Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...135..393g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 135, no. 2, June 1984, p. 393-396.
Astronomy and Astrophysics
Astrophysics
36
Binary Stars, Orbital Velocity, Stellar Rotation, Stellar Spectra, Synchronism, Angular Velocity, H Lines
Scientific paper
The rotational properties of a large sample of noneclipsing double-lined spectroscopic binaries are discussed in terms of synchronization of axial and orbital rotation. The data covered the spectral types OB and A04, i.e., those with full radiative envelopes. Nearly 80 systems were investigated, and the periods and orbital velocities are provided. A high correlation was found between the fractional radius and the occurrence of synchronicity and pseudosynchronicity. Deviations from synchronous rotation were most apparent at fractional radii of 0.05 and below. Current theories of the synchronization time scales are noted to be inadequate for describing the small fractional radii-lack of synchronism observed.
Giuricin Giuliano
Mardirossian Fabio
Mezzetti Marino
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