Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208..111s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 111-121. Research supported by AN SSSR.
Astronomy and Astrophysics
Astrophysics
25
Eclipsing Binary Stars, Stellar Envelopes, Stellar Evolution, Stellar Mass Accretion, Mass Transfer, Roche Limit, Stellar Oscillations
Scientific paper
The effects of mass accretion onto the secondary components in close binary systems exchanging mass in the Case A have been investigated. It is demonstrated that it is possible to obtain contact binaries from semidetached systems before an inversion of the mass ratio takes place. We found that these systems reach contact after 1000-3,000,000 years and after transferring (0.002-0.23) solar mass. The temperature inversion layer which is located practically at a fixed position in mass exists in all contact binaries in which the secondary has a mass of not greater than 0.5 solar mass. The inversion is located well below the inner Roche lobe, which disagrees, at least initially, with the assumption that the entropy discontinuity is fixed at the Roche lobe of the secondary. The present computations are in a good agreement with the observational data for the W UMa-type systems.
Fedorova Alexandra V.
Sarna Marek J.
No associations
LandOfFree
Evolutionary status of W Ursae Majoris-type binaries - Evolution into contact 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 Evolutionary status of W Ursae Majoris-type binaries - Evolution into contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolutionary status of W Ursae Majoris-type binaries - Evolution into contact will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-824597