Discovery of a 9-s X-Ray Pulsar, AX J0049-732, in the Small Magellanic Cloud

Details Discovery of a 9-s X-Ray Pulsar, AX J0049-732, in the Small Magellanic Cloud Discovery of a 9-s X-Ray Pulsar, AX J0049-732, in the Small Magellanic Cloud

2000-12-15

arxiv.org/abs/astro-ph/0012342v1

Astronomy and Astrophysics

Astrophysics

4 pages, 5 figures, to be published in PASJ

Scientific paper

We report the ASCA discovery of a new X-ray pulsar, AX J0049-732, in the Small Magellanic Cloud (SMC). The pulse shape is sinusoidal with a barycentric period of 9.1320 +/- 0.0004 s. The X-ray spectrum was fitted by an absorbed power-law model with a photon index of ~0.6 and a column density of ~1.3e22 cm^-2. An unabsorbed flux in the 0.7-10.0 keV was estimated to be ~8e-13 erg cm^-2 s^-1 corresponding to the X-ray luminosity of ~4e35 erg s^-1 at the SMC distance of 62 kpc.

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