Fifth set of INTEGRAL observations of GX339-4: preliminary spectral fit results

Details Fifth set of INTEGRAL observations of GX339-4: preliminary spectral fit results Fifth set of INTEGRAL observations of GX339-4: preliminary spectral fit results

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1050....1c&link_type=abstract

The Astronomer's Telegram, #1050

Astronomy and Astrophysics

Astronomy

3

X-Ray, Gamma Ray, Binaries, Black Holes, Transients, Variables

Scientific paper

We present the results of preliminary spectral fits to the fifth period of 150 ksec public INTEGRAL ToO observations of GX 339-4 (see ATels #980, #986, #1000, #1012, #1029, #1032, #1048), obtained between UT 2007, Mar 29, 04:40 and Mar 31, 01:42. We made joint spectral fits to spectra obtained with the JEM-X (5-20 keV) and IBIS/ISGRI (23-100 keV) instruments. The spectrum continued to soften, as observed in the previous observation (ATel #1032), with a contribution of the disk compared to the power-law emission (see below) of about 74%.

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