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Timing of the Binary Pulsar B1259–63

Published online by Cambridge University Press:  19 July 2016

N. Wang ,
S. Johnston  and
R. N. Manchester
N. Wang
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia Australia Telescope National Facility, CSIRO, NSW 1710, Australia
S. Johnston
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia
R. N. Manchester
Affiliation:
Australia Telescope National Facility, CSIRO, NSW 1710, Australia

Abstract

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This paper summarizes the results of 13 years of timing observations of a unique binary pulsar, B1259–63, which has a massive B2e star companion. A small glitch in the pulsar period apparently occurred in 1997 Aug, not long after the 1997 periastron. We found that spin-orbit coupling with secular changes in periastron longitude and projected semi-major axis cannot account for the observed period variations. A model in which step changes in pulsar orbital parameters occur at each periastron accounts best for the observed timing behavior.

Type
Part 10: Radio Pulsar Timing
Information
Symposium - International Astronomical Union , Volume 218: Young Neutrons Stars and their Environments , 2004 , pp. 429 - 430
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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