Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...370..709h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 370, April 1, 1991, p. 709-716.
Astronomy and Astrophysics
Astrophysics
63
Abundance, Binary Stars, Main Sequence Stars, Stellar Envelopes, Stellar Mass Accretion, Red Giant Stars, Stellar Evolution, Stellar Mass, Stellar Models
Scientific paper
The response of a 1.25 solar mass secondary ZAMS star to the low-density, high-entropy conditions within the common envelope of a red giantlike configuration is numerically investigated in order to examine the state of the star on its emergence from the common-envelope stage. The results demonstrate that such a star accumulates little matter, typically less than 0.01 solar mass, after a long adiabatic accretion phase followed by a brief, nearly adiabatic Roche-lobe overflow phase. The evolution time scale for the common-envelope phase is rapid, and the duration of the common-envelope phase is 400-4000 yr. It is expected that the envelope of the secondary would significantly depart from a thermal equilibrium state on its emergence from the common-envelope phase. Once the common envelope is ejected, the thermal relaxation time scale of the disturbed outer envelope layer of the secondary is found to be about 10,000 yr.
Hjellming Michael S.
Taam Ronald E.
No associations
LandOfFree
The response of main-sequence stars within a common envelope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The response of main-sequence stars within a common envelope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The response of main-sequence stars within a common envelope will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1790169