83 citations · 284 across the 9 of their papers we have counts for
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Hunting For Eclipses: High Speed Observations of Cataclysmic Variables
Liam K Hardy, Martin J McAllister, Vik S Dhillon +12
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 syste…
PHL 1445: An eclipsing cataclysmic variable with a substellar donor near the period minimum
M. J. McAllister, S. P. Littlefair, I. Baraffe +14
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 ca…
Discovery of ZZ Cetis in detached white dwarf plus main-sequence binaries
S. Pyrzas, B. T. Gaensicke, J. J. Hermes +12
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 cata…
A Radial Velocity Study of CTCV J1300-3052
C. D. J. Savoury, S. P. Littlefair, T. R. Marsh +4
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 radia…
A J-band detection of the donor star in the dwarf nova OY Carinae, and an optical detection of its `iron curtain'
C. M. Copperwheat, T. R. Marsh, S. G. Parsons +6
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…
A precision study of two eclipsing white dwarf plus M dwarf binaries
S. G. Parsons, T. R. Marsh, B. T. Gänsicke +16
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…
The first observation of optical pulsations from a soft gamma repeater: SGR 0501+4516
V. S. Dhillon, T. R. Marsh, S. P. Littlefair +9
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 disc…
Cataclysmic Variables below the Period Gap: Mass Determinations of 14 Eclipsing Systems
C. D. J. Savoury, S. P. Littlefair, V. S. Dhillon +6
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…
V391 Peg: identification of the two main pulsation modes from ULTRACAM u'g'r' amplitudes
Roberto Silvotti, Suzanna Randall, Vik S. Dhillon +5
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 o…