The LMXRB GX354-0 is flaring in the hard X-rays

J. Zurita, A. Bazzano, Søren Brandt, A. Domingo, C. Winkler, S. Grebenev

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GX 354-0 (also known as 4U 1728-34) has been monitored by INTEGRAL as part of the Galactic Center Deep Exposure almost continuously from 2004-02-16 until now. Over that period the source flux measured by IBIS/ISGRI between 20-60 keV featured a smooth increase with a maximum flux of 0.2 Crab measured on February 24th. The source flux then decreased by a factor of 5 on a time scale of one week. Below 10 keV the flux measured by JEM-X increased by a factor larger than 6 continuously on a timescale of 3 weeks. The current flux (2004-03-08) measured by JEM-X in the 3-10 keV band is 0.5 Crab. The INTEGRAL monitoring will continue for several days.
Original languageEnglish
JournalThe Astronomer´s Telegram : ATel
Pages (from-to)ATel #248
Number of pages1
Publication statusPublished - 2004

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