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Title:
Discovery of 14 Radio Pulsars in a Survey of the Magellanic Clouds
Authors:
Manchester, R. N.; Fan, G.; Lyne, A. G.; Kaspi, V. M.; Crawford, F.
Affiliation:
AA(Australia Telescope National Facility, CSIRO, P.O. Box 76, Epping, NSW 1710, Australia.), AB(Physics Department, University of Hong Kong, Pokfulham Road, Hong Kong, China.; Department of Physics, Rutherford Physics Building, McGill University, Montreal, QC H3A 2T8, Canada.), AC(University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL, UK.), AD(Department of Physics, Rutherford Physics Building, McGill University, Montreal, QC H3A 2T8, Canada.), AE(Department of Physics, Haverford College, Haverford, PA 19041-1392.)
Publication:
The Astrophysical Journal, Volume 649, Issue 1, pp. 235-242. (ApJ Homepage)
Publication Date:
09/2006
Origin:
UCP
ApJ Keywords:
Galaxies: Magellanic Clouds, Stars: Pulsars: General, Surveys
DOI:
10.1086/505461
Bibliographic Code:
2006ApJ...649..235M

Abstract

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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