Three New Long Period X-ray Pulsars Discovered in the Small Magellanic Cloud

Abstract

The Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected with the {\it Chandra X-ray Observatory}. The pulsars, with periods of 152, 304 and 565 seconds, all show hard X-ray spectra over the range from 0.6 - 7.5 keV. The source positions of the three pulsars are consistent with known H-alpha emission sources, indicating they are likely to be Be type X-ray binary star systems.

Accepted for publication in the Astrophysical Journal

References in corpus (1)

• Discovery of a Possible Anomalous X-ray Pulsar in the Small Magellanic Cloud

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