Professor Christian Knigge graduated with a BSc (Hons) in Physics with Computer Science from the University of Southampton and then obtained a DPhil in Astrophysics from the University of Oxford. He was a postdoctoral fellow at the Space Telescope Science Institute in Baltimore and was then awarded a Hubble Fellowship, which we held at Columbia University in New York. He returned to the University of Southampton in 2000 and is now a Professor in the department.
Christian has broad research interests that include accretion physics on all scales, binary evolution, compact objects (white dawrfs, neutron stars and black holes), globular clusters, radiative transfer and (astro)statistics.
I currently teach the first-year core module PHYS1201 "Physics Skills: Programming and Data Analysis", as well as PHYS2011 "Design and Observation in Astronomy", which includes a 2-week field trip to Tenerife during which we spend 1 week at the Observario del Teide carrying out astronomical observations.
Dieball, A., Knigge, C., Zurek, D.R., Shara, M.M, Long, K.S., Charles, P. A., Hannikainen, D.C. and van Zyl, L. (2005) An ultracompact x-ray binary in the Globular Cluster M15 (NGC 7078). Astrophysical Journal, 634 (1), L105-L108. (doi:10.1086/498712).
Knigge, C, Zurek, D.R., Shara, M.M. and Long, K.S. (2002) A far-ultraviolet survey of 47 Tucanae. I. Imaging. Astrophysical Journal, 579 (2), 752-759. (doi:10.1086/342835).
Long, K.S. and Knigge, C. (2002) Modeling the spectral signatures of accretion disk winds: a new Monte Carlo approach. Astrophysical Journal, 579 (2), 725-740. (doi:10.1086/342879).
Steeghs, D., Marsh, T.R., Knigge, C., Maxted, P.F.L., Kuulkers, E. and Skidmore, W. (2001) Emission from the secondary star in the old cataclysmic variable WZ Sagittae. Astrophysical Journal, 562 (2), L145-L148. (doi:10.1086/338107).
Goad, M.R., Roberts, T.P., Knigge, C. and Lira, P. (2002) The optical counterpart of the ultraluminous X-ray source NGC 5204 X-1. Monthly Notices of the Royal Astronomical Society, 335 (3), L67-L70. (doi:10.1046/j.1365-8711.2002.05852.x).
Knigge, Christian (2006) The donor stars of cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 373 (2), 484-502. (doi:10.1111/j.1365-2966.2006.11096.x).
McHardy, I., Koerding, E., Knigge, C., Uttley, P. and Fender, R.P. (2006) Active galactic nuclei as scaled-up Galactic black holes. Nature, 444 (7120), 730-732. (doi:10.1038/nature05389).
Peacock, Mark B., Maccarone, Thomas J., Knigge, Christian, Kundu, Arunav, Waters, Christopher Z., Zepf, Stephen E. and Zurek, David R. (2010) The M31 globular cluster system: ugriz and K-band photometry and structural parameters. Monthly Notices of the Royal Astronomical Society, 402 (2), 803-818. (doi:10.1111/j.1365-2966.2009.15952.x).
Zurek, D.R., Knigge, C., Maccarone, T.J., Dieball, A. and Long, K.S. (2009) An ultracompact X-ray binary in the globular cluster NGC 1851. The Astrophysical Journal, 699 (2), 1113-1118. (doi:10.1088/0004-637X/699/2/1113).
Dieball, A., Knigge, C., Maccarone, T.J., Long, K.S., Hannikainen, D.C., Zurek, D. and Shara, M. (2009) Blue hook stars in globular clusters. Monthly Notices of the Royal Astronomical Society, 394 (1), L56-L60. (doi:10.1111/j.1745-3933.2008.00609.x).
Peacock, Mark B., Maccarone, Thomas J., Waters, Christopher Z., Kundu, Arunav, Zepf, Stephen E., Knigge, Christian and Zurek, David R. (2008) Wide field CAMera survey of M31 globular clusters: low-mass X-ray binaries. Monthly Notices of the Royal Astronomical Society: Letters, 392 (1), L55-L59. (doi:10.1111/j.1745-3933.2008.00588.x).
Maccarone, Thomas J. and Knigge, Christian (2007) Compact objects in globular clusters. Astronomy & Geophysics, 48 (5), 12-20. (doi:10.1111/j.1468-4004.2007.48512.x).
Scaringi, S., Bird, A.J., Norton, A.J., Knigge, C., Hill, A.B., Clark, D.J., Dean, A.J., McBride, V.A., Barlow, E.J., Bassani, L., Bazzano, A., Fiocchi, M. and Landi, R. (2010) Hard X-ray properties of magnetic cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 401 (4), 2207-2218. (doi:10.1111/j.1365-2966.2009.15826.x).
Dieball, Andrea, Long, Knox S., Knigge, Christian, Thomson, Grace S. and Zurek, David R. (2010) A far-ultraviolet survey of M80: x-ray source counterparts, strange blue stragglers, and the recovery of nova T SCO. The Astrophysical Journal, 710 (1), 332. (doi:10.1088/0004-637X/710/1/332).
Dieball, A., Knigge, C., Zurek, D.R., Shara, M.M., Long, K.S., Charles, P.A. and Hannikainen, D. (2009) Erratum: "unveiling the core of the globular cluster M 15 in the ultraviolet" (2007, ApJ, 670, 379). The Astrophysical Journal, 708 (2), 1772. (doi:10.1088/0004-637X/708/2/1772).
Scaringi, S., Cottis, C. E., Knigge, C. and Goad, M. R. (2009) Classifying broad absorption line quasars: metrics, issues and a new catalogue constructed from SDSS DR5. Monthly Notices of the Royal Astronomical Society, 399 (4), 2231-2238. (doi:10.1111/j.1365-2966.2009.15426.x).
Wang, Y., Kaiser, C. R., Laing, R., Alexander, P., Pavlovski, G. and Knigge, C. (2009) A relativistic mixing-layer model for jets in low-luminosity radio galaxies. Monthly Notices of the Royal Astronomical Society, 397 (2), 1113-1124. (doi:10.1111/j.1365-2966.2009.15026.x).
Long, Knox S., Gänsicke, Boris T., Knigge, Christian, Froning, Cynthia S. and Monard, Berto (2009) The effect of a superoutburst on the white dwarf and disk of VW Hydri as observed with FUSE. Astrophysical Journal, 697 (2), 1512. (doi:10.1088/0004-637X/697/2/1512).
Ness, J.-U., Drake, J.J., Beardmore, A.P., Boyd, D., Bode, M.F., Brady, S., Evans, P.A., Gaensicke, B.T., Kitamoto, S., Knigge, C., Miller, I., Osborne, J.P., Page, K.L., Rodriguez-Gil, P., Schwarz, G., Staels, B., Steeghs, D., Takei, D., Tsujimoto, M., Wesson, R. and Zijlstra, A. (2009) Swift X-ray and ultraviolet monitoring of the classical nova V458 VUL (Nova Vul 2007). The Astronomical Journal, 137 (5), 4160. (doi:10.1088/0004-6256/137/5/4160).
Fender, R.P., Russell, D.M., Knigge, C., Soria, R., Hynes, R.I. and Goad, M. (2009) An anticorrelation between X-ray luminosity and H? equivalent width in X-ray binaries. Monthly Notices of the Royal Astronomical Society, 393 (4), 1608-1616. (doi:10.1111/j.1365-2966.2008.14299.x).
Maccarone, Thomas J., Fender, Robert P., Knigge, Christian and Tzioumis, A. K. (2009) Constraints on black hole accretion in V Puppis. Monthly Notices of the Royal Astronomical Society, 393 (3), 1070. (doi:10.1111/j.1365-2966.2008.14291.x).
Knigge, Christian, Leigh, Nathan and Sills, Alison (2009) A binary origin for ‘blue stragglers’ in globular clusters. Nature, 457 (7227), 288-290. (doi:10.1038/nature07635).
Sale, Stuart E., Drew, J. E., Unruh, Y. C., Irwin, M. J., Knigge, C., Phillipps, S., Zijlstra, A. A., Gänsicke, B. T., Greimel, R., Groot, P. J., Mampaso, A., Morris, R. A. H., Napiwotzki, R., Steeghs, D. and Walton, N. A. (2009) High spatial resolution galactic 3D extinction mapping with IPHAS. Monthly Notices of the Royal Astronomical Society: Letters, 392 (2), 497-513. (doi:10.1111/j.1365-2966.2008.14083.x).
