Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30606s&link_type=abstract
Spitzer Proposal ID #30606
Physics
Scientific paper
We propose here to perform IRAC (3.6, 4.5, 5.8 and 8 micron) and 2-band MIPS (24, 70 micron) imaging photometric observations of a statistically complete sample of 17 type 2 AGN drawn from the XMM-Newton Hard (4.5-7.5 keV) Bright Sample (HBS). The XMM-HBS sample is the largest hard X-ray sample available so far with a complete spectroscopic identification. These observations will give us the possibility to derive, for the first time, the spectral energy distributions (SEDs) from X-rays to MID-IR for a representative sample of X-ray selected absorbed AGN. The Spitzer data, combined with good X-ray and optical spectroscopic information, will allow us: 1) to investigate the possible presence of Compton-thick AGN; 2) to constrain the models of circumnuclear obscuration used to explain the physical processes in the sub-parsec circumnuclear region of AGN; and 3) to build a representative average SED for obscured AGN which will be useful to estimate photometric redshifts of distant sources. The total number of requested AORs is 34 (17 with IRAC and 17 with MIPS) for a total exposure time of 22.6 hours.
Caccianiga Alessandro
Cocchia Filomena
della Ceca Roberto
Maccacaro Tommaso
Memola Elisabetta
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