J/ApJ/711/284 Galaxy Zoo: AGN host galaxies (Schawinski+, 2010)
Galaxy Zoo: the fundamentally different co-evolution of supermassive black holes
and their early- and late-type host galaxies.
Schawinski K., Urry C.M., Virani S., Coppi P., Bamford S.P., Treister E.,
Lintott C.J., Sarzi M., Keel W.C., Kaviraj S., Cardamone C.N.,
Masters K.L., Ross N.P., Andreescu D., Murray P., Nichol R.C.,
Raddick M.J., Slosar A.Z., Szalay A.S., Thomas D., Vandenberg J.
<Astrophys. J., 711, 284-302 (2010)>
=2010ApJ...711..284S 2010ApJ...711..284S
ADC_Keywords: Active gal. nuclei ; Galaxies, optical ; Morphology ;
Photometry, SDSS
Keywords: galaxies: active - galaxies: evolution - galaxies: formation -
galaxies: Seyfert
Abstract:
We use data from the Sloan Digital Sky Survey and visual
classifications of morphology from the Galaxy Zoo project to study
black hole growth in the nearby universe (z<0.05) and to break down
the active galactic nucleus (AGN) host galaxy population by color,
stellar mass, and morphology. We find that the black hole growth at
luminosities L[OIII]>1040erg/s in early- and late-type galaxies is
fundamentally different. AGN host galaxies as a population have a
broad range of stellar masses (1010-1011M☉), reside in the
green valley of the color-mass diagram and their central black holes
have median masses around 106.5M☉. However, by comparing
early- and late-type AGN host galaxies to their non-active
counterparts, we find several key differences: in early-type galaxies,
it is preferentially the galaxies with the least massive black holes
that are growing, while in late-type galaxies, it is preferentially
the most massive black holes that are growing. At high-Eddington
ratios (L/LEdd>0.1), the only population with a substantial fraction
of AGNs are the low-mass green valley early-type galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 92 942 A catalog of AGN host galaxies
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See also:
II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
J/other/RMxAA/47.361 : AGN activity in isolated SDSS galaxies (Coziol+, 2011)
J/MNRAS/410/166 : Morphological types from Galaxy Zoo 1 (Lintott+, 2011)
J/MNRAS/405/783 : Passive red spirals in Galaxy Zoo (Masters+, 2010)
J/MNRAS/396/818 : Blue early-type galaxies in Galaxy Zoo (Schawinski+, 2009)
J/ApJ/699/L43 : FIRST-NVSS-SDSS AGN sample catalog (Smolcic+, 2009)
J/ApJ/697/506 : Mid-infrared galaxy luminosity function from AGN (Dai+, 2009)
J/AJ/131/84 : AGNs and host galaxies information (Vanden Berk+, 2006)
http://www.sdss.org/ : SDSS home page
http://zoo1.galaxyzoo.org/ : Galaxy Zoo home page
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Running index number
5- 22 A18 --- SDSS SDSS-DR7 object identification (ObjID)
24- 25 I2 h RAh Hour of Right Ascension (J2000)
27- 28 I2 min RAm Minute of Right Ascension (J2000)
30- 33 F4.1 s RAs Second of Right Ascension (J2000)
35 A1 --- DE- Sign of the Declination (J2000)
36- 37 I2 deg DEd Degree of Declination (J2000)
39- 40 I2 arcmin DEm Arcminute of Declination (J2000)
42- 45 F4.1 arcsec DEs Arcsecond of Declination (J2000)
47 A1 --- cl [eli] Galaxy Zoo morphology code: e=early-type,
l=late-type, i=indeterminate-type (see sec.2.3)
49- 56 F8.6 --- z SDSS-DR7 redshift
58- 62 F5.2 [Msun] Mstar Stellar mass
64- 68 F5.1 km/s sigma Velocity dispersion σ
70- 74 F5.2 km/s e_sigma Uncertainty in sigma
76- 79 F4.2 mag u-r SDSS-DR7 (u-r) color
81- 85 F5.2 [10-7W] logL Log of the [OIII] luminosity; erg/s
87- 92 F6.3 [-] logL/s4 Log of [OIII] luminosity/σ4
(units unspecified)
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 02-Apr-2012