Wesson, R., Barlow, M. J., Corradi, R. L. M., Drew, J. E., Groot, P.J., Knigge, None, Steeghs, D., Gaensicke, B. T., Napiwotzki, R., Rodriguez-Gil, P., Zijlstra, A. A., Bode, M. F., Drake, J. J., Frew, D.J., Gonzales-Solares, E.A., Greimel, R., Irwin, M.J., Morales-Reuda, L., Nelemans, G., Parker, Q.A., Sale, S.E., Sokoloski, J.L., Somero, A., Uthas, H., Walton, N.A., Warner, Brian, Watson, C.A. and Wright, N.J. (2008) A planetary nebula around nova V458 vulpeculae undergoing flash ionization. Astrophysical Journal, 688 (1), L21. (doi:10.1086/594366).
Servillat, M., Dieball, A., Webb, N. A., Knigge, C., Cornelisse, R., Barret, D., Long, K. S., Shara, M. M. and Zurek, D. R. (2008) Combined Chandra, XMM-Newton, and Hubble space telescope observations of the galactic globular cluster NGC 2808. Astronomy & Astrophysics, 490 (2), 641-654. (doi:10.1051/0004-6361:200810188).
Knigge, Christian, Dieball, Andrea, Apellániz, Jesús Maíz, Long, Knox S., Zurek, David R. and Shara, Michael M. (2008) Stellar exotica in 47 tucanae. Astrophysical Journal, 683 (2), 1006. (doi:10.1086/589987).
Gonzlez-Solares, E.A., Walton, N.A., Greimel, R., Drew, J.E., Irwin, M.J., Sale, S.E., Andrews, K., Aungwerojwit, A., Barlow, M.J., van den Besselaar, E., Corradi, R.L.M., Gänsicke, B.T., Groot, P.J., Hales, A.S., Hopewell, E.C., Hu, H., Irwin, J., Knigge, C., Lagadec, E., Leisy, P., Lewis, J.R., Mampaso, A., Matsuura, M., Moont, B., Morales-Rueda, L., Morris, R.A.H., Naylor, T., Parker, Q.A., Prema, P., Pryzas, S., Rixon, G.T., Rodríguez-Gil, P., Roelofs, G., Sabin, L., Skillen, I., Suso, J., Tata, R., Vironen, K., Vink, J.S., Witham, A., Wright, N.J., Zijlstra, A.A., Drake, J., Fabregat, J., Lennon, D.J., Lucas, P.W., Martin, E.L., Phillipps, S., Steeghs, D. and Unruh, Y.C. (2008) Initial data release from the INT photometric H survey of the Northern Galactic Plane (IPHAS). Monthly Notices of the Royal Astronomical Society, 388 (1), 89-104. (doi:10.1111/j.1365-2966.2008.13399.x).
Sion, Edward M., Gänsicke, Boris T., Long, Knox S., Szkody, Paula, Knigge, Christian, Hubeny, Ivan, deMartino, Domitilla and Godon, Patrick (2008) Hubble space telescope STIS spectroscopy of long-period dwarf novae in quiescence. Astrophysical Journal, 681 (1), [543]. (doi:10.1086/586699).
Kording, Elmar, Rupen, Michael, Knigge, Christian, Fender, Rob, Dhawan, Vivek, Templeton, Matthew and Muxlow, Tom (2008) A transient radio jet in an erupting dwarf nova. Science, 320 (5881), 1318-1320. (doi:10.1126/science.1155492). (PMID:18535237)
Patterson, Joseph, Thorstensen, John R. and Knigge, Christian (2008) SDSS 1507+52: A Halo Cataclysmic Variable?1. Publications of the Astronomical Society of the Pacific, 120 (867), 510-522. (doi:10.1086/588615).
Knigge, Christian, Scaringi, Simone, Goad, Michael R. and Cottis, Christopher E. (2008) The intrinsic fraction of broad-absorption line quasars. Monthly Notices of the Royal Astronomical Society, 386 (3), 1426-1435. (doi:10.1111/j.1365-2966.2008.13081.x).
Servillat, M., Webb, N.A., Barret, D., Cornelisse, R., Dieball, A., Knigge, C., Long, K.S., Shara, M.M. and Zurek, D.R. (2007) XMM-Newton and chandra observations of neutron stars and cataclysmic variables in the globular cluster NGC 2808. Proceedings of the International Astronomical Union, 3 (S246), 373-374. (doi:10.1017/S1743921308016001).
Dieball, A., Knigge, C., Zurek, D.R., Shara, M.M., Long, K.S., Charles, P.A. and Hannikainen, D. (2007) Unveiling the core of M 15 in the far-ultraviolet. Proceedings of the International Astronomical Union, 3 (S246), 361-362. (doi:10.1017/S1743921308015949).
Leigh, Nathan, Sills, Alison and Knigge, Christian (2007) Where the blue stragglers roam: searching for a link between formation and environment. Proceedings of the International Astronomical Union, 3 (S246), 331-335. (doi:10.1017/S1743921308015871).
Knigge, C., Dieball, A., Maíz-Apellániz, J., Long, K.S., Zurek, D.R. and Shara, Mike M. (2007) Stellar Exotica in 47 Tucanae. Proceedings of the International Astronomical Union, 3 (S246), 321-325. (doi:10.1017/S1743921308015858).
Leigh, Nathan, Sills, Alison and Knigge, Christian (2008) Erratum: “Where the Blue Stragglers Roam: Searching for a Link between Formation and Environment” (ApJ, 661, 210 [2007]). Astrophysical Journal, 678 (1), 564. (doi:10.1086/529584).
Pretorius, Magaretha L. and Knigge, Christian (2008) An H?-selected sample of cataclysmic variables – II. Implications for CV evolution. Monthly Notices of the Royal Astronomical Society, 385 (3), 1485-1493. (doi:10.1111/j.1365-2966.2008.12934.x).
Pretorius, Magaretha L. and Knigge, Christian (2008) An H?-selected sample of cataclysmic variables – I. Observations of newly discovered systems. Monthly Notices of the Royal Astronomical Society, 385 (3), 1471-1484. (doi:10.1111/j.1365-2966.2008.12933.x).
Witham, A.R., Knigge, C., Drew, J.E., Greimel, R., Steeghs, D., Gänsicke, B.T., Groot, P.J. and Mampaso, A. (2008) The IPHAS catalogue of Hα emission-line sources in the northern Galactic plane. Monthly Notices of the Royal Astronomical Society, 384 (4), 1277-1288. (doi:10.1111/j.1365-2966.2007.12774.x).
Hill, Adam B., Bird, A.J., Dean, A.J., Knigge, C. and McBride, V.A. (2008) New and unusual HMXB activity observed by INTEGRAL. Bandyopadhyay, Reba M., Wachter, Stefanie, Gelino, Dawn and Gelino, Christopher R. (eds.) A Population Explosion: The Nature & Evolution of X-ray Binaries in Diverse Environments, St. Pete Beach, Florida, United States. 27 Oct - 02 Nov 2007. p. 263 . (doi:10.1063/1.2945054).
Knigge, Christian, Baraffe, Isabelle and Patterson, Joseph (2011) The evolution of cataclysmic variables as revealed by their donor stars. The Astrophysical Journal Supplement Series, 194 (2), 1-48. (doi:10.1088/0067-0049/194/2/28).
Knigge, Christian, Coe, Malcolm J. and Podsiadlowski, Philipp (2011) Two populations of X-ray pulsars produced by two types of supernovae. Nature, 479, 372-375. (doi:10.1038/nature10529).
Higginbottom, N., Knigge, C., Long, K. S., Sim, S. A. and Matthews, J. H. (2013) A simple disc wind model for broad absorption line quasars. Monthly Notices of the Royal Astronomical Society, 436 (2), 1390-1407. (doi:10.1093/mnras/stt1658).
Hernandez Santisteban, Juan, Knigge, Christian, Littlefair, Stuart, Breton, Rene, Dhillon, Vik, Gänsicke, Boris, Marsh, Thomas, Pretorius, Magaretha, Southworth, John and Hauschildt, Peter (2016) An irradiated brown dwarf companion to an accreting white dwarf. Nature, 533, 366-368. (doi:10.1038/nature17952).
Gandhi, P., Littlefair, S.P., Hardy, L.K., Dhillon, V.S., Marsh, T.R., Shaw, A.W., Altamirano, D., Caballero-Garcia, M.D., Casares, J., Casella, P., Castro-Tirado, A.J., Charles, P.A., Dallilar, Y., Eikenberry, S., Fender, R.P., Hynes, R.I., Knigge, C., Kuulkers, E., Mooley, K., Munoz-Darias, T., Pahari, M., Rahoui, F., Russell, D.M., Hernandez Santisteban, J.V., Shahbaz, T., Terndrup, D.M., Tomsick, J. and Walton, D.J. (2016) Furiously fast and red: sub-second optical flaring in V404 Cyg during the 2015 outburst peak. Monthly Notices of the Royal Astronomical Society, 459 (1), 554-572. (doi:10.1093/mnras/stw571).
