Bibcode
Hardy, L. K.; McAllister, M. J.; Dhillon, V. S.; Littlefair, S. P.; Bours, M. C. P.; Breedt, E.; Butterley, T.; Chakpor, A.; Irawati, P.; Kerry, P.; Marsh, T. R.; Parsons, S. G.; Savoury, C. D. J.; Wilson, R. W.; Woudt, P. A.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 465, Issue 4, p.4968-4984
Advertised on:
3
2017
Citations
26
Refereed citations
25
Description
We present new time-resolved photometry of 74 cataclysmic variables
(CVs), 47 of which are eclipsing. Thirteen of these eclipsing systems
are newly discovered. For all 47 eclipsing systems, we show high cadence
(1-20 s) light curves obtained with the high-speed cameras ULTRACAM and
ULTRASPEC. We provide new or refined ephemerides, and supply mid-eclipse
times for all observed eclipses. We assess the potential for light-curve
modelling of all 47 eclipsing systems to determine their system
parameters, finding 20 systems that appear to be suitable for future
study. Systems of particular interest include V713 Cep, in which we
observed a temporary switching-off of accretion; and ASASSN-14mv and
CSS111019:233313-155744, which both have orbital periods well below the
CV period minimum. The short orbital periods and light-curve shapes
suggest that they may be double degenerate (AM CVn) systems or CVs with
evolved donor stars.
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