Access to Astronomical Catalogues

← Click to display the menu
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 (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:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 74 2028 Type 2 AGN host galaxy properties derived from the SED fitting
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
Bytes Format Units Label Explanations
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)
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.
History: From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Jan-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© Unistra/CNRS

Contact