Shankar, Francesco, Calderone, Giorgio, Knigge, Christian, Matthews, James, Buckland, Rachel, Hryniewicz, Krzysztof, Sivakoff, Gregory, Dai, Xinyu, Richardson, Kayleigh, Riley, Jack, Gray, James, La Franca, Fabio, Altamirano, Diego, Croston, Judith, Gandhi, Poshak, Hoenig, Sebastian, Mchardy, Ian and Middleton, Matthew (2016) The optical-UV emissivity of quasars: dependence on black hole mass and radio loudness. The Astrophysical Journal, 818 (1), 1-6. (doi:10.3847/2041-8205/818/1/L1).
Russell, T.D., Miller-Jones, J.C.A., Sivakoff, G.R., Altamirano, D., O'Brien, T.J., Page, K.L., Templeton, M.R., Kording, E.G., Knigge, C., Rupen, M.P., Fender, R.P., Heinz, S., Maitra, D., Markoff, S., Migliari, S., Remillard, R.A., Russell, D.M., Sarazin, C.L. and Waagen, E.O. (2016) The reproducible radio outbursts of SS Cygni. Monthly Notices of the Royal Astronomical Society, 460 (4), 3720-3732. (doi:10.1093/mnras/stw1238).
Zurek, D.R., Knigge, C., Maccarone, T.J., Pooley, D., Dieball, A., Long, K.S., Shara, M. and Sarajedini, A. (2016) A far-ultraviolet variable with an 18-minute period in the globular cluster NGC 1851. Monthly Notices of the Royal Astronomical Society, 1-10. (doi:10.1093/mnras/stw1190).
Toloza, O., Gansicke, B.T., Hermes, J.J., Townsley, D.M., Schreiber, M.R., Szkody, P., Pala, A., Beuermann, K., Bildsten, L., Breedt, E., Cook, M., Godon, P., Henden, A.A., Hubeny, I., Knigge, C., Long, K.S., Marsh, R.R., De Martino, D., Mukadam, A.S., Myers, G., Nelson, P., Oksanen, A., Patterson, J., Sion, E.M. and Zorotovic, M. (2016) GW Librae: A unique laboratory for pulsations in an accreting white dwarf. Monthly Notices of the Royal Astronomical Society, 459 (4), 3929-3938. (doi:10.1093/mnras/stw838).
Matthews, J.H., Knigge, C., Long, K.S., Sim, S.A., Higginbottom, N. and Mangham, S.A. (2016) Testing quasar unification: radiative transfer in clumpy winds. Monthly Notices of the Royal Astronomical Society, 458 (1), 293-305. (doi:10.1093/mnras/stw323).
Coppejans, Deanne L., Kording, Elmar G., Knigge, Christian, Pretorius, Magaretha L., Woudt, Patrick A., Groot, Paul J., Van Eck, Cameron L. and Drake, Andrew J. (2016) Statistical properties of dwarf novae-type cataclysmic variables: the outburst catalogue. Monthly Notices of the Royal Astronomical Society, 456 (4), 4441-4454. (doi:10.1093/mnras/stv2921).
Miller-Jones, J.C.A., Strader, J., Heinke, C.O., Maccarone, T.J., van den Berg, M., Knigge, C., Chomiuk, L., Noyola, E., Russell, T.D., Seth, A.C. and Sivakoff, G.R. (2015) Deep radio imaging of 47 Tuc identifies the peculiar X-ray source X9 as a new black hole candidate. Monthly Notices of the Royal Astronomical Society, 453 (4), 3918-3931. (doi:10.1093/mnras/stv1869).
Scaringi, Simon, Maccarone, Thomas J., Kording, Elmar, Knigge, Christian, Vaughan, Simon, Marsh, Thomas R., Aranzana, Ester, Dhillon, Vikram S. and Barros, Susana C.C. (2015) Accretion-induced variability links young stellar objects, white dwarfs, and black holes. Science Advances, 1 (9), 1-7. (doi:10.1126/sciadv.1500686).
Gosnell, Natalie M., Mathieu, Robert D., Geller, Aaron M., Sills, Alison, Leigh, Nathan and Knigge, Christian (2015) Implications for the formation of blue straggler stars from HST ultraviolet observations of NGC 188. The Astrophysical Journal, 814 (2), 1-12. (doi:10.1088/0004-637X/814/2/163).
Higginbottom, Nick, Proga, Daniel, Knigge, Christian, Long, Knox S., Matthews, James H. and Sim, Stuart A. (2014) Line-driven disk winds in active galactic nuclei: the critical importance of ionization and radiative transfer. The Astrophysical Journal, 789 (1), 1-12, [19]. (doi:10.1088/0004-637X/789/1/19).
Scaringi, S., Manara, C.F., Barenfeld, S.A., Groot, P.J., Isella, A., Kenworthy, M.A., Knigge, C., Maccarone, T.J., Ricci, L. and Ansdell, M. (2016) The peculiar dipping events in the disc-bearing young-stellar object EPIC 204278916. Monthly Notices of the Royal Astronomical Society, 463 (2), 2265-2272. (doi:10.1093/mnras/stw2155).
Coppejans, Deanne L., Körding, Elmar G., Miller-Jones, James C. A., Rupen, Michael P., Sivakoff, Gregory R., Knigge, Christian, Groot, Paul J., Woudt, Patrick A., Waagen, Elizabeth O. and Templeton, Matthew (2016) Dwarf nova-type cataclysmic variable stars are significant radio emitters. Monthly Notices of the Royal Astronomical Society, 463 (2), 2229-2241. (doi:10.1093/mnras/stw2133).
Neustroev, V.V, Marsh, T.R., Zharikov, S.V., Knigge, C., Kuulkers, E., Osborne, J.P., Page, K.L., Steeghs, D., Suleimanov, V.F., Tovmassian, G., Breedt, E., Frebel, A., Garcia-Diaz, Ma. T., Hambsch, F.-J., Jacobson, H., Parsons, S.G., Ryu, T., Sabin, L., Sjoberg, G., Miroshnichenko, A.S., Reichart, D.E., Haislip, J.B., Ivarsen, K.M., LaCluyze, A.P. and Moore, J.P. (2017) The remarkable outburst of the highly evolved post-period-minimum dwarf nova SSS J122221.7−311525⋆. Monthly Notices of the Royal Astronomical Society, 467 (1), 597-618. (doi:10.1093/mnras/stx084).
Higginbottom, N., Proga, D., Knigge, C. and Long, K.S. (2017) Thermal disk winds in x-ray binaries: realistic heating and cooling rates give rise to slow, but massive, outflows. The Astrophysical Journal, 836 (1), [42]. (doi:10.3847/1538-4357/836/1/42).
Hameury, J .M, Lasota, J.P, Knigge, Christian and Körding, E.G. (2017) Hystereses in dwarf nova outbursts and low-mass X-ray binaries. Astronomy & Astrophysics. (doi:10.1051/0004-6361/201629953).
Bahramian, Arash, Heinke, Craig O., Tudor, Vlad, Miller-Jones, James C. A., Bogdanov, Slavko, Maccarone, Thomas J., Knigge, Christian, Sivakoff, Gregory R., Chomiuk, Laura, Strader, Jay, Garcia, Javier and Kallman, Timothy (2017) The ultracompact nature of the black hole candidate X-ray binary 47 Tuc X9. Monthly Notices of the Royal Astronomical Society, 467 (2), 2199-2216. (doi:10.1093/mnras/stx166).
Pala, A.F, Gansicke, B.T., Townsley, D.M., Boyd, D., Cook, M.J., De Martino, D., Godon, P., Haislip, J.B., Henden, A.A., Hubeny, I., Ivarsen, K.M., Kafka, S., Knigge, C., LaCluyze, A.P., Long, K.S., Marsh, T.R., Monard, B., Moore, J.P., Myers, G., Nelson, P., Nogami, D., Oksanen, A., Pickard, R., Poyner, G., Reichart, D.E., Rodriguez Perez, D., Schreiber, M.R., Shears, J., Sion, E.M., Stubbings, R., Szkody, P. and Zorotovic, M. (2016) Effective temperatures of cataclysmic variable white dwarfs as a probe of their evolution. Monthly Notices of the Royal Astronomical Society, 466 (3), 2855-2878. (doi:10.1093/mnras/stw3293).
