XMM-Newton observations of candidate Swift-BAT Compton-thick sources

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Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Swift J1009.3-4, Leda 86063, Leda 1473304, Eso 201-Ig 004, Swift J0823.4-0, 2Masx J05280316, Apmuks(Bj) B040, Xmm-Newton Proposal 05012107

Scientific paper

We propose to perform sensitive X-ray observations with XMM-Newton of 7 candidate Compton-thick AGN detected by Swift-BAT in the ongoing all-sky survey (15-200 keV). The BAT spectra reveal, through the detection of the photoelectric cut-off (10-20 keV), that these objects are obscured by intervening matter which is Compton-thick. Sensitive X-ray observations are needed to confirm and to study the nature of these sources. A powerful diagnostic for the presence of Compton-thick matter is provided by the intensity and equivalent width of the iron line. XMM-Newton is the most suitable observatory to study such objects as its sensitivity is 10x larger than Swift-XRT at 6 keV.

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