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The Fate of Exoplanets and the Red Giant Rapid Rotator Connection
Joleen K. Carlberg, Steven R. Majewski, Phil Arras +3
We have computed the fate of exoplanet companions around main sequence stars to explore the frequency of planet ingestion by their host stars during the red giant branch evolution.…
Hot Jupiter Magnetospheres
George B. Trammell, Phil Arras, Zhi-Yun Li
(Abridged) The upper atmospheres of close-in gas giant exoplanets are subjected to intense heating/tidal forces from their parent stars. Atomic/ionized hydrogen (H) layers are suff…
Diffusive Nuclear Burning of Helium on Neutron Stars
Philip Chang, Lars Bildsten, Phil Arras
Diffusive nuclear burning of H by an underlying material capable of capturing protons can readily consume H from the surface of neutron stars (NSs) during their early cooling histo…
Pulsations in Hydrogen Burning Low Mass Helium White Dwarfs
Justin D. R. Steinfadt, Lars Bildsten, Phil Arras
Helium core white dwarfs (WDs) with mass M <~ 0.20 Msun undergo several Gyrs of stable hydrogen burning as they evolve. We show that in a certain range of WD and hydrogen envelope…