Broadband Suzaku observations of IGR J16207-5129
arXiv:1006.1911 · doi:10.1088/0004-637X/719/1/451
Abstract
An analysis of IGR J16207-5129 is presented based on observations taken with Suzaku. The data set represents ~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 nH = 16.2(-1.1/+0.9)x10^22 /cm2. This confirms that IGR J16207-5129 belongs to the class of absorbed HMXBs. We were able to constrain the cutoff energy at 19(-4/+8) 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.
12 pages, 6 figures, accepted for publication in ApJ
References in corpus (18)
- Catalogue of high-mass X-ray binaries in the Galaxy ( edition)
- The 3rd IBIS/ISGRI soft gamma-ray survey catalog
- Unveiling supergiant fast X-ray transient sources with INTEGRAL
- INTEGRAL/IBIS all-sky survey in hard X-rays
- Probing clumpy stellar winds with a neutron star
- High variability in Vela X-1: giant flares and off states
- Unveiling the nature of INTEGRAL objects through optical spectroscopy. V. Identification and properties of 21 southern hard X-ray sources
- Multi-wavelength observations of Galactic hard X-ray sources discovered by INTEGRAL. II. The environment of the companion star
- A description of sources detected by INTEGRAL during the first 4 years of observations
- Monitoring Supergiant Fast X-ray Transients with Swift. I. Behavior outside outbursts
- Unveiling the nature of six HMXBs through IR spectroscopy
- A search for counterparts to massive X-ray binaries using photometric catalogues
- Supergiant Fast X-ray Transients and Other Wind Accretors
- X-ray Fluorescent Fe Kalpha Lines from Stellar Photospheres
- IGRJ16479-4514: the first eclipsing supergiant fast X-ray transient?
- A Possible Magnetar Nature for IGR J16358-4726
- Peering through the stellar wind of IGR J19140+0951 with simultaneous INTEGRAL/RXTE observations
- The nature of the infrared counterpart of IGR J19140+0951