Hari, Dass ND and Radhakrishnan, V (1975) The new binary pulsar and the observation of gravitational spin precession. In: Astrophysical Letters and Communications, 16 (4). 135 -139.
Full text not available from this repository. (Request a copy)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.
| Item Type: | Journal Article |
|---|---|
| Publication: | Astrophysical Letters and Communications |
| Publisher: | Gordon Breach Sci Publ Ltd |
| Additional Information: | Copyright of this article belongs to Gordon Breach Sci Publ Ltd. |
| Keywords: | Binary stars;gravitational effects;precession;pulsars; relativistic effects;spin-orbit interactions;pulse duration; stellar radiation. |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003) |
| Date Deposited: | 22 Jan 2010 07:07 |
| Last Modified: | 22 Jan 2010 07:07 |
| URI: | http://eprints.iisc.ac.in/id/eprint/23780 |
Actions (login required)
 |
View Item |
