Tidal friction in the binary pulsar system PSR 1913 + 16

Details Tidal friction in the binary pulsar system PSR 1913 + 16 Tidal friction in the binary pulsar system PSR 1913 + 16

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...203..202b&link_type=abstract

Astrophysical Journal, vol. 203, Jan. 1, 1976, pt. 1, p. 202-205.

Other

11

Binary Stars, Gravitational Waves, Orbit Calculation, Periodic Variations, Pulsars, Eccentric Orbits, Equations Of State, Neutron Stars, Relativity, Stellar Atmospheres, White Dwarf Stars

Scientific paper

It is shown that in the binary star system containing the pulsar PSR 1913 + 16, orbital-period changes produced by tidal friction may be significant. If the unseen companion is a white dwarf with a turbulent atmosphere, one expects orbital-period changes of the order of one part in one billion per year. This is larger than the predicted period change due to gravitational radiation and other higher-order post-Newtonian effects. Detection of an orbital-period increase of this magnitude will almost certainly imply that the unseen companion is a white dwarf.

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