Short X-ray Transient Detection by MAXI/GSC

Details Short X-ray Transient Detection by MAXI/GSC Short X-ray Transient Detection by MAXI/GSC

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atel.2990....1t&link_type=abstract

The Astronomer's Telegram, #2990

Astronomy and Astrophysics

Astronomy

X-Ray, Transient

Scientific paper

At the scan transit, MAXI/GSC detected a transient X-ray source, which was present at least for 16 seconds within the 45 seconds triangular transit response of MAXI/GSC. The light curve without the triangular response correction shows a sharp rise (~2 s) and a slow decay (>14 s). The peak of the count rate was at UT 2010-10-30T10:09:07. Assuming constant flux over the transit, the source location is determined as (R.A., Dec) = (+279.98 deg, 1.85 deg) = (18 39 55, +01 51 00) (J2000) We obtain a rectangular error box with the following corners: (R.A., Dec) = (+280.75 deg, +2.45 deg) = (18 43 00, +02 27 00) (J2000) (R.A., Dec) = (+280.44 deg, +2.71 deg) = (18:41:46, +02 42 36) (J2000) (R.A., Dec) = (+279.22 deg, +1.25 deg) = (18:36:53, +01 15 00) (J2000) (R.A., Dec) = (+279.52 deg, +0.99 deg) = (18:38:05, +00 59 24) (J2000) The preliminary flux (4-10keV) of the source is at least 250 mCrab, and the spectrum can be represented with an absorbed black-body model of ~1 keV.

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