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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3010

Title: The new binary pulsar and the observation of gravitational spin precession
Authors: Hari Dass, N.D.
Radhakrishnan, V.
Keywords: BINARY STARS
GRAVITATIONAL EFFECTS
PRECESSION
PULSARS
RELATIVISTIC EFFECTS
SPIN-ORBIT INTERACTIONS
PULSE DURATION
STELLAR RADIATION
Issue Date: Feb-1975
Publisher: Gordon and Breach Science Publishers.
Citation: Astrophysical Letters, 1975, Vol.16, p135-139.
Abstract: The possibility of observing gravitational spin precession due to spin-orbit coupling in a binary pulsar system is considered. An analysis is presented which can aid in delineating the relevant physical effects from pulse-structure data. In this analysis, it is assumed that the pulsar radiation emanates from a cone whose axis is tilted with respect to the axis of rotation. It is found that the time-averaged pulse width and polarization sweep vary periodically with time and that this variation has a periodicity of the order of the spin-precession frequency averaged over a complete revolution. It is concluded that for an orbital period of about 180 years, it suffices to measure polarization data with an accuracy of a few parts in 100 over a period of six months to a year in order to uncover the effects of spin precession. The consistency of the analysis is checked, and the calculations are applied to a recently discovered binary pulsar.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/3010
ISSN: 0004-637X
Alternative Location: http://adsabs.harvard.edu/cgi-bin/bib_query?1975ApL....16..135H
Copyright: 1975 Gordon and Breach Science Publishers.
Appears in Collections:Research Papers (A&A)
Research Papers (A&A)

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