Timing observations of the binary pulsar PSR 0655+64

Details Timing observations of the binary pulsar PSR 0655+64 Timing observations of the binary pulsar PSR 0655+64

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.232..473j&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 232, May 15, 1988, p. 473-480.

Physics

25

Binary Stars, Pulsars, Stellar Physics, Ephemerides, Relativistic Effects, Spin Reduction, Stellar Magnetic Fields, Stellar Rotation

Scientific paper

The authors present the results of 6.5 years of timing observations of PSR 0655+64 and derive an ephemeris and precise position. The very small period derivative of 6.9×10-19s s-1 implies a spin-down age of 4.5×109yr and a magnetic field of 1.2×1010 G. Kulkarni's optical identification of the companion star is confirmed. The measured eccentricity of 7.5×10-6 may be partly due to to a general relativistic delay caused by the passage of pulses through the gravitational field of the companion star. A significant relativistic advance of the periastron should be observable over a period of ⪉30 yr.

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