5 papers
ZTF J021804.16+071152.93: a dead cataclysmic variable and potential solution to the missing period bouncers
S. G. Parsons, A. J. Brown, S. L. Casewell +22
It is predicted that half or more of all cataclysmic variables (CVs) should have evolved past the period minimum and now exist as so-called "period bouncers" where a white dwarf sh…
An energetic dirty fireball detected in soft X-rays
C. -Y. Dai, J. Quirola-Vásquez, Y. -H. Wang +76
The collapse of massive stars drives explosions that power relativistic fireballs. If only a small amount of matter is entrained, such clean fireballs can expand with Lorentz facto…
Photometric masses for long period CVs: the case study of CSS131106
M. Das, S. P. Littlefair, S. G. Parsons +15
We present high-speed photometry of the eclipsing cataclysmic variable CSS131106 J052412+004148. We determine the system parameters by modelling the eclipse lightcurve using the ph…
Long-term eclipse time variations in white dwarf binaries
Amalie Yates, S. G. Parsons, A. J. Brown +15
The overwhelming majority of eclipsing white dwarf (WD) binary systems show quasi-periodic variations in eclipse timings on many year timescales. Currently, the mechanism behind th…
Calibrating the clock of JWST
A. W. Shaw, D. L. Kaplan, P. Gandhi +19
JWST, despite not being designed to observe astrophysical phenomena that vary on rapid time scales, can be an unparalleled tool for such studies. If timing systematics can be contr…