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Tidally-driven Roche-Lobe Overflow of Hot Jupiters with MESA
Francesca Valsecchi, Saul Rappaport, Frederic A. Rasio +2
Many exoplanets have now been detected in orbits with ultra-short periods, very close to the Roche limit. Building upon our previous work, we study the possibility that mass loss t…
Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
Bill Paxton, Pablo Marchant, Josiah Schwab +10
We substantially update the capabilities of the open-source software instrument Modules for Experiments in Stellar Astrophysics (MESA). MESA can now simultaneously evolve an intera…
AM Canum Venaticorum Progenitors with Helium Star Donors and the resultant Explosions
Jared Brooks, Lars Bildsten, Pablo Marchant +1
We explore the outcome of mass transfer via Roche lobe overflow (RLOF) of pure helium burning stars in close binaries with white dwarfs (WDs). The…
Testing eccentricity pumping mechanisms to model eccentric long period sdB binaries with MESA
Joris Vos, Roy Østensen, Pablo Marchant +1
Hot subdwarf-B stars in long-period binaries are found to be on eccentric orbits, even though current binary-evolution theory predicts those objects to be circularised before the o…