Pseudosynchronization found in binaries with eccentric orbits

Details Pseudosynchronization found in binaries with eccentric orbits Pseudosynchronization found in binaries with eccentric orbits

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...309l..83h&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 309, Oct. 15, 1986, p. L83-L85.

Astronomy and Astrophysics

Astrophysics

33

Binary Stars, Eccentric Orbits, Late Stars, Stellar Rotation, Stellar Orbits, Synchronism

Scientific paper

Eight late-type binaries with eccentric orbits and with both P(orb) and P(rot) known are examined to look for the pseudosynchronization predicted by the theory published by Hut in 1981. Observation agrees quantitatively very well with theory in four cases (BY Dra, 54 Cam, HD 8357, HR 7578) and is consistent in one (93 Leo). The extreme case is HR 7578, where e = 0.68 and P(rot)/P(orb) = 0.17. The star BD +24°692 in the Hyades appears to be approaching pseudosynchronization.

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