A possible rescue of general relativity in DI Herculis

Details A possible rescue of general relativity in DI Herculis A possible rescue of general relativity in DI Herculis

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97..216r&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, Jan. 1989, p. 216-221.

Astronomy and Astrophysics

Astronomy

11

Apsides, Binary Stars, Stellar Orbits, Stellar Rotation, Angular Momentum, B Stars, Relativity, Stellar Mass

Scientific paper

The binary DI Her has attracted attention because its low observed rate of apsidal advance, 1.0 + or - 0.3 deg per 100 yr, appears to contradict general relativity, which seems to require a value of 4.3 + or - 0.3 deg per 100 yr. Very tentative evidence in support of the hypothesis that the stars are rotating about axes highly inclined to the orbital axis is presented. If the inclination of a component is greater than 54.7 deg, then its rotational distortion will slow the apsidal advance. An apsidal advance rate of 0.7 + or - 2.0 deg per 100 yr is calculated from sparse data.

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