A nearby 37.9-ms radio pulsar in a relativistic binary system

Details A nearby 37.9-ms radio pulsar in a relativistic binary system A nearby 37.9-ms radio pulsar in a relativistic binary system

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.350..688w&link_type=abstract

Nature (ISSN 0028-0836), vol. 350, April 25, 1991, p. 688-690.

Other

194

Binary Stars, Companion Stars, Pulsars, Radio Stars, Relativistic Effects, Milky Way Galaxy, Radio Telescopes, Stellar Mass

Scientific paper

The discovery of a 37.9-ms radio pulsar, PSR1534 + 12, in a 10.1-hr eccentric binary orbit is reported. Timing analysis constraints the masses of the pulsar and its companion to be 1.32 + or - 0.03 solar and 1.36 + or - 0.03 solar. This, together with the high eccentricity and small orbital diameter, indicates that the companion is probably another neutron star and that the orbital evolution is strongly influenced by effects due to general relativity. The exceptionally high timing accuracy obtainable in PSR1534 + 12, because the pulse is so strong and narrow, will allow general relativity to be tested with unprecedented accuracy. The unique morphology of the pulsar's emission and polarization will enable the measurement of a previously unconfirmed relativistic effect, the geodetic precession of the pulsar spin axis.

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