Matthews, J.H, Knigge, C. and Long, K.S. (2017) Quasar emission lines as probes of orientation: implications for disc wind geometries and unification. Monthly Notices of the Royal Astronomical Society, 467 (3), 2571-2584. (doi:10.1093/mnras/stx231).
Dieball, A., Rasekh, A and Knigge, Christian (2017) Far-ultraviolet observation of the globular cluster NGC 6397. Monthly Notices of the Royal Astronomical Society.
Mangham, S.W., Knigge, C., Matthews, J.H., Long, K.S., Sim, S.A. and Higginbottom, N. (2017) The reverberation signatures of rotating disc winds in active galactic nuclei. Monthly Notices of the Royal Astronomical Society, 471 (4), 4788-4801. (doi:10.1093/mnras/stx1863).
Patruno, Alessandro, Jaodand, Amruta, Kuiper, Lucien, Bult, Peter, Hessels, Jason, Knigge, Christian, King, Andrew R., Wijnands, Rudy and Klis, Michiel van der (2017) Radio pulse search and X-Ray monitoring of SAX J1808.4-3658: What causes its orbital evolution? The Astrophysical Journal, 841 (98). (doi:10.3847/1538-4357/aa6f5b).
Motta, S.E., Kajava, J.J.E., Sánchez-Fernández, C., Beardmore, A.P., Sanna, A., Page, K.L., Fender, R., Altamirano, D., Charles, P., Giustini, M., Knigge, C., Kuulkers, E., Oates, S. and Osborne, J.P. (2017) Swift observations of V404 Cyg during the 2015 outburst: X-ray outflows from super-Eddington accretion. Monthly Notices of the Royal Astronomical Society, 471 (2), 1797-1818. (doi:10.1093/mnras/stx1699).
Sandoval, L.E. Rivera, Santisteban, J.V. Hernandez, Degenaar, N., Wijnands, R., Knigge, C., Miller, J.M., Reynolds, M., Altamirano, D., Berg, M. van den and Hill, A. (2018) Mid-UV studies of the transitional millisecond pulsars XSS J12270-4859 and PSR J1023+0038 during their radio pulsar states. Monthly Notices of the Royal Astronomical Society, 476 (1), 1086-1099. (doi:10.1093/mnras/sty291).
Gosnell, Natalie M., Mathieu, Robert D., Geller, Aaron M., Sills, Alison, Leigh, Nathan and Knigge, Christian (2014) Detection of White Dwarf companions to Blue Stragglers in the open cluster NGC 188: direct evidence for recent mass transfer. The Astrophysical Journal Letters, 783 (1). (doi:10.1088/2041-8205/783/1/L8).
Hernandez Santisteban, J.V., Knigge, C., Pretorius, M.L., Sullivan, M. and Warner, B. (2018) The space density of post-period minimum cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 473 (3), 3241–3250. (doi:10.1093/mnras/stx2296).
Middleton, M.J., Casella, P., Gandhi, P., Bozzo, E., Anderson, G., Degenaar, N., Donnarumma, I., Israel, G., Knigge, C., Lohfink, A., Markoff, S., Marsh, T., Rea, N., Tingay, S., Wiersema, K., Altamirano, D., Bhattacharya, D., Brandt, W.N., Carey, S., Charles, P., Trigo, M. Diaz, Done, C., Kotze, M., Eikenberry, S., Fender, R., Ferruit, P., Fuerst, F., Greiner, J., Ingram, A., Heil, L., Jonker, P., Komossa, S., Leibundgut, B., Maccarone, T., Malzac, J., McBride, V., Miller-Jones, J., Page, M., Rossi, E.M., Russell, D.M., Shahbaz, T., Sivakoff, G.R., Tanaka, M., Thompson, D.J., Uemura, M., Uttley, P., Moorsel, G. van, Doesburgh, M. Van, Warner, B., Wilkes, B., Wilms, J. and Woudt, P. (2017) Paving the way to simultaneous multi-wavelength astronomy. New Astronomy Reviews. (doi:10.1016/j.newar.2017.07.002).
Gandhi, Poshak, Bachetti, Matteo, Dhillon, Vik S., Fender, Robert P., Hardy, Liam K., Harrison, Fiona A., Littlefair, Stuart P., Malzac, Julien, Markoff, Sera, Marsh, Tom R., Mooley, Kunal, Stern, Daniel, Tomsick, John A., Walton, Dominic J., Casella, Piergiorgio, Vincentelli, Federico, Altamirano, Diego, Casares, Jorge, Ceccobello, Chiara, Charles, Phil A., Ferrigno, Carlo, Hynes, Robert I., Knigge, Christian, Kuulkers, Erik, Pahari, Mayukh, Rahoui, Farid, Russell, David M. and Shaw, Aarran W. (2017) An elevation of 0.1 light-seconds for the optical jet base in an accreting Galactic black hole system. Nature Astronomy, 1, 859-864. (doi:10.1038/s41550-017-0273-3).
Fender, R., Woudt, P. A., Armstrong, R., Groot, P., McBride, V., Miller-Jones, J., Mooley, K., Stappers, B., Wijers, R., Bietenholz, M., Blyth, S., Bottcher, M., Buckley, D., Charles, P., Chomiuk, L., Coppejans, D., Corbel, S., Coriat, M., Daigne, F., Blok, W. J. G. de, Falcke, H., Girard, J., Heywood, I., Horesh, A., Horrell, J., Jonker, P., Joseph, T., Kamble, A., Knigge, C., Koerding, E., Kotze, M., Kouveliotou, C., Lynch, C., Maccarone, T., Meintjes, P., Migliari, S., Murphy, T., Nagayama, T., Nelemans, G., Nicholson, G., O'Brien, T., Oodendaal, A., Oozeer, N., Osborne, Julian, Perez-Torres, M., Ratcliffe, S., Ribeiro, V., Rol, E., Rushton, A., Scaife, A., Schurch, M., Sivakoff, G., Staley, T., Steeghs, D., Stewart, I., Swinbank, J., Heyden, K. van der, Horst, A. van der, Soelen, B. van, Vergani, S., Warner, B. and Wiersema, K. (2018) ThunderKAT: the MeerKAT large survey project for image-plane radio transients. Proceedings of Science, 1-12. (doi:10.22323/1.277.0013).
Neustroev, V.V., Page, K.L., Kuulkers, E., Osborne, J.P., Beardmore, A.P., Knigge, C., Marsh, T., Suleimanov, V.F. and Zharikov, S.V. (2018) Superhumps linked to X-ray emission. The superoutbursts of SSS J122221.7-311525 and GW Lib. Astronomy & Astrophysics, 611, [A13]. (doi:10.1051/0004-6361/201731719).
Sell, P.H., Arur, K., Maccarone, T.J., Kotak, R., Knigge, C., Sand, D.J. and Valenti, S. (2018) Chandra X-ray constraints on the candidate Ca-rich gap transient SN 2016hnk. Monthly Notices of the Royal Astronomical Society: Letters, 475 (1), L111-L115. (doi:10.1093/mnrasl/sly011).
Scaringi, S., Macarone, T.J., D'Angelo, C., Knigge, C. and Groot, P.J. (2017) Magnetically gated accretion in an accreting 'non-magnetic' white dwarf. Nature, 552, 210-213. (doi:10.1038/nature24653).
Tudor, V., Miller-Jones, J.C.A., Knigge, C., Maccarone, T.J., Tauris, T.M., Bahramian, A., Chomiuk, L., Heinke, C.O., Sivakoff, G.R., Strader, J., Plotkin, R.M., Soria, R., Albrow, M.D., Anderson, G.E., Berg, M. van den, Bernardini, F., Bogdanov, S., Britt, C.T., Russell, D.M. and Zurek, D.R. (2018) HST spectrum and timing of the ultra-compact X-ray binary candidate 47 Tuc X9. Monthly Notices of the Royal Astronomical Society, 476 (2), 1614-1623. (doi:10.1093/mnras/sty274).
Barentsen, Geert, Farnhill, H.J., Drew, J.E., González-Solares, E.A., Greimel, R., Irwin, M.J., Miszalski, B., Ruhland, C., Groot, P., Mampaso, A., Sale, S.E., Henden, A.A., Aungwerojwit, A., Barlow, M.J., Carter, P.J., Corradi, R.L.M., Drake, J.J., Eislöffel, J., Fabregat, J., Gänsicke, B.T., Fusillo, N.P. Gentile, Greiss, S., Hales, A.S., Hodgkin, S., Huckvale, L., Irwin, J., King, R., Knigge, C., Kupfer, T., Lagadec, E., Lennon, D.J., Lewis, J.R., Mohr-Smith, M., Morris, R.A.H., Naylor, T., Parker, Q.A., Phillipps, S., Pyrzas, S., Raddi, R., Roelofs, G.H.A., Rodríguez-Gil, P., Sabin, L., Scaringi, S., Steeghs, D., Suso, J., Tata, R., Unruh, Y.C., Roestel, J. van, Viironen, K., Vink, J.S., Walton, N.A., Wright, N.J. and Zijlstra, A.A. (2014) The second data release of the INT Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS DR2). Monthly Notices of the Royal Astronomical Society, 444 (4), 3230-3257. (doi:10.1093/mnras/stu1651).
