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arxiv: astro-ph/0407018 · v1 · submitted 2004-07-01 · 🌌 astro-ph

Discovery of a new INTEGRAL source: IGR J19140+0951

D.C. Hannikainen (1) , J. Rodriguez (2 , 3) , C. Cabanac (4) , J. Schultz (1) , N. Lund (5) , O. Vilhu (1) , P.O. Petrucci (4)
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G. Henri (4) ((1) Observatory University of Helsinki Finland; (2) CEA Saclay France; (3) ISDC Switzerland; (4) LAOG France; (5) DSRI Denmark)
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keywords j19140analysisdiscoveryintegralalthoughbinaryblackcannot
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IGR J19140+0951 (formerly known as IGR J19140+098) was discovered with the INTEGRAL satellite in March 2003. We report the details of the discovery, using an improved position for the analysis. We have performed a simultaneous study of the 5-100 keV JEM-X and ISGRI spectra from which we can distinguish two different states. From the results of our analysis we propose that IGR J19140+0951 is a persistent Galactic X-ray binary, probably hosting a neutron star although a black hole cannot be completely ruled out.

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