Geodetic precession in binary pulsars

Details Geodetic precession in binary pulsars Geodetic precession in binary pulsars

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...202..109b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 202, no. 1-2, Aug. 1988, p. 109-112.

Astronomy and Astrophysics

Astrophysics

22

Binary Stars, Pulsars, Angular Momentum, Axes Of Rotation, Misalignment, Velocity Distribution

Scientific paper

Observation of geodetic precession in binary pulsars would support the 'asymmetric kick' hypothesis for the origin of pulsar velocities. For PSR 1913 + 16 the probability of this effect being observable to date, while somewhat dependent on the assumed progenitor, is much less than 20 percent in contrast to past predicitons. The null result to date cannot be taken as evidence against the asymmetric kick hypothesis for the origin of pulsar velocities, and the spin axis of the pulsar may well be misaligned with the plane of the orbit. The present model predicts a typical misalignment angle of 20 deg and a typical tilt rate of the emission cone of 0.15 deg/year. The model is applied to binary pulsars in general, showing that the likelihood of observing geodetic precession in the near future is low.

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