Swift detection of a new bright X-ray transient in M 31

Details Swift detection of a new bright X-ray transient in M 31 Swift detection of a new bright X-ray transient in M 31

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1674....1p&link_type=abstract

The Astronomer's Telegram, #1674

Astronomy and Astrophysics

Astronomy

5

Optical, Ultra-Violet, X-Ray, Transients

Scientific paper

SWIFT J004320.5+411528 is detected as a new transient at RA(J2000) 00:43:20.56, Dec(J2000) +41:15:28.8 (1 sigma position error 3.7") with the X-Ray Telescope (XRT) on board the Swift satellite in ObsID 31255001 starting on 2008-08-21.31 UT. In five observation intervals spread over seven hours (effective exposure 5.8 ks) 411±21 counts are detected in the 0.5-5 keV band (90% PSF). The Swift XRT spectrum is best fitted with a absorbed disk-black-body model with an absorption column of (1.1±0.8)e21 cm-2 and a inner disk temperature of (0.55±0.08) keV.

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