New fast X-ray transient IGR J18462-0223 discovered by the INTEGRAL observatory

Details New fast X-ray transient IGR J18462-0223 discovered by the INTEGRAL observatory New fast X-ray transient IGR J18462-0223 discovered by the INTEGRAL observatory

2010-09-17

arxiv.org/abs/1009.3440v2

Astronomy Letters, v. 36, pp. 533-539 (2010)

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

Scientific paper

Details of the discovery of a new X-ray source, IGR J18462-0223, on October 12, 2007, during a short (several hours), intense (~ 35 mCrab at the peak) outburst of hard radiation by the IBIS/ISGRI gamma-ray telescope onboard the INTEGRAL observatory are given. The detection of another earlier outburst from this source occurred on April 28, 2006, in the archival data of the telescope is reported. We present the results of the source's localization and our spectral/timing analysis of the observational data. The source may turn out to be yet another representative of the continuously growing population of fast X-ray transients, which are the focus of attention because of the identification of their optical counterparts with early-type supergiants.

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