J/ApJ/841/102 Type 2 AGN host galaxies in Chandra-COSMOS (Suh+, 2017)
Type 2 AGN host galaxies in the Chandra-COSMOS Legacy Survey:
no evidence of AGN-driven quenching.
Suh H., Civano F., Hasinger G., Lusso E., Lanzuisi G., Marchesi S.,
Trakhtenbrot B., Allevato V., Cappelluti N., Capak P.L., Elvis M.,
Griffiths R.E., Laigle C., Lira P., Riguccini L., Rosario D.J., Salvato M.,
Schawinski K., Vignali C.
<Astrophys. J., 841, 102-102 (2017)>
=2017ApJ...841..102S 2017ApJ...841..102S (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; X-ray sources ; Stars, masses ; Ultraviolet ;
Photometry, infrared
Keywords: black hole physics; galaxies: active; galaxies: nuclei;
quasars: general
Abstract:
We investigate the star formation properties of a large sample of
∼2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host
galaxies out to z∼3 in the Chandra COSMOS Legacy Survey in order to
understand the connection between the star formation and nuclear
activity. Making use of the existing multi-wavelength photometric data
available in the COSMOS field, we perform a multi-component modeling
from far-infrared to near-ultraviolet using a nuclear dust torus
model, a stellar population model and a starburst model of the
spectral energy distributions (SEDs). Through detailed analyses of
SEDs, we derive the stellar masses and the star formation rates (SFRs)
of Type 2 AGN host galaxies. The stellar mass of our sample is in the
range of 9<logMstellar/M☉<12 with uncertainties of ∼0.19dex.
We find that Type 2 AGN host galaxies have, on average, similar SFRs
compared to the normal star-forming galaxies with similar Mstellar
and redshift ranges, suggesting no significant evidence for
enhancement or quenching of star formation. This could be interpreted
in a scenario, where the relative massive galaxies have already
experienced substantial growth at higher redshift (z>3), and grow
slowly through secular fueling processes hosting moderate-luminosity
AGNs.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 74 2028 Type 2 AGN host galaxy properties derived from
the SED fitting
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See also:
B/chandra : The Chandra Archive Log (CXC, 1999-2014)
II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)
J/ApJS/139/369 : Chandra Deep Field South. 1 Ms catalog (Giacconi+, 2002)
J/ApJ/666/806 : SED of Spitzer quasars (QUEST) (Netzer+, 2007)
J/ApJS/184/158 : Chandra COSMOS survey I. (Elvis+, 2009)
J/ApJ/720/368 : Color-magnitude relations of galaxies in CDFs (Xue+, 2010)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/A+A/534/A110 : Type-2 AGN from XMM-COSMOS bolometric output (Lusso+, 2011)
J/A+A/535/A80 : Type-2 QSOs in XMM-COSMOS (Mainieri+, 2011)
J/ApJ/759/6 : SEDs of type I AGN in COSMOS. I. XMM-COSMOS (Elvis+, 2012)
J/ApJ/759/139 : Herschel+MIPS photom. of GOODS sources (Kirkpatrick+, 2012)
J/ApJS/201/30 : The Chandra COSMOS survey. III. (Civano+, 2012)
J/MNRAS/434/3104 : QSOs SED shapes from optical to NIR (Hao+, 2013)
J/ApJ/763/133 : Broad-line AGN with host galaxy colors (Trump+, 2013)
J/ApJ/815/129 : X-ray AGNs with Subaru/FMOS NIR observations (Suh+, 2015)
J/A+A/591/A136 : Galaxies & QSOs FIR size & surface brightness (Lutz+, 2016)
J/ApJ/817/118 : SFR-M* relation from ZFOURGE (Tomczak+, 2016)
J/ApJ/819/62 : The COSMOS-Legacy Survey (CLS) catalog (Civano+, 2016)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Chandra source identifier (1)
12- 16 F5.2 [Msun] logM* [8.8/12.6] log host galaxy stellar mass
18- 21 F4.2 [Msun] E_logM* [0/2] Upper uncertainty in logM*
23- 26 F4.2 [Msun] e_logM* [0/2] Lower uncertainty in logM*
28- 33 F6.3 [Msun/yr] logSFR [-0.7/3.7] log host galaxy star formation
rate
35- 38 F4.2 [Msun/yr] E_logSFR [0/2] Upper uncertainty in logSFR
40- 43 F4.2 [Msun/yr] e_logSFR [0/3] Lower uncertainty in logSFR
45- 49 F5.2 [10-7W] logL2-10 [42/45.5]?=99 log absorption-corrected
2-10keV luminosity (in erg/s)
51- 55 F5.2 [10-7W] logL2300 [41.8/47] log rest-frame UV luminosity
at 2300A (3)
57- 61 F5.2 [10-7W] logL5100 [42.4/45.8] log rest-frame UV luminosity
at 5100A (3)
63- 67 F5.2 [10-7W] logL6 [42/46.2]?=0 log rest-frame 6um
luminosity (4)
69- 74 F6.2 [10-7W] logLIR [-46.6/46.4] log 8-1000um luminosity (5)
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Note (1): From Civano et al. (2016, J/ApJ/819/62 ;
<[CMC2016] lid NNNNN> in Simbad or
for cid_NNNNN: <[ECV2009] NNNNN> in Simbad)
Note (3): Of the host galaxy component. In units of erg/s.
Note (4): Of the AGN component. In units of erg/s.
Note (5): Of the start-burst components. In units of erg/s. Negative values
represent the maximum SFRs of the Herschel-undetected sources.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Jan-2018