On the relativistic motion of the periastron in the eclipsing binary system DI Herculis

Details On the relativistic motion of the periastron in the eclipsing binary system DI Herculis On the relativistic motion of the periastron in the eclipsing binary system DI Herculis

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..71..147m&link_type=abstract

Astrophysics and Space Science, vol. 71, no. 1, Aug. 1980, p. 147-170.

Astronomy and Astrophysics

Astrophysics

25

Eclipsing Binary Stars, Electrophotometry, Perigees, Relativistic Velocity, Stellar Motions, Stellar Spectrophotometry, Angular Velocity, Light Curve, Stellar Rotation, Tables (Data), Ubv Spectra

Scientific paper

An analysis of fifteen-year photoelectric observations of DI Herculis shows that the upper estimate for the relativistic part of apsidal motion in this binary system is almost three times lower than the theoretical value. The total observed angular velocity of apsidal rotation is 0.0124 deg/yr. The relativistic part is less than 0.008 deg/yr instead of 0.023 deg/yr required by the theory.

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