BROADBAND SUZAKU OBSERVATIONS OF IGR J16207-5129
- Space Sciences Laboratory, 7 Gauss Way, University of California, Berkeley, CA 94720 (United States)
- Laboratoire AIM, CEA/IRFU-Universite Paris Diderot-CNRS/INSU, CEA DSM/IRFU/SAp, Centre de Saclay, F-91191 Gif-sur-Yvette (France)
- CRESST and NASA Goddard Space Flight Center, Astrophysics Science Division, Code 661, Greenbelt, MD 20771 (United States)
- INTEGRAL Science Data Centre, Universite de Geneve, Chemin d'Ecogia 16, CH-1290 Versoix (Switzerland)
An analysis of IGR J16207-5129 is presented based on observations taken with Suzaku. The data set represents {approx}80 ks of effective exposure time in a broad energy range between 0.5 and 60 keV, including unprecedented spectral sensitivity above 15 keV. The average source spectrum is well described by an absorbed power law in which we measured a large intrinsic absorption of N {sub H} =(16.2{sup +0.9} {sub -1.1}) x 10{sup 22} cm{sup -2}. This confirms that IGR J16207-5129 belongs to the class of absorbed high-mass X-ray binaries. We were able to constrain the cutoff energy at 19{sup +8} {sub -4} keV, which argues in favor of a neutron star as the primary. Our observation includes an epoch in which the source count rate is compatible with no flux suggesting a possible eclipse. We discuss the nature of this source in light of these and of other recent results.
- OSTI ID:
- 21455014
- Journal Information:
- Astrophysical Journal, Vol. 719, Issue 1; Other Information: DOI: 10.1088/0004-637X/719/1/451; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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