2.4k citations · 15.7k across the 65 of their papers we have counts for
8 papers · 1 filter
The OmegaWhite survey for short-period variable stars - V. Discovery of an ultracompact hot subdwarf binary with a compact companion in a 44 minute orbit
T. Kupfer, G. Ramsay, J. van Roestel +20
We report the discovery of the ultracompact hot subdwarf (sdOB) binary OW J074106.0-294811.0 with an orbital period of P min, making it the…
Fast and Luminous Transients from the Explosions of Long Lived Massive White Dwarf Merger Remnants
Jared Brooks, Josiah Schwab, Lars Bildsten +4
We study the evolution and final outcome of long-lived ( years) remnants from the merger of a He white dwarf (WD) with a more massive C/O or O/Ne WD. Using Modules f…
HD 49798: Its History of Binary Interaction and Future Evolution
Jared Brooks, Thomas Kupfer, Lars Bildsten
The bright subdwarf-O star (sdO), HD 49798, is in a 1.55 day orbit with a compact companion that is spinning at 13.2 seconds. Using the measurements of the effective temperature ($…
Accretion-Induced Collapse From Helium Star + White Dwarf Binaries
Jared Brooks, Josiah Schwab, Lars Bildsten +2
Accretion-induced collapse (AIC) occurs when an O/Ne white dwarf (WD) grows to nearly the Chandrasekhar mass (), reaching central densities that trigger electron captur…
PTF1 J082340.04+081936.5: A hot subdwarf B star with a low mass white dwarf companion in an 87 minute orbit
Thomas Kupfer, Jan van Roestel, Jared Brooks +19
We present the discovery of the hot subdwarf B star (sdB) binary PTF1 J082340.04+081936.5. The system has an orbital period P min (0.060761584(10) days), ma…
Convection Destroys the Core/Mantle Structure in Hybrid C/O/Ne White Dwarfs
Jared Brooks, Josiah Schwab, Lars Bildsten +2
A hybrid C/O/Ne white dwarf (WD) -- an unburned C/O core surrounded by an O/Ne/Na mantle -- can be formed if the carbon flame is quenched in a super-AGB (SAGB) star or white dwarf…