Zobrazeno 1 - 9
of 9
pro vyhledávání: '"C. D. J. Savoury"'
Autor:
Patrick Woudt, M. J. McAllister, Steven G. Parsons, Madelon C. P. Bours, Richard Wilson, Puji Irawati, S. P. Littlefair, T. R. Marsh, L. K. Hardy, Timothy Butterley, V. S. Dhillon, Elmé Breedt, A. Chakpor, C. D. J. Savoury, P. Kerry
Publikováno v:
Monthly notices of the Royal Astronomical Society, 2017, Vol.465(4), pp.4968-4984 [Peer Reviewed Journal]
We present new time-resolved photometry of 74 cataclysmic variables (CVs), 47 of which are eclipsing. 13 of these eclipsing systems are newly discovered. For all 47 eclipsing systems we show high cadence (1-20 seconds) light curves obtained with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f84fa12bc4289503b58a1bbdaeb2547
https://doi.org/10.1093/mnras/stw3051
https://doi.org/10.1093/mnras/stw3051
Autor:
C. D. J. Savoury, J. J. Hermes, Joao Bento, S. Pyrzas, S. P. Littlefair, Chris M. Copperwheat, T. R. Marsh, S. C. C. Barros, Elmé Breedt, Boris T. Gänsicke, Matthias R. Schreiber, V. S. Dhillon, Steven G. Parsons, P. Kerry, Alberto Rebassa-Mansergas
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 447:691-697
We present the first results of a dedicated search for pulsating white dwarfs (WDs) in detached white dwarf plus main-sequence binaries. Candidate systems were selected from a catalogue of WD+MS binaries, based on the surface gravities and effective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e18f770f3ef916b8cb38e88998bf2ab
https://doi.org/10.1093/mnras/stu2412
https://doi.org/10.1093/mnras/stu2412
Autor:
C. D. J. Savoury, Chris M. Copperwheat, V. S. Dhillon, Tom Marsh, S. P. Littlefair, Danny Steeghs, Steven G. Parsons
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 422:469-477
We present time-resolved spectroscopy of the eclipsing, short period cataclysmic variable CTCV J1300-3052. Using absorption features from the secondary star, we determine the radial velocity semi-amplitude of the secondary star to be K2 = 378 \pm 6 k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25df1069e47e9df9cdae7c69700f0e78
https://doi.org/10.1111/j.1365-2966.2012.20625.x
https://doi.org/10.1111/j.1365-2966.2012.20625.x
Autor:
Chris M. Copperwheat, T. R. Marsh, V. S. Dhillon, S. P. Littlefair, Steven G. Parsons, R. D. G. Hickman, C. D. J. Savoury, P. Kerry, Boris T. Gaensicke
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 415:2025-2041
We present high-speed, three-colour photometry of the eclipsing cataclysmic variables CTCV 1300, CTCV 2354 and SDSS 1152. All three systems are below the observed "period gap" for cataclysmic variables. For each system we determine the system paramet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31011da42a0f3c4a01c59963fe15ea72
https://doi.org/10.1111/j.1365-2966.2011.18707.x
https://doi.org/10.1111/j.1365-2966.2011.18707.x
Autor:
Klaas Wiersema, Tom Marsh, Nial R. Tanvir, Nanda Rea, P. Kerry, V. S. Dhillon, Roberto Turolla, Chris M. Copperwheat, Andrew J. Levan, S. P. Littlefair, C. D. J. Savoury, R. D. G. Hickman
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters. 416:L16-L20
We present high-speed optical photometry of the soft gamma repeater SGR 0501+4516, obtained with ULTRACAM on two consecutive nights approximately 4 months after the source was discovered via its gamma-ray bursts. We detect SGR 0501+4516 at a magnitud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3456e78fe9023040edf222fe8b47db93
https://doi.org/10.1111/j.1745-3933.2011.01088.x
https://doi.org/10.1111/j.1745-3933.2011.01088.x
Autor:
Gilles Fontaine, Suzanna K. Randall, C. D. J. Savoury, Pierre Brassard, V. S. Dhillon, Sonja Schuh, Roberto Silvotti, Tom Marsh
Publikováno v:
Astronomische Nachrichten. 331:1034-1037
V391 Peg (HS2201+2610) is an extreme horizontal branch subdwarf B (sdB) star, it is an hybrid pulsator showing p- and g-mode oscillations, and hosts a 3.2/sini M_Jup planet at an orbital distance of about 1.7 AU. In order to improve the characterizat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2f5302ea4bf081f6fe79c5ea197d8cd
https://doi.org/10.1002/asna.201011451
https://doi.org/10.1002/asna.201011451
Autor:
Joao Bento, J. W. Rostron, Elmé Breedt, Steven G. Parsons, Madelon C. P. Bours, C. D. J. Savoury, S. P. Littlefair, V. S. Dhillon, T. R. Marsh, R. L. Tunnicliffe, P. Kerry, Isabelle Baraffe, D. I. Sahman, Chris M. Copperwheat, M. J. McAllister, L. K. Hardy, J. Bochinski
We present high-speed, three-colour photometry of the eclipsing dwarf nova PHL 1445, which, with an orbital period of 76.3 min, lies just below the period minimum of ~82 min for cataclysmic variable stars. Averaging four eclipses reveals resolved ecl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4cc134f62f08635363fe8625d1920d7
http://wrap.warwick.ac.uk/83091/1/WRAP_MNRAS-2015-McAllister-114-25.pdf
http://wrap.warwick.ac.uk/83091/1/WRAP_MNRAS-2015-McAllister-114-25.pdf
Autor:
Chris M. Copperwheat, Tom Marsh, Elmé Breedt, V. S. Dhillon, Steven G. Parsons, S. P. Littlefair, R. D. G. Hickman, Danny Steeghs, C. D. J. Savoury
Publikováno v:
Monthly Notices of the Royal Astronomical Society.
Purely photometric models can be used to determine the binary parameters of eclipsing cataclysmic variables with a high degree of precision. However, the photometric method relies on a number of assumptions, and to date there have been very few indep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d86c19995b1d239351b22a4fea025c42
https://doi.org/10.1111/j.1365-2966.2011.20282.x
https://doi.org/10.1111/j.1365-2966.2011.20282.x
Autor:
S. P. Littlefair, R. D. G. Hickman, Axel Schwope, Chris M. Copperwheat, C. D. J. Savoury, Claus Tappert, Linda Schmidtobreick, A. Nebot Gomez-Moran, V. S. Dhillon, Matthew R. Burleigh, S. Pyrzas, Alberto Rebassa-Mansergas, Steven G. Parsons, Matthias R. Schreiber, D. Koester, Tom Marsh, P. R. Steele, P. Kerry, Boris T. Gänsicke
Publikováno v:
Monthly Notices of the Royal Astronomical Society.
We use a combination of X-shooter spectroscopy, ULTRACAM high-speed photometry and SOFI near-infrared photometry to measure the masses and radii of both components of the eclipsing post common envelope binaries SDSS J1212-0123 and GK Vir. For both sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e149b5c382d7b6e7319f7911158dd84
https://doi.org/10.1111/j.1365-2966.2011.20251.x
https://doi.org/10.1111/j.1365-2966.2011.20251.x