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Discovery Of A Possible Anomalous X-Ray Pulsar In The Small Magellanic Cloud

Lamb, R. C. and Fox, D. W. and Macomb, D. J. and Prince, T. A. (2002) Discovery Of A Possible Anomalous X-Ray Pulsar In The Small Magellanic Cloud. Astrophysical Journal, 574 (1). L29-L32. ISSN 0004-637X. doi:10.1086/342352.

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We report the serendipitous detection of a previously unreported pulsar from the direction of the Small Magellanic Cloud using data from the Chandra X-Ray Observatory. Because of its luminosity (∼1.5x10^(35) ergs s^(-1)), its near lack of variability for more than 20 yr, and its very soft spectrum, we propose that it is an anomalous X-ray pulsar (AXP). Data from the ROSAT PSPC in conjunction with the Chandra data give a period, P, of 5.44 s and a spin-down time, P/P, of 11 kyr. If this is a correct identification, it will be the first extragalactic AXP and the fastest yet discovered.

Item Type:Article
Related URLs:
URLURL TypeDescription DOIArticle ErrataAddendum
Fox, D. W.0000-0002-3714-672X
Prince, T. A.0000-0002-8850-3627
Additional Information:© 2002 The American Astronomical Society. Received 2002 May 17; accepted 2002 June 13; published 2002 June 25. This work made use of software and data provided by the High-Energy Astrophysics Archival Research Center (HEASARC) located at Goddard Space Flight Center.
Group:Space Radiation Laboratory
Subject Keywords:galaxies: individual (Small Magellanic Cloud)—pulsars: general—stars: neutron— X-rays: stars
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2001-26
Issue or Number:1
Record Number:CaltechAUTHORS:20150302-155129747
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Official Citation:Discovery of a Possible Anomalous X-Ray Pulsar in the Small Magellanic Cloud R. C. Lamb et al. 2002 ApJ 574 L29
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55433
Deposited By: Deborah Miles
Deposited On:06 Mar 2015 16:38
Last Modified:10 Nov 2021 20:45

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