Discovery of 14 radio pulsars in a survey of the Magellanic Clouds

Details Discovery of 14 radio pulsars in a survey of the Magellanic Clouds Discovery of 14 radio pulsars in a survey of the Magellanic Clouds

2006-04-20

arxiv.org/abs/astro-ph/0604421v1

Astrophys.J.649:235-242,2006

Astronomy and Astrophysics

Astrophysics

In press, ApJ

Scientific paper

10.1086/505461

A systematic survey of the Large and Small Magellanic Clouds for radio pulsars using the Parkes radio telescope and the 20-cm multibeam receiver has resulted in the discovery of 14 pulsars and the redetection of five of the eight previously known spin-powered pulsars believed to lie in the Magellanic Clouds. Of the 14 new discoveries, 12 are believed to lie within Clouds, three in the Small Cloud and nine in the Large Cloud, bringing the total number of known spin-powered pulsars in the Clouds to 20. Averaged over all positions within the survey area, the survey had a limiting flux density of about 0.12 mJy. Observed dispersion measures suggest that the mean free electron density in the Magellanic Clouds is similar to that in the disk of our Galaxy. The observed radio luminosities have little or no dependence on pulsar period or characteristic age and the differential luminosity function is consistent with a power-law slope of -1 as is observed for Galactic pulsars.

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