Radio and Optical Observations of PSR J0045-7319

Details Radio and Optical Observations of PSR J0045-7319 Radio and Optical Observations of PSR J0045-7319

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aas...185.6207k&link_type=abstract

American Astronomical Society, 185th AAS Meeting, #62.07; Bulletin of the American Astronomical Society, Vol. 26, p.1416

Astronomy and Astrophysics

Astronomy

Scientific paper

We present radio and optical observations of the pulsar/B-star binary, PSR J0045-7319, the only known pulsar in the Small Magellanic Cloud. Radio timing observations of the pulsar reveal low-level systematic residuals after a fit for a simple spin-down model using a standard Keplerian orbit. We discuss various possible origins of the residuals. We also present results of optical spectroscopic observations of the companion B-star. The detection of Doppler shifts of the companion's absorption lines would make the PSR J0045-7319 system the first effective double-lined spectroscopic binary containing a radio pulsar, and allow the determination of the mass ratio of the components.

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