J/A+A/602/A123 AGN vs. host galaxy properties in COSMOS field (Lanzuisi+, 2017)
AGN vs. host galaxy properties in the COSMOS field.
Lanzuisi G., Delvecchio I., Berta S., Brusa M., Comastri A., Gilli R.,
Gruppioni C., Marchesi S., Perna M., Pozzi F., Salvato M., Symeonidis M.,
Vignali C., Vito F., Volonteri M., Zamorani G.
<Astron. Astrophys. 602, A123 (2017)>
=2017A&A...602A.123L 2017A&A...602A.123L (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Galaxies, IR ; X-ray sources
Keywords: galaxies: active - galaxies: nuclei - galaxies: evolution -
infrared: galaxies - X-ray: galaxies
Abstract:
The coeval AGN and galaxy evolution and the observed local relations
between SMBHs and galaxy properties suggest some connection or
feedback between SMBH growth and galaxy build-up. We looked for
correlations between properties of X-ray detected AGN and their FIR
detected host galaxies, to find quantitative evidences for this
connection, highly debated in the latest years. We exploit the rich
multi-wavelength data set available in the COSMOS field for a large
sample (692 sources) of AGN and their hosts, in the redshift range
0.1<z<4. We use X-ray data to select AGN and determine their
properties (intrinsic luminosity and nuclear obscuration), and
broad-band SED fitting to derive host galaxy properties (stellar mass
M* and star formation rate SFR). We find that the AGN 2-10keV
luminosity (LX) and the host 8-1000um star formation luminosity
(LSFIR) are significantly correlated. However, the average host LSFIR
has a flat distribution in bins of AGN LX, while the average AGN LX
increases in bins of host LSFIR, with logarithmic slope of ∼0.7, in
the redshifts range 0.4<z<1.2. We also discuss the comparison between
the distribution of these two quantities and the predictions from
hydro-dynamical simulations. Finally we find that the average column
density (NH) shows a positive correlation with the host M*, at all
redshifts, but not with the SFR (or LSFIR). This translates into a
negative correlation with specific SFR. Our results are in agreement
with the idea that BH accretion and SF rates are correlated, but occur
with different variability time scales. The presence of a positive
correlation between NH and host M* suggests that the X-ray NH is not
entirely due to the circum-nuclear obscuring torus, but may also
include a contribution from the host galaxy.
Description:
Multiwavelength properties of the 692 AGN-host systems detected both
in the X-ray and in the FIR (the X-FIR sample). For each galaxy are
given ID from Capak et al., 2007, Cat. II/284; right ascension and
declination of the optical/IR counterpart; redshift; redshift flag (s
for spectroscopic or p photometric); Log(LSFIR) with 1sigma errors;
Log(M*) with 1sigma errors; SFR derived from LSF; Log(NH) with 1sigma
errors or upper limits; Log(LX) with 1sigma errors; Log(LBol) computed
from LX using Marconi et al. (2004MNRAS.351..169M 2004MNRAS.351..169M); XMM-COSMOS and
Chandra-COSMOS ID.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 118 692 Multiwavelength properties of the 692 sources
in the X-FIR sample
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See also:
II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)
J/ApJS/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)
J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)
J/A+A/497/635 : XMM-Newton wide-field survey in COSMOS field
(Cappelluti+, 2009)
J/ApJ/696/1195 : COSMOS AGN spectroscopic survey. I. (Trump+, 2009)
J/A+A/512/A34 : XMM-COSMOS Type 1 AGNs (Lusso+, 2010)
J/A+A/584/A106 : Catalogues of variable AGNs (Simm+, 2015)
J/ApJ/716/348 : The XMM-Newton survey of the COSMOS field (Brusa+, 2010)
J/A+A/534/A110 : Type-2 AGN from XMM-COSMOS bolometric output (Lusso+, 2011)
J/ApJ/742/61 : Photometric redshift of AGNs from XMM- and C-COSMOS
(Salvato+ 2011)
J/ApJ/759/6 : SEDs of type I AGN in COSMOS. I. XMM-COSMOS (Elvis+, 2012)
J/MNRAS/438/1288 : SEDs of type I AGN in XMM-COSMOS. II. (Hao+, 2014)
J/ApJS/184/158 : Chandra COSMOS survey I. (Elvis+, 2009)
J/ApJS/201/30 : The Chandra COSMOS survey. III. (Civano+, 2012)
J/ApJ/819/62 : The COSMOS-Legacy Survey (CLS) catalog (Civano+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- ID ID from Capak et al. (2007, Cat. II/284),
Photo-z COSMOS identifier from
Ilbert el al. (2009, Cat. J/ApJ/690/1236)
9- 17 F9.5 deg RAdeg Right ascension (J2000.0)
19- 26 F8.6 deg DEdeg Declination (J2000.0)
28- 33 F6.4 --- z Redshift
35- 38 A4 --- Flag Redshift flag (spectroscopic or photometric)
40- 44 F5.2 [10-7W] logLIR Log of IR luminosity from SF
46- 49 F4.2 [10-7W] e_logLIR Error in Log space of LIR
51- 55 F5.2 [Msun] logM* Log of the stellar mass
57- 60 F4.2 [Msun] e_logM* Error in Log space of M*
62- 66 F5.2 [Msun/yr] logSFR Log of the Star formation rate
68 A1 --- l_logNH Upper limit flag on logNH
69- 73 F5.2 [cm-2] logNH Log of X-ray column density
75- 79 F5.2 [cm-2] e_logNH ?=-1 Error low in Log space on column
density (1)
81- 85 F5.2 [cm-2] E_logNH ?=-1 Error up in Log space on column
density (1)
87- 91 F5.2 [10-7W] logLX Log of X-ray luminosity
93- 96 F4.2 [10-7W] e_logLX Error in Log space on LX
98-102 F5.2 [10-7W] logLbol Log of Bolometric luminosity from Marconi et
al. (2004MNRAS.351..169M 2004MNRAS.351..169M)
104-108 I5 --- XMMID ? ID from XMM-Cosmos Catalog (Brusa et al.,
2010, Cat. J/ApJ/716/348),
XMMC NNNNN in Simbad
110-118 A9 --- CHAID ID from Chandra-Cosmos Legacy
(Marchesi et al., 2016ApJ...832...70A 2016ApJ...832...70A, from
Civano et al., 2016, Cat. J/ApJ/819/62),
lid_NNNN or cid_NNNN
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Note (1): For sources with e_logNH and E_logNH=-1 the value of LogNH is the
upper-limit on column density.
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Acknowledgements:
Giorgio Lanzuisi, giorgio.lanzuisi2(at)unibo.it
(End) Giorgio Lanzuis [DIFA-Unibo, Italia], Patricia Vannier [CDS] 08-Mar-2017