5 papers · 1 filter
V407 Vul: a triple star system with an AM CVn detectable by gravitational wave observatories
James Munday, Antonio C. Rodriguez, Nicole Reindl +23
The AM CVn class includes mass transferring, ultra-compact double white dwarf binaries with orbital periods on the timescale of minutes. A long-standing puzzle is that none of the…
Mode Instability and a Massive, Isolated Outburst in the Pulsating White Dwarf GD 1212
J. J. Hermes, Keaton J. Bell, Andrew H. Dublin +8
We analyze a large brightening event that lasted for roughly half a day in the pulsating hydrogen-atmosphere white dwarf GD 1212 during K2 Campaign 12 of the extended Kepler missio…
Improved Stark Broadened Profiles for Neutral Helium Lines Using Computer Simulations
Patrick Tremblay, Alain Beauchamp, Pierre Bergeron +1
The study of Stark broadening of neutral helium lines, despite significant advances over recent decades, has not led to updated large grids of helium line profiles relevant to the…
J-PLUS: Understanding outlier white dwarfs in the third data release via dimensionality reduction
C. López-Sanjuan, P. -E. Tremblay, A. del Pino +20
We present the white dwarf catalog derived from the third data release of the Javalambre Photometric Local Universe Survey (J-PLUS DR3), which covers 3284 deg2 using 12 optical fil…
J-PLUS: The fraction of calcium white dwarfs along the cooling sequence
C. López-Sanjuan, P. -E. Tremblay, M. W. O'Brien +24
We used the Javalambre Photometric Local Universe Survey (J-PLUS) DR2 photometry in twelve optical bands over 2176 deg2 to estimate the fraction of white dwarfs with presence of Ca…