Early-type binaries on main sequence (Khaliullin+, 2010)

Details Early-type binaries on main sequence (Khaliullin+, 2010) Early-type binaries on main sequence (Khaliullin+, 2010)

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ycat..74010257k&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/401/257. Originally published in: 2010MNRAS.401..257K

Physics

Stars: Double And Multiple, Photometry, Morphology, Stars: Masses

Scientific paper

We showed in a preceding paper based on an analysis of the observed rates of apsidal motion that synchronization in early-type eclipsing binaries continues on the main sequence, and the observed synchronization times, tsyn, agree with the Zahn's theory (1977A&A....57..383Z) and are inconsistent with the shorter time-scale proposed by Tassoul (1987ApJ...322..856T, 1988ApJ...324L..71T). It follows from this that circularization in early-type binaries must also proceed in accordance with the Zahn's theory because the circularization times, tcirc, in both theories are rather tightly related to tsyn via relation tcirc~αtsyn, where α is the orbital-to-axial momentum ratio.
(3 data files).

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