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arXiv · 0802.3388

On the nature of the X-ray pulsar SAX J1324-6200

S. Mereghetti·P. Romano·L. Sidoli
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Abstract

We present recent observations of the X-ray pulsar SAX J1324-6200 obtained in December 2007 with the Swift satellite yielding a significant improvement in the source localization with respect to previous data and a new measurement of the spin period P=172.84s. A single object consistent in colors with a highly reddened early type star is visible in the X-ray error box. The period is significantly longer than that obtained in 1997, indicating that SAX J1324-6200 has been spinning down at an average rate of ~6x10^-9 s s^-1. We discuss the possible nature of the source showing that it most likely belongs to the class of low luminosity, persistent Be/neutron star binaries.

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S. Mereghetti, P. Romano, L. Sidoli. 2008-02-22. On the nature of the X-ray pulsar SAX J1324-6200. https://doi.org/10.1051/0004-6361:200809397

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