Drew, J.E., Gonzalez-Solares, E., Greimel, R., Irwin, M.J., Yoldas, A. Kupcu, Lewis, J., Barentsen, G., Eisloeffel, J., Farnhill, H.J., Martin, W.E., Walsh, J.R., Walton, N.A., Mohr-Smith, M., Raddi, R., Sale, S.E., Wright, N.J., Groot, P., Barlow, M.J., Corradi, R.L.M., Drake, J.J., Fabregat, J., Frew, D.J., Gaensicke, B.T., Knigge, C., Mampaso, A., Morris, R.A.H., Naylor, T., Parker, Q.A., Phillipps, S., Ruhland, C., Steeghs, D., Unruh, Y.C., Vink, J.S., Wesson, R. and Zijlstra, A.A. (2014) The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+). Monthly Notices of the Royal Astronomical Society, 440 (3), 2036-2058. (doi:10.1093/mnras/stu394).
Lucy, Adrian B., Knigge, Christian and Sokoloski, J. L. (2018) Broad absorption line symbiotic stars: highly ionized species in the fast outflow from MWC 560. Monthly Notices of the Royal Astronomical Society.
Papitto, A., Rea, N., Zelati, F. Coti, Martino, D. de, Scaringi, S., Campana, S., Wilhelmi, E. de Oña, Knigge, C., Serenelli, A., Stella, L., Torres, D.F., D'Avanzo, P. and Israel, G.L. (2018) The first continuous optical monitoring of the transitional millisecond pulsar PSR J1023+0038 with Kepler. The Astrophysical Journal Letters. (doi:10.3847/2041-8213/aabee9).
Higginbottom, Nick, Knigge, Christian, Long, Knox S., Matthews, James H., Sim, Stuart A. and Hewitt, Henrietta A. (2018) Radiation-hydrodynamic simulations of thermally-driven disc winds in X-ray binaries: a direct comparison to GRO J1655-40. Monthly Notices of the Royal Astronomical Society, 479 (3), 3651–3662. (doi:10.1093/mnras/sty1599).
Tudor, V., Miller-Jones, J. C.A., Knigge, C., Maccarone, T. J., Tauris, T. M., Bahramian, A., Chomiuk, L., Heinke, C. O., Sivakoff, G. R., Strader, J., Plotkin, R. M., Soria, R., Albrow, M. D., Anderson, G. E., van den Berg, M., Bernardini, F., Bogdanov, S., Britt, C. T., Russell, D.M. and Zurek, D. R. (2018) HST spectrum and timing of the ultracompact X-ray binary candidate 47 Tuc X9. Monthly Notices of the Royal Astronomical Society, 476 (2), 1889-1908. (doi:10.1093/MNRAS/STY284).
Scaringi, S., Knigge, C., Drew, J. E., Monguio, M., Breedt, E., Fratta, M., Gaensicke, B., Maccarone, T. J., Pala, A. F. and Schill, C. (2018) The Gaia/IPHAS and Gaia/KIS value-added catalogues. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/sty2498).
Oates, S. R., Motta, S., Beardmore, A. P., Gandhi, P., Kuin, N. P. M., Pasquale, M. De, Altamirano, D., Breeveld, A. A., Castro-Tirado, A. J., Knigge, C. and Steeghs, Danny (2019) Swift UVOT observations of the 2015 outburst of V404 Cygni. Monthly Notices of the Royal Astronomical Society, 488 (4), 4843-4857. (doi:10.1093/mnras/stz1998).
Ramsay, G., Green, M. J., Marsh, T. R., Kupfer, T., Breedt, E., Korol, V., Groot, P. J., Knigge, C., Nelemans, G., Steeghs, D., Woudt, P. and Aungwerojwit, A. (2018) The physical properties of AM CVn stars: new insights from Gaia DR2. Astronomy & Astrophysics, 620, [A141]. (doi:10.1051/0004-6361/201834261).
Leigh, N.W.C., Panurach, T., Simunovic, M., Geller, A. M., Zurek, D., Shara, M. M., Sills, A., Knigge, C., Gosnell, N.M., Mathieu, R., Puzia, T.H., Ventura, J. and Minor, Q. (2019) Constraints on blue straggler formation mechanisms in Galactic globular clusters from proper motion velocity distributions. Monthly Notices of the Royal Astronomical Society, 482 (1), 231-239. (doi:10.1093/mnras/sty2707).
Peacock, Mark B., Zepf, Stephen E., Maccarone, Thomas J., Kundu, Arunav, Knigge, Christian, Dieball, Andrea and Strader, Jay (2018) Hubble Space Telescope FUV observations of M31's globular clusters suggest a spatially homogeneous helium-enriched subpopulation. Monthly Notices of the Royal Astronomical Society, 481 (3), 3313-3324. (doi:10.1093/mnras/sty2461).
Pala, A. F., Gänsicke, B. T., Marsh, T. R., Breedt, E., Hermes, J. J., Landstreet, J. D., Schreiber, M. R., Townsley, D. M., Wang, L., Aungwerojwit, A., Hambsch, F. -J., Monard, B., Myers, G., Nelson, P., Pickard, R., Poyner, G., Reichart, D. E., Stubbings, R., Godon, P., Szkody, P., Martino, D. De, Dhillon, V. S., Knigge, C. and Parsons, S. G. (2019) Evidence for mass accretion driven by spiral shocks onto the white dwarf in SDSS J123813.73-033933.0. Monthly Notices of the Royal Astronomical Society, 483 (1), 1080-1103. (doi:10.1093/mnras/sty3174).
Court, J.M.C., Altamirano, D., Albayati, A. C., Sanna, A., Belloni, T., Overton, T., Degenaar, N., Wijnands, R., Yamaoka, K., Hill, A.B. and Knigge, C. (2018) The evolution of x-ray bursts in the "Bursting Pulsar" GRO J1744-28. Monthly Notices of the Royal Astronomical Society, 481 (2), 2273-2298. (doi:10.1093/mnras/sty2312).
Jackman, C. M., Knigge, C., Altamirano, D., Gladstone, R., Dunn, W., Elsner, R., Kraft, R., Branduardi-Raymont, G. and Ford, P. (2018) Assessing quasi-periodicities in Jovian x-ray emissions: techniques and heritage survey. Journal of Geophysical Research: Space Physics, 123 (11), 9204-9221. (doi:10.1029/2018JA025490).
Dehghanian, M., Ferland, G.J., Kriss, G.A., Peterson, B.M., Mathur, S., Mehdipour, M., Guzman, F., Chatzikos, M., Van Hoof, P.A.M., Williams, R.J.R., Arav, N., Barth, A.J., Bentz, M.C., Bisogni, S., Brandt, W.N., Crenshaw, D.M., Dalla Bonta, E., De Rosa, G., Fausnaugh, M.M., Gelbord, J. M., Goad, M.R., Gupta, A., Horne, K., Kaastra, J., Knigge, C., Korista, K.T., Mc Hardy, I. M., Pogge, R.W., Starkey, D.A. and Vestergaard, M. (2019) Space telescope and optical reverberation mapping project. X. Understanding the absorption-line holiday in NGC 5548. The Astrophysical Journal, 887 (2), 1-10, [119]. (doi:10.3847/1538-4357/ab1b48).
Higginbottom, Nick, Knigge, Christian, Long, Knox S., Matthews, James H. and Parkinson, Edward J. (2019) The luminosity dependence of thermally-driven disc winds in low-mass X-ray binaries. Monthly Notices of the Royal Astronomical Society, 484 (4), 4635-4644. (doi:10.1093/mnras/stz310).
Gosnell, Natalie M., Mathieu, Robert D., Sills, Alison, Geller, Aaron M., Leigh, Nathan and Knigge, Christian (2015) The mass-transfer formation frequency of blue straggler stars in the old open cluster NGC 188. American Astronomical Society, AAS Meeting #225, , Seattle, United States. 04 - 08 Jan 2015.
Toonen, Silvia, Voss, Rasmus and Knigge, Christian (2014) The influence of mass-transfer variability on the growth of white dwarfs, and the implications for supernova type Ia rates. Monthly Notices of the Royal Astronomical Society, 441 (1), 354–363. (doi:10.1093/mnras/stu569).
