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A New Model of Roche-lobe Overflow for Short-Period Gaseous Planets and Binary Stars
Brian Jackson, Phil Arras, Kaloyan Penev +2
Some close-in gaseous exoplanets are nearly in Roche-lobe contact, and previous studies show tidal decay can drive hot Jupiters into contact during the main sequence of their host…
Common envelope ejection in massive binary stars - Implications for the progenitors of GW150914 and GW151226
M. U. Kruckow, T. M. Tauris, N. Langer +3
The recently detected gravitational wave signals (GW150914 and GW151226) of the merger event of a pair of relatively massive stellar-mass black holes (BHs) calls for an investigati…
Asteroseismic test of rotational mixing in low-mass white dwarfs
A. G. Istrate, G. Fontaine, A. Gianninas +4
We exploit the recent discovery of pulsations in mixed-atmosphere (He/H), extremely low-mass white dwarf precursors (ELM proto-WDs) to test the proposition that rotational mixing i…
Models of low-mass helium white dwarfs including gravitational settling, thermal and chemical diffusion, and rotational mixing
Alina Istrate, Pablo Marchant, Thomas M. Tauris +3
A large number of extremely low-mass helium white dwarfs (ELM WDs) have been discovered in recent years. The majority of them are found in close binary systems suggesting they are…
A new route towards merging massive black holes
Pablo Marchant, Norbert Langer, Philipp Podsiadlowski +2
Recent advances in gravitational-wave astronomy make the direct detection of gravitational waves from the merger of two stellar-mass compact objects a realistic prospect. Evolution…