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In this AO we propose to observe for 700 ksec the brightest broad line radio galaxy (IGR J21247+5058) in the hard X-ray sky. We request a joint 10 ksec observation with XMM ideally covering the central part of the INTEGRAL pointing two Swift/XRT observations of 10 ksec each will also be performed at the beginning and at the end of the INTEGRAL measurement we will also have a daily radio monitoring of the source at 15 GHz using the AMI telescope. The aim of this proposal is to obtain high quality simultaneous coverage over a broad energy range in order to characterise both the low and high energy spectral param- eters and the weak reprocessing features of the source also providing further monitoring of this peculiar object which has complex and variable absorption at odds with its type 1 classification. The simultaneity of the XMM and INTEGRAL observations together with the Swift/XRT measurements will allow us to assess the nature of the variability in this source as well as to place stringent constraints on two important high energy parameters: the high energy cut-off and the Compton reflection hump above 10 keV. Compared with previous data this joint observation can shed light on the nature of a bright and quite peculiar radio galaxy. [truncated! Please see actual data for full text]

提供机构:
European Space Agency
创建时间:
2025-03-14
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