Drew, J. E., Barentsen, G., Fabregat, J., Farnhill, H., Mohr-Smith, M., Wright, N. J., Gonzalez-Solares, E., Irwin, M. J., Lewis, J., Yoldas, A. K., Greimel, R., Eislöffel, J., Groot, P., Barlow, M. J., Corradi, R., Gänsicke, B. T., Knigge, C., Mampaso, A., Morris, R., Naylor, T., Parker, Q. A., Raddi, R., Sale, S. E., Steeghs, D., Unruh, Y. C., Vink, J. S., Walsh, J. R., Walton, N. A., Wesson, R. and Zijlstra, A. (2013) VST photometric H-alpha survey of the Southern Galactic Plane and Bulge (VPHAS+). The Messenger, 154, 41-43.
Scaringi, S., Maccarone, T.J., Hynes, R.I., Körding, E., Ponti, G., Knigge, C., Britt, C.T. and van Winckel, H. (2015) Sco X-1 revisited with Kepler, MAXI and HERMES: outflows, time-lags and echoes unveiled. Monthly Notices of the Royal Astronomical Society, 451 (4), 3857-3867. (doi:10.1093/mnras/stv1216).
Dieball, A., Bedin, L.R., Knigge, C., Rich, R.M., Allard, F., Dotter, A., Richer, H. and Zurek, D. (2016) Deep near-IR observations of the globular cluster M4: hunting for brown dwarfs. The Astrophysical Journal, 817 (1), [38005476]. (doi:10.3847/0004-637X/817/1/48).
Verbeek, Kars, Groot, Paul J., Nelemans, Gijs, Scaringi, Simone, Napiwotzki, Ralf, Drew, Janet E., Steeghs, Danny, Casares, Jorge, Corral-Santana, Jesus M., Gänsicke, Boris T., González-Solares, Eduardo, Greimel, Robert, Heber, Ulrich, Irwin, Mike J., Knigge, Christian, Wright, Nicholas J. and Zijlstra, Albert A. (2013) A determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic plane, based on the UVEX survey. Monthly Notices of the Royal Astronomical Society, 434 (4), 2727-2741. (doi:10.1093/mnras/stt1005).
Hynes, Robert I., Torres, M.A.P., Heinke, C.O., Maccarone, T.J., Mikles, V.J., Britt, C.T., Knigge, C., Greiss, S., Jonker, P.G., Steeghs, D., Nelemans, G., Bandyopadhyay, R.M. and Johnson, C.B. (2014) CXOGBS J173620.2-293338: A candidate symbiotic X-ray binary associated with a bulge carbon star. The Astrophysical Journal, 780 (1), 11. (doi:10.1088/0004-637X/780/1/11).
Farrell, S.A., Servillat, M., Gladstone, J.C., Webb, N.A., Soria, R., Maccarone, T.J., Wiersema, K., Hau, G.K.T., Pforr, J., Hakala, P.J., Knigge, C., Barret, D., Maraston, C. and Kong, A.K.H. (2014) Combined analysis of Hubble and VLT photometry of the intermediate mass black hole ESO 243-49 HLX-1. Monthly Notices of the Royal Astronomical Society, 437 (2), 1208-1215. (doi:10.1093/mnras/stt1924).
Milone, A.P., Marino, A.F., Bedin, L.R., Piotto, G., Cassisi, S., Dieball, A., Anderson, J., Jerjen, H., Asplund, M., Bellini, A., Brogaard, K., Dotter, A., Giersz, M., Heggie, D.C., Knigge, C., Rich, R.M., van den Berg, M. and Buonanno, R. (2014) The M 4 Core Project with HST - II. Multiple stellar populations at the bottom of the main sequence. Monthly Notices of the Royal Astronomical Society, 439 (2), 1588-1595. (doi:10.1093/mnras/stu030).
Van de Sande, M., Scaringi, S. and Knigge, C. (2015) The rms-flux relation in accreting white dwarfs: another nova-like variable and the first dwarf nova. Monthly Notices of the Royal Astronomical Society, 448 (3), 2430-2437. (doi:10.1093/mnras/stv157).
Britt, C.T., Maccarone, T., Pretorius, M.L., Hynes, R.I., Jonker, P.G., Torres, M.A.P., Knigge, C., Johnson, C.B., Heinke, C.O., Steeghs, D., Greiss, S. and Nelemans, G. (2015) The relationship between X-ray luminosity and duty cycle for dwarf novae and their specific frequency in the inner Galaxy. Monthly Notices of the Royal Astronomical Society, 448 (4), 3455-3462. (doi:10.1093/mnras/stv256).
Matthews, J.H., Knigge, C., Long, K.S., Sim, S.A. and Higginbottom, N. (2015) The impact of accretion disc winds on the optical spectra of cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 450 (3), 3331-3344. (doi:10.1093/mnras/stv867).
Sell, P.H., Maccarone, T.J., Kotak, R., Knigge, C. and Sand, D.J. (2015) Calcium-rich gap transients: tidal detonations of white dwarfs? Monthly Notices of the Royal Astronomical Society, 450 (4), 4198-4206. (doi:10.1093/mnras/stv902).
Leigh, Nathan W.C., Georgiev, Iskren Y., Böker, Torsten, Knigge, Christian and den Brok, Mark (2015) Nuclear star cluster formation in energy-space. Monthly Notices of the Royal Astronomical Society, 451 (1), 859-869. (doi:10.1093/mnras/stv1012).
Sahman, D.I., Dhillon, V.S., Knigge, C. and Marsh, T.R. (2015) Searching for nova shells around cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 451 (3), 2863-2876. (doi:10.1093/mnras/stv1150).
Coppejans, Deanne L., Körding, Elmar G., Miller-Jones, James C. A., Rupen, Michael P., Knigge, Christian, Sivakoff, Gregory R. and Groot, Paul J. (2015) Novalike cataclysmic variables are significant radio emitters. Monthly Notices of the Royal Astronomical Society, 451 (4), 3801-3813. (doi:10.1093/mnras/stv1225).
Dieball, A., Bedin, L.R., Knigge, C., Geffer, M., Rich, R.M., Dotter, A., Richer, H. and Zurek, D. (2019) Hunting for brown dwarfs in the globular cluster M4: 2nd epoch HST NIR observations. Monthly Notices of the Royal Astronomical Society, 486 (2), 2254-2264. (doi:10.1093/mnras/stz996).
Gosnell, Natalie M., Leiner, Emily M., Mathieu, Robert D., Geller, Aaron M., Knigge, Christian, Sills, Alison, Leigh, Nathan W. C. and Cargile, Phillip (2019) Constraining mass transfer histories of blue straggler stars with COS spectroscopy of white dwarf companions. The Astrophysical Journal. (doi:10.3847/1538-4357/ab4273).
Goad, M. R., Knigge, C., Korista, K. T., Cackett, E., Horne, K., Starkey, D. A., Peterson, B. M., Rosa, G. De, Kriss, G. A., Edelson, R. and Fausnaugh, M. (2019) Anomalous behaviour of the UV-optical continuum bands in NGC 5548. Monthly Notices of the Royal Astronomical Society, 486 (4), 5362-5376. (doi:10.1093/mnras/stz1186).
Lucy, A. B., Sokoloski, J. L., Munari, U., Roy, N., Kuin, N. Paul M., Rupen, M. P., Knigge, C., Darnley, M. J., Luna, G. J. M., Somogyi, P., Valisa, P., Milani, A., Sollecchia, U. and Weston, J. H. S. (2020) Regulation of accretion by its outflow in a symbiotic star: the 2016 outflow fast state of MWC 560. Monthly Notices of the Royal Astronomical Society, 492 (3), 3107-3127. (doi:10.1093/mnras/stz3595).
Beccari, Giacomo, Ferraro, Francesco R., Dalessandro, Emanuele, Lanzoni, Barbara, Raso, Silvia, Origlia, Livia, Vesperini, Enrico, Hong, Jongsuk, Sills, Alison, Dieball, Andrea and Knigge, Christian (2019) Discovery of a double Blue Straggler sequence in M15: new insight into the core-collapse process. The Astrophysical Journal, 876 (1), [87]. (doi:10.3847/1538-4357/ab13a4).
McLeod, A. F., Scaringi, S., Soria, R., Pakull, M. W., Urquhart, R., Maccarone, T. J., Knigge, C., Miller-Jones, J. C. A., Plotkin, R. M., Motch, C., Kruijssen, J. M. D. and Schruba, A. (2019) Optical IFU spectroscopy of a bipolar microquasar jet in NGC 300. Monthly Notices of the Royal Astronomical Society, 485 (3), 3476-3485. (doi:10.1093/mnras/stz614).
