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

Masaru Ueno | Zendy; Jun Yokogawa | Zendy; Kensuke Imanishi | Zendy; Katsuji Koyama | Zendy

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

Author(s) -

Masaru Ueno,

Jun Yokogawa,

Kensuke Imanishi,

Katsuji Koyama

Publication year - 2000

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/52.6.l63

Subject(s) - physics , pulsar , astrophysics , small magellanic cloud , luminosity , large magellanic cloud , x ray pulsar , flux (metallurgy) , astronomy , galaxy , materials science , metallurgy

We report the ASCA discovery of a new X-ray pulsar, AX J0049-732, in theSmall Magellanic Cloud (SMC). The pulse shape is sinusoidal with a barycentricperiod of 9.1320 +/- 0.0004 s. The X-ray spectrum was fitted by an absorbedpower-law model with a photon index of ~0.6 and a column density of ~1.3e22cm^-2. An unabsorbed flux in the 0.7-10.0 keV was estimated to be ~8e-13 ergcm^-2 s^-1 corresponding to the X-ray luminosity of ~4e35 erg s^-1 at the SMCdistance of 62 kpc.Comment: 4 pages, 5 figures, to be published in PAS

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