2008•UvA-DARE (University of Amsterdam)Requires access
Further observations of GRO J1750-27 (AX J1749.1-2639) with INTEGRAL
Søren K. Brandt, Sara Elizabeth Shaw, Adam B. Hill, Peter Kretschmar, Rudy A. D. Wijnands, T. Oosterbroek, Erik Kuulkers, Volker Beckmann, S. Soldi, J. Chenevez, T. Courvoisier, A. Domingo, Ken Ebisawa, Peter Gustaaf Jonker, Craig B. Markwardt, Adamantia Paizis, Daniel Risquez, C. Sánchez‐Fernández
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Abstract
The transient accreting X-ray pulsar GRO J1750-27 (AX J1749.1-2639), which became active end of January 2008 (ATel #1376), has been repeatedly observed by the INTEGRAL Galactic Bulge monitoring program since mid February (ATel #1385) on 11, 20 and 23 Feb. 2008. During the three observations, totalling about 27 ks, the source has remained bright at a roughly constant level with the following flux averaged over the 3 observations: 186+/-9 mCrab (3-10 keV), 319+/-15 mCrab (10-25 keV), 198+/-2 mCrab (18-40 keV), and 20+/-3 mCrab (40-100 keV).