McAllister, M., Littlefair, S. P., Parsons, S. G., Dhillon, V. S., Marsh, T. R., Gänsicke, B. T., Breedt, E., Copperwheat, C., Green, M. J., Knigge, C., Sahman, D. I., Dyer, Martin J., Kerry, P., Ashley, R. P., Irawati, P. and Rattanasoon, S. (2019) The evolutionary status of cataclysmic variables: Eclipse modelling of 15 systems. Monthly Notices of the Royal Astronomical Society, 486 (4), 5535-5551. (doi:10.1093/mnras/stz976).
Mangham, S. W., Knigge, C., Williams, P., Horne, Keith, Pancoast, A., Matthews, J. H., Long, K. S., Sim, S. A. and Higginbottom, N. (2019) Do reverberation mapping analyses provide an accurate picture of the broad line region? Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/stz1713).
Sindhu, N, Subramaniam, Annapurni, Jadhav, Vikrant V, Chatterjee, Sourav, Geller, Aaron M, Knigge, Christian, Leigh, Nathan, Puzia, Thomas H, Shara, Michael and Simunovic, Mirko (2019) UVIT open cluster study. I. Detection of a white dwarf companion to a blue straggler in M67: Evidence of formation through mass transfer. The Astrophysical Journal, 882 (1), [43]. (doi:10.3847/1538-4357/ab31a8).
Court, J.M.C., Scaringi, S., Rappaport, S., Zhan, Z., Littlefield, C., Segura, N. Castro, Knigge, C., Maccarone, T., Kennedy, M., Szkody, P. and Garnavich, P. (2019) The eclipsing accreting white dwarf Z Chameleontis as seen with TESS. Monthly Notices of the Royal Astronomical Society, 488 (3), 4149-4160. (doi:10.1093/mnras/stz2015).
Sindhu, N, Subramaniam, Annapurni, Geller, Aaron M, Jadhav, Vikrant, Knigge, Christian, Simunovic, Mirko, Leigh, Nathan, Shara, Michael and Puzia, Thomas H (2019) Detection of white dwarf companions to blue straggler stars from UVIT observations of M67. In, IAU Symposium No. 351 proceedings - Star Clusters: From the Milky Way to the Early Universe, 2019. (HASH(0xd14e928), 351) Star Clusters: from the Milky Way to the Early Universe (27/05/19 - 31/05/19) pp. 1-4. (doi:10.1017/S1743921319006975).
Castro, A., Altamirano, D., Michel, R., Gandhi, P., Santisteban, J. V. Hernández, Echevarría, J., Tejada, C., Knigge, C., Sierra, G., Colorado, E., Hernández-Landa, J., Whiter, D., Middleton, M., García, B., Guisa, G. and Castro-Segura, N. (2019) OPTICAM: A triple-camera optical system designed to explore the fastest timescales in Astronomy. Revista Mexicana de Astronomía y Astrofísica, 55, 1-14. (doi:10.22201/ia.01851101p.2019.55.02.20).
Rao, Anjali, Gandhi, Poshak, Knigge, Christian, Paice, John A., Leigh, Nathan W. C. and Boubert, Douglas (2019) Kinematic study of the association Cyg OB3 with Gaia DR2. Monthly Notices of the Royal Astronomical Society. (In Press)
Pala, A.F., Gänsicke, B.T., Breedt, E., Knigge, C., Hermes, J.J., Fusillo, N.P. Gentile, Hollands, M.A., Naylor, T., Pelisoli, I., Schreiber, M.R., Toonen, S., Aungwerojwit, A., Cukanovaite, E., Dennihy, E., Manser, C.J., Pretorius, M.L., Scaringi, S. and Toloza, O. (2020) A volume-limited sample of cataclysmic variables from Gaia DR2: space density and population properties. Monthly Notices of the Royal Astronomical Society, 494 (3), 3799-3827. (doi:10.1093/mnras/staa764).
Miniutti, G., Saxton, R. D., Giustini, M., Alexander, K. D., Fender, R. P., Heywood, I., Monageng, I., Coriat, M., Tzioumis, A. K., Read, A. M., Knigge, C., Gandhi, P., Pretorius, M. L. and Agís-González, B. (2019) Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus. Nature, 573, 381-384. (doi:10.1038/s41586-019-1556-x).
Parkinson, Edward J., Knigge, Christian, Long, Knox S., Matthews, James H., Higginbottom, Nick, Sim, Stuart A. and Hewitt, Henrietta A. (2020) Accretion disc winds in tidal disruption events: ultraviolet spectral lines as orientation indicators: ultraviolet spectral lines as orientation indicators. Monthly Notices of the Royal Astronomical Society, 494 (4), 4914-4929. (doi:10.1093/mnras/staa1060).
Higginbottom, Nick, Knigge, Christian, Sim, Stuart A., Long, Knox S., Matthews, James H., Hewitt, Henrietta A., Parkinson, Edward J. and Mangham, Sam W. (2020) Thermal and radiation driving can produce observable disk winds in hard-state X-ray binaries. Monthly Notices of the Royal Astronomical Society, 492 (4), 5271-5279. (doi:10.1093/mnras/staa209).
Hameury, J. -M., Knigge, C., Lasota, J. -P., Hambsch, F. -J. and James, R. (2020) Modelling hystereses observed during dwarf-nova outbursts. Astronomy & Astrophysics, 636, [A1]. (doi:10.1051/0004-6361/202037631).
Matthews, James H., Knigge, Christian, Higginbottom, Nick, Long, Knox S., Sim, Stuart A., Mangham, Samuel W., Parkinson, Edward J. and Hewitt, Henrietta A. (2020) Stratified disc wind models for the AGN broad-line region: ultraviolet, optical, and X-ray properties. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/staa136).
Hewitt, D. M., Pretorius, M. L., Woudt, P. A., Tremou, E., Miller-Jones, J. C. A., Knigge, C., Segura, N. Castro, Williams, D. R. A., Fender, R. P., Armstrong, R., Groot, P., Heywood, I., Horesh, A., Horst, A. J. van der, Koerding, E., McBride, V. A., Mooley, K. P., Rowlinson, A., Stappers, B. and Wijers, R. A. M. J. (2020) A MeerKAT survey of nearby novalike cataclysmic variables. Monthly Notices of the Royal Astronomical Society, 496 (3), 2542–2557. (doi:10.1093/mnras/staa1747).
Buisson, D. J. K., Altamirano, D., Trigo, M. Díaz, Mendez, M., Padilla, M. Armas, Segura, N. Castro, Degenaar, N. D., Eijnden, J. van den, Fogantini, F. A., Gandhi, P., Knigge, C., Muñoz-Darias, T., Arabacı, M. Özbey and Vincentelli, F. M. (2020) Soft X-ray emission lines in the X-ray binary Swift J1858.6-0814 observed with XMM-Newton-RGS: disc atmosphere or wind? Monthly Notices of the Royal Astronomical Society: Letters. (doi:10.1093/mnras/staa2258).
Segura, N. Castro, Knigge, C., Acosta-Pulido, J. A., Altamirano, D., Palacio, S. del, Santisteban, J. V. Hernandez, Pahari, M., Rodriguez-Gil, P., Belardi, C., Buckley, D. A. H., Burleigh, M. R., Childress, M., Fender, R. P., Hewitt, D. M., James, D. J., Kuhn, R. B., Kuin, N. P. M., Pepper, J., Ponomareva, A. A., Pretorius, M. L., Rodríguez, J. E., Stassun, K. G., Williams, D. R. A. and Woudt, P. A. (2020) Bow-shocks, nova shells, disc winds and tilted discs: the Nova-like V341 ara has it all. Monthly Notices of the Royal Astronomical Society. (In Press)
Coppejans, Deanne L. and Knigge, Christian (2020) The case for jets in cataclysmic variables. New Astronomy Reviews, 89, [101540]. (doi:10.1016/j.newar.2020.101540).
Williams, P. R. , (2020) Space telescope and optical reverberation mapping project. XII. Broad-line region modeling of NGC 5548. The Astrophysical Journal, 902 (1), [74]. (doi:10.3847/1538-4357/abbad7).
Pretorius, M. L., Hewitt, D. M., Woudt, P. A., Fender, R. P., Heywood, I., Knigge, C., Miller-Jones, J. C. A., Buckley, D. A. H., Worters, H. L., Potter, S. B. and Williams, D. R. A. (2021) Radio and optical observations of the possible AE Aqr twin, LAMOST J024048.51+195226.9. Monthly Notice of the Royal Astronomical Society, 503 (3), 1-6. (doi:10.1093/mnras/stab498).
