Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93..297r&link_type=abstract
Astronomy and Astrophysics, vol. 93, no. 1-2, Jan. 1981, p. 297-305.
Astronomy and Astrophysics
Astrophysics
9
Astronomical Models, Binary Stars, Stellar Evolution, Systems Stability, Angular Momentum, Energy Transfer, Light Curve, Mass Transfer, Stellar Mass, Stellar Temperature
Scientific paper
The stability and evolution of a contact binary with an evolved primary (near the end of the main sequence) of 1 solar mass and an unevolved secondary of 0.6 solar mass is studied. The evolutionary stage (as defined by the chemical profile) on the primary is chosen so that the stationary system has components with nearly equal effective temperatures (W UMa type light curve). The evolution of this initially stationary system is followed for about 100 million yr considering separately the following driving forces: nuclear evolution, loss of angular momentum, and loss of total mass. The instability found earlier by Hazlehurst and Refsdal (1979) for an unevolved contact binary with the same masses does not arise in this case. The models calculated may represent some observed W UMa systems, not, however, the majority of these systems.
Refsdal Sjur
Stabell Rolf
No associations
LandOfFree
On the stability and evolution of evolved contact binaries 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 On the stability and evolution of evolved contact binaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the stability and evolution of evolved contact binaries will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1050710