November, 7 2006 CXC Extragalactic Surveys worksh op Obscured AGN in the COSMOS field: the multiwavelength challenge Marcella Brusa (MPE) Collaborators : F. Civano, A. Comastri, G. Zamorani, F. Fiore (optical ID) + XMM-COSMOS team: G. Hasinger (PI), N. Cappelluti, M. Elvis, A. Finoguenov, R. Gilli, V. Mainieri, T. Miyaji, C. Vignali ... + P. Capak, H. McCracken, D. Thompson + (optical catalogs) M. Salvato, O. Ilbert, H. Aussel + S-COSMOS (Spitzer)
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November, 7 2006CXC Extragalactic Surveys workshop Obscured AGN in the COSMOS field: the multiwavelength challenge Marcella Brusa (MPE) Collaborators:
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Obscured AGN in the COSMOS field: the multiwavelength challenge
Obscured AGN in the COSMOS field: the multiwavelength challenge
Marcella Brusa (MPE)
Collaborators:F. Civano, A. Comastri, G. Zamorani, F. Fiore (optical ID)+ XMM-COSMOS team: G. Hasinger (PI), N. Cappelluti, M. Elvis, A.
Finoguenov, R. Gilli, V. Mainieri, T. Miyaji, C. Vignali ...+ P. Capak, H. McCracken, D. Thompson + (optical catalogs)M. Salvato, O. Ilbert, H. Aussel + S-COSMOS (Spitzer)J. Trump + IMACS, S.Lilly + zCOSMOS (redshifts)
Deep multiwavelength coverage needed to properly study and characterize AGN population as a whole:
Check for selection criteriaselection criteria (X-ray vs. optical vs. IR vs. radio) Determine bolometric output obscured sources and low-L objects Complete picture of AGN/galaxy (co)-evolution
(One of the) Main goal of the XMM-Newton Wide field survey in the (One of the) Main goal of the XMM-Newton Wide field survey in the COSMOS field is: COSMOS field is: „„study the study the evolution of evolution of (obscured)(obscured) Active Galactic Nuclei Active Galactic Nuclei over the over the cosmic timecosmic time and the dependence of and the dependence of black hole growthblack hole growth on on galaxy galaxy morphologymorphology and and environmentenvironment““
COSMOS has (or will have soon) all the data to make the source identification at best
“Problem”: XMM-Newton PSF is 6” optical data “too” deep (Scoville et al. 2007) ~1 object expected by chance in a 5” error box at the 24-26 mag large spread on X/O ratios for X-ray sources
optically faint (I>24) difficult to identify using optical bands only [see also Alexander et al. 2001]
~200 sources in the XMM-COSMOS sample:
candidate high-z (z>1) obscured QSO, z>4 QSO…
Efficiency of combination of IR+hard X-ray surveys [Mignoli et al. 2004, Koekemoer et al. 2004, Brusa et al. 2005, Severgnini et al. 2005, Maiolino et al. 2006 and many others!]
Obscured sources (NOT BL AGN and hardsources) are preferentially associated with“red” objects
IRAC colours of NL AGN (RED) and galaxies(CYAN) show significant contribution from host galaxy light Optically faint (i>25 or undetected) sources have steep PL SED OBSCURED AGN
Brusa et al. 2007ApJS
(“dichotomy” confirmed by spectral analysis, Mainieri et al. 2006)
- correctly identify the X-ray counterparts (at least for XMM!)
- properly study and characterize AGN population as a whole
First results from XMM-COSMOS
- logN-logS: excellent agreement with XRB modeling (Cappelluti et al. 2007)
- multicolor analysis of the “optically bright sample” suggests 80% agreement between spectroscopic, morphological and X-ray properties (as expected from unified schemes) – Brusa et al. 2007
- candidate obscured QSOs isolated through K/IRAC photometry among the optically “unidentified” (faint) sources
Hasinger+2007 Survey description and X-ray properties Cappelluti, Hasinger, Brusa et al. 2007 Source counts, LogN-LogS Brusa, Zamorani, Comastri, Hasinger et al. 2007 AGN identification, classification + multiwave properties Mainieri+2007 X-ray spectral analysis of point-like sources Miyaji+2007 Angular Correlation Function Finoguenov+2007 Study of groups and clusters in XMM-COSMOS
to appear in an ApJS special issue (2007) http://www.mpe.mpg.de/XMMCosmos/PAPERS/
..and many others projects on-going!including X-EROs (F. Civano), 3-D correlation function (R. Gilli), EXOs (A.
Koekemoer), photoz (M. Salvato), Type 1 QSO host (K. Jahnke) etc.
1) Where do we find all the things you showed? Hasinger+2007 Survey description and X-ray properties Cappelluti, Hasinger, Brusa et al. 2007 Source counts, LogN-LogS Brusa, Zamorani, Comastri, Hasinger et al. 2007 AGN identification, classification + multiwave properties Mainieri+2007 X-ray spectral analysis of point-like sources Miyaji+2007 Angular Correlation Function Finoguenov+2007 Study of groups and clusters in XMM-COSMOS
to appear in an ApJS special issue (2007) http://www.mpe.mpg.de/XMMCosmos/PAPERS/ ..and many others projects on-going!including X-EROs (F. Civano), 3-D correlation function (R. Gilli), EXOs (A.
Koekemoer), photoz (M. Salvato), Type 1 QSO host (K. Jahnke) etc.
2) When will the public data release be? January 2007 (XMM products + multiwave data – ACS, Subaru,