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Arresting Accretion Torques with Gravitational Radiation
Lars Bildsten
Recent theoretical work has made it plausible for neutron stars (NSs) to lose angular momentum via gravitational radiation on long timescales (around Myrs) while actively accreting…
Sinking of Ne-22 in Liquid White Dwarf Interiors
Christopher J. Deloye, Lars Bildsten
We assess the impact of the trace element Ne-22 on the cooling and seismology of a liquid C/O white dwarf (WD). Due to this element's neutron excess, it sinks towards the interior…
Internal Conditions of Accreting White Dwarfs
Lars Bildsten, Dean M. Townsley
We explain the physics of compressional heating of the deep interior of an accreting white dwarf (WD) at accretion rates low enough so that the accumulated hydrogen burns unstably…
White Dwarf Colors in Low Accretion Rate Binaries
Dean M. Townsley, Lars Bildsten
Our recent theoretical work (Townsley and Bildsten 2002) on the thermal state of white dwarfs (WDs) in low mass transfer rate binaries allows us to predict the broadband colors of…
Hot White Dwarf Donors in Ultracompact X-Ray Binaries
Lars Bildsten
The discovery of two accreting millisecond X-ray pulsars in binaries with 43 minute orbital periods allows for a new probe of the donor's structure. For XTE J1751-305, only a hot w…
Gravitational Settling of ^{22}Ne in Liquid White Dwarf Interiors--Cooling and Seismological Effects
Christopher J. Deloye, Lars Bildsten
We assess the impact of the trace element ^{22}Ne on the cooling and seismology of a liquid C/O white dwarf (WD). Due to this elements' neutron excess, it sinks towards the interio…