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TeamCOMPAS / COMPAS

COMPAS rapid binary population synthesis code
http://compas.science
MIT License
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Self-stripping for low mass single EAGB stars leads to NS formation #699

Closed ilyamandel closed 3 years ago

ilyamandel commented 3 years ago

A single 6.0-solar mass star at Z=0.001 can lose its envelope as an EAGB star in code version 02.25.07 and ultimately form a neutron star. This may be connected to self-stripping in 1 or 2 time steps due to very high mass loss rates (>2e-4 M_\odot/yr) predicted by BaseStar::CalculateMassLossRateOB, which throws warnings that "Winds being used at high temperature". [Note that the same warnings are thrown in the previous version 02.25.06, though there, the star does not strip until it reaches TPAGB due to the reduced EAGB luminosity; so it may be a wind mass loss rate implementation issue.]

ilyamandel commented 3 years ago

Issue resolved once EAGB luminosity was reverted to using a prescription based on CO core mass in v. 02.25.09.