burst in 1E 1145.1-6141

Details burst in 1E 1145.1-6141 burst in 1E 1145.1-6141

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004atel..290....1b&link_type=abstract

The Astronomer's Telegram, #290

Astronomy and Astrophysics

Astronomy

7

X-Ray, Gamma Ray, Pulsars, Transients

Scientific paper

We report the brightening of the high-mass X-ray binary 1E 1145.1-6141 by a factor of 4 in 20--60 keV between June 10 (00:00 UTC) and June 11 (09:30 UTC), reaching about 130 mCrab in this energy range. The burst was recorded by the ISGRI detector on board INTEGRAL during an open observation of the Carina region. To our knowledge, no such burst has been mentioned in the literature so far, as the source is believed to be a persistent and steady X-ray pulsar with a flux up to 20--30 mCrabs (Grebenev et al., 1992, see also Ray & Chakrabarty, 2002).

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