The AGN nature of three INTEGRAL sources: IGR J18249–3243, IGR J19443+2117, and IGR J22292+6647
نویسندگان
چکیده
منابع مشابه
RXTE observations of strongly absorbed sources IGR J 16318 - 4848 and IGR J 16358 - 4726
Results of analysis of RXTE observations of strongly absorbed X-ray sources IGR J16318-4848 and IGR J16358-4726 are presented. Careful subtraction of Galactic ridge emission contribution to the observed spectra of RXTE/PCA allowed us to obtain the spectra of the sources in 3–25 keV energy band. Spectra of the sources cold be well described by a power law with photoabsorption. It is shown that t...
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متن کاملOptical identification of IGR J 19140 + 0951
IGR J19140+0951 was discovered by INTEGRAL in 2003 in the 4-100 keV band. Observations with INTEGRAL and RXTE provide a tentative identification as a high-mass X-ray binary (HMXB) with a neutron star as accretor. However, an optical counterpart was thus far not established. Neither was the presence of a pulsar, which is commonly observed in HMXBs. We have observed IGR J19140+0951 with Chandra a...
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Of the 21 new sources that INTEGRAL discovered up to Feb. 1, 2004, 5 were detected with the BeppoSAX Wide Field Cameras at earlier times. IGR J16320-4751 appears to be a persistently active X-ray source which hints at a supergiant Roche-lobe overflowing companion star in this proposed highmass X-ray binary. IGR J17091-3624 is a transient source that was detected in 1996 and 2001 with a maximum ...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2008
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:200810503