Revision of the elements of the photometric orbit and the apsidal motion rate in the eclipsing binary system DI Herculis

Details Revision of the elements of the photometric orbit and the apsidal motion rate in the eclipsing binary system DI Herculis Revision of the elements of the photometric orbit and the apsidal motion rate in the eclipsing binary system DI Herculis

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13..218m&link_type=abstract

Pis'ma Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, no. 3, 1987, p. 218-222. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

2

Angular Velocity, Apsides, Eclipsing Binary Stars, Orbital Elements, Stellar Spectra, Electrophotometry, Stellar Rotation

Scientific paper

New elements of the photometric orbit of DI Her have been determined from photoelectric measurements 1969 - 1980. A new value of ω- the apsidal motion rate - has been derived from photoelectric observations of 1963 - 1980 and from the best photometric estimates of the first half of the century. This value is as follows: ω= 0°.0077±0°.0007 (full period of apsidal rotation Π = 46700±4000 years). There remained no place for relativistic motion ωr = 0°.0233 p.y.

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