Stellar adiabatic mass loss model and applications

Abstract

Roche-lobe overflow and common envelope evolution are very important in binary evolution, which is believed to be the main evolutionary channel to hot subdwarf stars. The details of these processes are difficult to model, but adiabatic expansion provides an excellent approximation to the structure of a donor star undergoing dynamical time scale mass transfer. We can use this model to study the responses of stars of various masses and evolutionary stages as potential donor stars, with the urgent goal of obtaining more accurate stability criteria for dynamical mass transfer in binary population synthesis studies. As examples, we describe here several models with the initial masses equal to 1 Msun and 10 Msun, and identify potential limitations to the use of our results for giant-branch stars.

7 pages, 5 figures,Accepted for publication in AP&SS, Special issue Hot Sub-dwarf Stars, in Han Z., Jeffery S., Podsiadlowski Ph. eds

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• The origin of sdB stars (II)
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• The binary fraction of extreme horizontal branch stars
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Cited by in corpus (10)

• The Evolution of Compact Binary Star Systems
• An AMR Study of the Common Envelope Phase of Binary Evolution
• Resonant-plane locking and spin alignment in stellar-mass black-hole binaries: a diagnostic of compact-binary formation
• Adiabatic Mass Loss in Binary Stars. II. From Zero-Age Main Sequence to the Base of the Giant Branch
• Binary Population Synthesis
• Compact object mergers: exploring uncertainties from stellar and binary evolution with SEVN
• Can We Trust Models for Adiabatic Mass Loss?
• Binary Stars in the New Millennium
• The Common Envelope Evolution Outcome -- A Case Study on Hot Subdwarf B Stars
• Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination