J/ApJ/708/137 Broad-line AGNs in zCOSMOS survey (Merloni+, 2010)
On the cosmic evolution of the scaling relations between black holes and their
host galaxies: broad-line active galactic nuclei in the zCOSMOS survey
Merloni A., Bongiorno A., Bolzonella M., Brusa M., Civano F., Comastri A.,
Elvis M., Fiore F., Gilli R., Hao H., Jahnke K., Koekemoer A.M., Lusso E.,
Mainieri V., Mignoli M., Miyaji T., Renzini A., Salvato M., Silverman J.,
Trump J., Vignali C., Zamorani G., Capak P., Lilly S.J., Sanders D.,
Taniguchi Y., Bardelli S., Carollo C.M., Caputi K., Contini T., Coppa G.,
Cucciati O., de la Torre S., de Ravel L., Franzetti P., Garilli B.,
Hasinger G., Impey C., Iovino A., Iwasawa K., Kampczyk P., Kneib J.-P.,
Knobel C., Kovac K., Lamareille F., Le Borgne J.-F., Le Brun V.,
Le Fevre O., Maier C., Pello R., Peng Y., Perez Montero E., Ricciardelli E.,
Scodeggio M., Tanaka M., Tasca L.A.M., Tresse L., Vergani D., Zucca E.
<Astrophys. J. 708, 137 (2010)>
=2010ApJ...708..137M 2010ApJ...708..137M
ADC_Keywords: Active gal. nuclei ; Spectroscopy
Keywords: cosmology: observations - galaxies: active - galaxies: evolution -
quasars: emission lines
Abstract:
We report on the measurement of the physical properties (rest-frame
K-band luminosity and total stellar mass) of the hosts of 89
broad-line (type-1) active galactic nuclei (AGNs) detected in the
zCOSMOS survey in the redshift range 1<z<2.2. The unprecedented
multi-wavelength coverage of the survey field allows us to disentangle
the emission of the host galaxy from that of the nuclear black hole in
their spectral energy distributions (SEDs). We derive an estimate of
black hole masses through the analysis of the broad MgII emission
lines observed in the medium-resolution spectra taken with VIMOS/VLT
as part of the zCOSMOS project.
Description:
Our AGN sample consists of the subsample of objects in the zCOSMOS
bright spectroscopic catalog (Lilly et al. 2007, Cat. J/ApJS/172/70)
for which one or more broad emission lines have been identified in the
spectrum. The zCOSMOS bright sample consists, at the times of writing,
of 10644 (medium resolution, MR) spectra observed with the VIMOS
multi-object spectrograph on ESO-VLT in the COSMOS field.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 89 Rest-frame K-band magnitude and total stellar
masses of BLAGN hosts in COSMOS
table2.dat 44 89 MgII broad emission line FWHM, continuum luminosity,
and black hole mass for zCOSMOS type-1 AGN
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See also:
J/ApJ/688/826 : Radio and X-ray-emitting broad-line AGNs (Li+, 2008)
J/ApJS/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)
J/ApJS/172/46 : VLA-COSMOS survey. II. (Schinnerer+, 2007)
J/A+A/457/79 : VIMOS VLT Deep Survey: faint type-1 AGN sample (Gavignaud+,
2006)
J/AJ/131/84 : AGNs and host galaxies information (Vanden Berk+, 2006)
J/ApJ/614/91 : Black hole mass and accretion rate of AGNs (Wu+, 2004)
J/ApJ/613/682 : AGN central masses and broad-line region sizes (Peterson+,
2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- zCOSMOS VIMOS identification number
8- 17 F10.6 deg RAdeg Right ascension in decimal degrees (J2000)
19- 26 F8.6 deg DEdeg Declination in decimal degrees (J2000)
28- 32 F5.3 --- z Spectroscopic redshift (from Lilly et al. 2007,
Cat. J/ApJS/172/70)
34- 39 F6.2 mag KMag Absolute K-band magnitude (Vega)
41- 45 F5.3 --- fgal Ratio of galaxy to AGN luminosity in the
rest-frame K band, as derived from the SED
decomposition technique
47- 51 F5.2 [Msun] logM* Log of stellar mass
53 A1 --- l_logM* [0/1] Upper limit flag (1: upper limit) on logM*
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- zCOSMOS VIMOS identification number
8- 12 F5.2 mag imag Apparent i-band (AB) magnitude of the zCOSMOS
spectroscopy target (from Lilly et al. 2007,
Cat. J/ApJS/172/70)
14- 18 F5.2 Mm/s FWHM MgII emission line FWHM in units of 1000km/s
19 A1 --- f_FWHM [f] f: objects with clear narrow absorption
features in the MgII line
21- 24 F4.2 Mm/s e_FWHM FWHM uncertainty
26- 31 F6.2 10+33W L3000 Monochromatic continuum AGN luminosity at
3000Å in units of 1040erg/s
33- 36 F4.2 10+33W e_L3000 L3000 uncertainty
38- 41 F4.2 [Msun] logMBH Logarithm of the black hole mass (1)
43- 44 A2 --- Rf [RQ/RL] Radio flag (RQ: radio quiet or
RL: radio loud) (2)
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Note (1): Logarithm of the black hole mass, as computed with Equation (1),
adopting the (McGill et al. 2008ApJ...673..703M 2008ApJ...673..703M) calibration (see text
for details).
Note (2): RL are objects detected in the VLA/COSMOS Survey at 1.4GHz (Bondi
et al. 2008ApJ...681.1129B 2008ApJ...681.1129B; Schinnerer et al. 2007, Cat. J/ApJS/172/46).
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 31-Jan-2012