78 citations · 204 across the 5 of their papers we have counts for
11 papers
The Role of Planet Accretion in Creating the Next Generation of Red Giant Rapid Rotators
Joleen K. Carlberg, Steven R. Majewski, Phil Arras
Rapid rotation in field red giant stars is a relatively rare but well-studied phenomenon; here we investigate the potential role of planet accretion in spinning up these stars. Usi…
Thermal Tides in Short Period Exoplanets
Phil Arras, Aristotle Socrates
Time-dependent insolation in a planetary atmosphere induces a mass quadrupole upon which the stellar tidal acceleration can exert a force. This "thermal tide" force can give rise t…
Non-dissipative tidal synchronization in accreting binary white dwarf systems
Etienne Racine, E. Sterl Phinney, Phil Arras
We study a non-dissipative hydrodynamical mechanism that can stabilize the spin of the accretor in an ultra-compact double white dwarf binary. This novel synchronization mechanism…
Pulsational Instabilities in Accreting White Dwarfs
Phil Arras, Dean M. Townsley, Lars Bildsten
(Abridged) The Cataclysmic Variable (CV) population harbors a diverse range of donor stars and accreting white dwarfs (WDs). A range of WD masses is expected, from low mass Helium…
Quasi-Periodic Oscillations from Magnetorotational Turbulence
Phil Arras, Omer Blaes, Neal J. Turner
Quasi-periodic oscillations (QPOs) in the X-ray lightcurves of accreting neutron star and black hole binaries have been widely interpreted as being due to standing wave modes in ac…
Thermal Structure and Radius Evolution of Irradiated Gas Giant Planets
Phil Arras, Lars Bildsten
We consider the thermal structure and radii of strongly irradiated gas giant planets over a range in mass and irradiating flux. The cooling rate of the planet is sensitive to the s…