Muñoz-Darias, T., Armas Padilla, M., Jiménez-Ibarra, F., Panizo-Espinar, G., Casares, J., Altamirano, D., Buisson, D. J. K., Castro Segura, N., Cúneo, V. A., Degenaar, N., Fogantini, F. A., Knigge, C., Mata Sánchez, D., Özbey Arabaci, M., Sánchez-Sierras, J., Torres, M. A. P., van den Eijnden, J. and Vincentelli, F. M. (2020) The changing-look optical wind of the flaring X-ray transient swift J1858.6-0814. The Astrophysical Journal Letters, 893 (1), [L19]. (doi:10.3847/2041-8213/ab8381).
Buisson, D. J. K., Altamirano, D., Padilla, M. Armas, Arzoumanian, Z., Bult, P., Segura, N. Castro, Charles, P. A., Degenaar, N., Trigo, M. Díaz, Eijnden, J. van den, Fogantini, F., Gandhi, P., Gendreau, K., Hare, J., Homan, J., Knigge, C., Malacaria, C., Mendez, M., Darias, T. Muñoz, Ng, M., Arabacı, M. Özbey, Remillard, R., Strohmayer, T. E., Tombesi, F., Tomsick, J. A., Vincentelli, F. and Walton, D. J. (2021) Dips and eclipses in the X-ray binary Swift J1858.6-0814 observed with NICER. Monthly Notices of the Royal Astronomical Society, 503 (4), 5600–5610. (doi:10.1093/mnras/stab863).
Fratta, M., Scaringi, S., Drew, J. E., Monguio, M., Knigge, C., Maccarone, T. J., Court, J. M. C., Ilkiewicz, K. A., Pala, A. F., Gandhi, P. and Gaensicke, B. (2021) Population-based identification of Hα-excess sources in the Gaia DR2 and IPHAS catalogues. Monthly Notices of the Royal Astronomical Society, 505 (1), 1135–1152. (doi:10.1093/mnras/stab1258).
Hodgkin, S. T., Harrison, D. L., Breedt, E., Wevers, T., Rixon, G., Delgado, A., Yoldas, A., Kostrzewa-Rutkowska, Z., Wyrzykowski, Ł., Leeuwen, M. van, Blagorodnova, N., Campbell, H., Eappachen, D., Fraser, M., Ihanec, N., Koposov, S. E., Kruszyńska, K., Marton, G., Rybicki, K. A., Brown, A. G. A., Burgess, P. W., Busso, G., Cowell, S., Angeli, F. De, Diener, C., Evans, D. W., Gilmore, G., Holland, G., Jonker, P. G., Leeuwen, F. van, Mignard, F., Osborne, P. J., Portell, J., Prusti, T., Richards, P. J., Riello, M., Seabroke, G. M., Walton, N. A., Ábrahám, Péter, Altavilla, G., Baker, S. G., Bastian, U., O'Brien, P., Bruijne, J. de, Butterley, T., Carrasco, J. M., Castañeda, J., Clark, J. S., Clementini, G., Copperwheat, C. M., Cropper, M., Damljanovic, G., Davidson, M., Davis, C. J., Dennefeld, M., Dhillon, V. S., Dolding, C., Dominik, M., Esquej, P., Eyer, L., Fabricius, C., Fridman, M., Froebrich, D., Garralda, N., Gomboc, A., González-Vidal, J. J., Guerra, R., Hambly, N. C., Hardy, L. K., Holl, B., Hourihane, A., Japelj, J., Kann, D. A., Kiss, C., Knigge, C., Kolb, U., Komossa, S., Kóspál, Á., Kovács, G., Kun, M., Leto, G., Lewis, F., Littlefair, S. P., Mahabal, A. A., Mundell, C. G., Nagy, Z., Padeletti, D., Palaversa, L., Pigulski, A., Pretorius, M. L., Reeven, W. van, Ribeiro, V. A. R. M., Roelens, M., Rowell, N., Schartel, N., Scholz, A., Schwope, A., Sipőcz, B. M., Smartt, S. J., Smith, M. D., Serraller, I., Steeghs, D., Sullivan, M., Szabados, L., Szegedi-Elek, E., Tisserand, P., Tomasella, L., Velzen, S. van, Whitelock, P. A, Wilson, R. W. and Young, D. R. (2021) Gaia photometric science alerts. Monthly Notices of the Royal Astronomical Society.
Aydi, E., Sokolovsky, K. V., Bright, J. S., Tremou, E., Nyamai, M. M., Strader, J., Chomiuk, L., Myers, G., Hambsch, F-J, Buckley, D. A. H., Walter, F. M., Mróz, P., Vallely, P. J., Geballe, T. R., Gehrz, R. D., Fender, R. P., Gromadzki, M., Kawash, A., Knigge, C., Mukai, K., Munari, U., Orio, M., Ribeiro, V. A. R. M., Sokoloski, J. L., Starrfield, S., Udalski, A. and Woudt, P. A. (2021) The 2019 outburst of the 2005 classical nova V1047 Cen: a record breaking dwarf nova outburst or a new phenomenon? Monthly Notices of the Royal Astronomical Society.
Inight, keith, Gaensicke, Boris, Blondel, Dominic, Boyd, David, Ashley, Richard, Knigge, Christian, Long, Knox, Marsh, Tom, McCleery, Jack, Scaringi, Simone, Steeghs, Danny, Vanmunster, Tonny and Wheatley, Peter (2021) ASAS J071404+7004.3 -- a close, bright nova-like with gusty winds. Monthly Notices of the Royal Astronomical Society.
Scaringi, S., Martino, D. de, Buckley, D. H., Groot, P. J., Knigge, C., Fratta, M., Ilkiewicz, K., Littlefield, C. and Papitto, A. (2021) An accreting white dwarf displaying fast transitional mode switching. Nature Astronomy. (doi:10.1038/s41550-021-01494-x).
Parkinson, Edward J., Knigge, Christian, Matthews, James H., Long, Knox S., Higginbottom, Nick, Sim, Stuart A. and Mangham, Samuel W. (2022) Optical line spectra of tidal disruption events from reprocessing in optically thick outflows. Monthly Notices of the Royal Astronomical Society, 510 (4), 5426-5443. (doi:10.1093/mnras/stac027).
Middleton, Matthew, Higginbottom, Nicholas, Knigge, Christian, Khan, Norman and Wiktorowicz, Grzegorz (2021) Thermally driven winds in ultraluminous X-ray sources. Monthly Notices of the Royal Astronomical Society, 1119-1126. (doi:10.1093/mnras/stab2991).
Mansfield, Santana, Dieball, Andrea, Kroupa, Pavel, Knigge, Christian, Zurek, David R., Shara, Michael and Long, Knox S. (2022) Far-ultraviolet investigation into the galactic globular cluster M30 (NGC 7099): I. Photometry and radial distributions. Monthly Notices of the Royal Astronomical Society. (doi:10.1093/mnras/stac242).
Segura, N. Castro, Knigge, C., Long, K. S., Altamirano, D., Padilla, M. Armas, Bailyn, C., Buckley, D. A. H., Buisson, D. J. K., Casares, J., Charles, P., Combi, J. A., Cúneo, V. A., Degenaar, N. D., Palacio, S. del, Trigo, M. Díaz, Fender, R., Gandhi, P., Georganti, M., Gutiérrez, C., Santisteban, J. V. Hernandez, Jiménez-Ibarra, F., Matthews, J., Méndez, M., Middleton, M., Muñoz-Darias, T., Arabacı, M. Özbey, Pahari, M., Rhodes, L., Russell, T. D., Scaringi, S., Eijnden, J. van den, Vasilopoulos, G., Vincentelli, F. M. and Wiseman, P. (2022) A persistent ultraviolet outflow from an accreting neutron star binary transient. Nature, 603 (7899), 52-57. (doi:10.1038/s41586-021-04324-2).
Patterson, Joseph, Kemp, Jonathan, Monard, Berto, Myers, Gordon, De Miguel, Enrique, Hambsch, Franz-josef, Warhurst, Paul, Rea, Robert, Dvorak, Shawn, Menzies, Kenneth, Vanmunster, Tonny, Roberts, George, Campbell, Tut, Starkey, Donn, Ulowetz, Joseph, Rock, John, Seargeant, Jim, Boardman, James, Lemay, Damien, Cejudo, David and Knigge, Christian (2022) IM normae: The death spiral of a cataclysmic variable? The Astrophysical Journal, 924 (1), 27, [27]. (doi:10.3847/1538-4357/abec87).
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Email: C.Knigge@soton.ac.uk