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http://hdl.handle.net/2289/3009
Title: | The new binary pulsar and the observation of gravitational spin precession |
Authors: | Hari Dass, N.D. Radhakrishnan, V. |
Keywords: | Binary stars Gravitational effects Precision 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) |
Files in This Item:
File | Description | Size | Format | |
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1975 Astro. Letters V16 p135.pdf Restricted Access | Restricted Access | 329.26 kB | Adobe PDF | View/Open Request a copy |
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