Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (203) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Thresholds for rapid mass transfer in binary systems. I - Polytropic models
Authors:
Hjellming, Michael S.; Webbink, Ronald F.
Affiliation:
AA(Illinois, University, Urbana), AB(Illinois, University, Urbana)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 318, July 15, 1987, p. 794-808. (ApJ Homepage)
Publication Date:
07/1987
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Binary Stars, Mass Transfer, Polytropic Processes, Stellar Mass Ejection, Stellar Models, Adiabatic Conditions, Main Sequence Stars, Stellar Envelopes, Stellar Evolution, Stellar Mass Accretion, Tables (Data)
DOI:
10.1086/165412
Bibliographic Code:
1987ApJ...318..794H

Abstract

The adiabatic responses to mass loss of simple and compound polytropic star models are explored. The results show that stars in thermal equilibrium with isentropic surface layers are linearly unstable if the mass ratio exceeds a finite critical threshold q(0). Unless the mass fraction in these surface layers is quite small, q(0) is of the order of unity. On the other hand, stars in thermal equilibrium with subadiabatic surface layers are linearly stable for any value of the mass ratio. A finite-amplitude instability exists to which radiative stars are subject. If the initial phases of mass transfer are sufficiently rapid, such a star may undergo a delayed transition to dynamical time scale mass loss. Red giants with small core mass fractions behave very much like fully convective stars, expanding adiabatically as they lose mass.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences



More Article Retrieval Options

HELP for Article Retrieval


Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints