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

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

We report on an 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 −0.7 and a column density of 1.3 −1.3 × 10 22 cm. An unabsorbed flux at 0.7–10.0 keV was estimated to be 8× 10 erg cm s corres...

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Aims. To investigate candidates for Be/X-ray binaries in the Small Magellanic Cloud (SMC), we observed a region around the emission nebula N19 with XMM-Newton in October 2006. Methods. We analysed the EPIC data of the detected point sources to derive their spectral and temporal characteristics. Results. We detected X-ray pulsations with a period of 25.550(2) s from the second-brightest source i...

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ژورنال

عنوان ژورنال: Publications of the Astronomical Society of Japan

سال: 2000

ISSN: 0004-6264,2053-051X

DOI: 10.1093/pasj/52.6.l63