Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.206..179b&link_type=abstract
Astrophysics and Space Science, Volume 206, Issue 2, pp.179-190
Astronomy and Astrophysics
Astrophysics
Scientific paper
The detailed evolution of low-mass main-sequence stars (M < 1M &sun;) with a compact companion is studied. For angular momentum loss associated with magnetic braking it is found that about 10-11 10-12 M &sun; yr-1 in stellar wind loss would be required. This wind is 102 103 times stronger than the solar wind, so we believe here magnetic stellar wind is insufficient. It is well known that there is mass outflow in low-mass close binary systems. We believe here that these outflows are centrifugal driven winds from the outer parts of the accretion disks. The winds extract angular momentum from these systems and therefore drive secular evolution. Disk winds are preferred to winds from the secondary, because of the lower disk surface gravity.
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