J/ApJ/934/130 PS1 3π analysis of z∼0.3 QSOs host galaxies (Zhuang+, 2022)
The star-forming main sequence of the host galaxies of low-redshift quasars.
Zhuang M.-Y., Ho L.C.
<Astrophys. J., 934, 130 (2022)>
=2022ApJ...934..130Z 2022ApJ...934..130Z
ADC_Keywords: QSOs; Morphology; Photometry, ugriz; Redshifts; Black holes;
Active gal. nuclei
Keywords: Active galactic nuclei ; Galaxy evolution ; Galaxy structure ;
Supermassive black holes ; AGN host galaxies ; Quasars
Abstract:
We investigate the star-forming main sequence of the host galaxies of
a large, well-defined sample of 453 redshift ∼0.3 quasars with
previously available star formation rates by deriving stellar masses
from modeling their broadband (grizy) spectral energy distribution. We
perform two-dimensional, simultaneous, multi-filter decomposition of
Pan-STARRS1 3π Steradian Survey images to disentangle the active
galactic nucleus (AGN) from its host galaxy, by explicitly
considering, for the first time, the wavelength variation of galaxy
structures. We quantify the Sersic profiles and sizes of the host
galaxies from mock AGNs generated from both real and idealized
galaxies. Detailed morphological classifications of the calibration
galaxy sample using Hubble Space Telescope images enable us to
estimate crude morphological types of the quasars. Although the
majority (∼60%) of the quasars are hosted by bulge-dominated,
early-type galaxies, a substantial fraction (∼40%) reside in
disk-dominated, late-type galaxies, suggesting that at least in these
systems major mergers have not played a significant role in regulating
their AGN activity, in agreement with recent simulations and
observations of nearby quasars. The vast majority (∼90%) of the
quasars have star formation rates that place them on or above the
galaxy star-forming main sequence, with more rapidly accreting AGNs
displaced further above the main sequence. Quasar host galaxies
generally follow the stellar mass-size relation defined by inactive
galaxies, both for late-type and early-type systems, but roughly 1/3
of the population has smaller sizes at a given stellar mass,
reminiscent of compact star-forming galaxies at higher redshift.
Description:
The 3π Steradian Survey of PS1 (Chambers+ 2016, II/349) imaged
three-quarters of the sky north of decl. -30° with five filters
(grizy) and ∼12 epochs per filter. The stacked images from this
nearly four-year survey have a median seeing of 1.31", 1.19",
1.11", 1.07", and 1.02", and a mean 5σ point-source
sensitivity of 23.3, 23.2, 23.1, 22.3, and 21.4mag (AB) for grizy,
respectively.
We use the stacked images, combined in each of the five bands, from
the second data release (DR2) of the PS1 3π survey.
See Section 2.2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 109 305 Basic properties of the final sample
table3.dat 106 305 Fluxes and derived properties of the final sample
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See also:
II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/ApJ/269/352 : Quasar evolution (Schmidt+, 1983)
J/ApJS/166/470 : SDSS-Spitzer type I QSOs IR photometry (Richards+, 2006)
J/AJ/131/84 : AGNs and host galaxies information (Vanden Berk+, 2006)
J/ApJS/172/615 : GALFIT result for GEMS galaxies (Haussler+, 2007)
J/ApJ/691/705 : AGN host galaxy morphologies in COSMOS (Gabor+, 2009)
J/ApJS/184/218 : The zCOSMOS 10k-bright spectroscopic sample (Lilly+, 2009)
J/ApJ/708/137 : Broad-line AGNs in zCOSMOS survey (Merloni+, 2010)
J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)
J/ApJ/742/68 : HST observations of low-mass BH host galaxies (Jiang+, 2011)
J/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)
J/MNRAS/435/623 : Multiwavelength measurement of galaxy structure (Vika, 2013)
J/ApJ/794/120 : Sloan Digital Sky Survey coadd. Stripe 82 (Annis+, 2014)
J/MNRAS/440/476 : Low-redshift quasars in SDSS Stripe 82 (Falomo+, 2014)
J/ApJ/811/91 : SDSS-RM project: z<1 QSO host galaxies (Matsuoka+, 2015)
J/ApJS/224/24 : The COSMOS2015 catalog (Laigle+, 2016)
J/MNRAS/478/4238 : Properties of IR-bright AGNs (Dai+, 2018)
J/ApJ/854/158 : z<0.5 PG quasars IR energy distributions (Shangguan+, 2018)
J/ApJS/244/34 : The CGS. VIII. R-band images of disk galaxies (Gao+, 2019)
J/ApJS/243/21 : Broad-line AGN from SDSS-DR7 (Liu+, 2019)
J/ApJ/870/104 : 1-500um obs. of nearby luminous IR gal. (Shangguan+, 2019)
J/ApJ/888/78 : The ACS-AGN Catalog: AGN luminosity vs SFR (Stemo+, 2020)
J/ApJS/256/40 : HST imaging survey of low-z Swift-BAT AGNs (Kim+, 2021)
J/ApJS/252/29 : BAT AGN Sp. Survey. XX. Molecular gas (Koss+, 2021)
J/ApJ/910/124 : Star formation rates of low-z QSOs from 1-500um (Xie+, 2021)
J/ApJ/925/70 : Morphological asymmetry of massive low-z gal. (Zhao+, 2022)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/305] Running sequence number
5- 8 A4 --- --- [SDSS]
10- 28 A19 --- SDSS Object identifier (JHHMMSS.ss+DDMMSS.s)
30- 37 F8.6 --- z [0.3/0.4] Spectroscopic redshift
39- 49 F11.7 deg RAdeg [7/351.7] Right Ascension (J2000)
51- 64 F14.10 deg DEdeg [-10.7/68] Declination (J2000)
66- 69 F4.2 [Msun] logMBH [6.71/9.55] Log black hole mass (1)
71- 75 F5.2 [10-7W] logLbol [44.26/47.26] Log AGN bolometric
luminosity (2)
77- 80 F4.2 [10-7W] e_logLbol [0.12/0.35] Uncertainty in logLbol
82- 86 F5.2 [Msun/yr] logBHAR [-1.56/1.43] Log black hole accretion
rate (2)
88- 91 F4.2 [Msun/yr] e_logBHAR [0.12/0.35] Uncertainty in logBHAR
93- 97 F5.2 [-] logEdd [-2.36/1.15] Log Eddington ratio (2) (3)
99- 103 F5.2 [Msun/yr] logSFR [-0.99/3.49] Log star formation rate (2)
105- 109 F5.2 [Msun/yr] e_logSFR [0.07/10.4] Uncertainty in logSFR (2)
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Note (1): Estimated using broad Hα from Liu et al. (2019ApJS..242...21L 2019ApJS..242...21L).
We adopt a conservative uncertainty of 0.5dex following
Kim & Ho (2019ApJ...876...35K 2019ApJ...876...35K).
Note (2): From Zhuang & Ho (2020ApJ...896..108Z 2020ApJ...896..108Z).
Note (3): whose uncertainty is dominated by the uncertainty in the
black hole mass.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq [1/305] Running sequence number
5- 9 F5.3 mJy Fg [0.003/0.21]? AGN host galaxy g band flux
density (1)
11- 15 F5.3 mJy e_Fg [0.001/0.07]? Uncertainty in Fg
17- 21 F5.3 mJy Fr [0.014/0.33]? AGN host galaxy r band flux
density (1)
23- 27 F5.3 mJy e_Fr [0.005/0.09]? Uncertainty in Fr
29- 33 F5.3 mJy Fi [0.024/0.43] AGN host galaxy i band flux
density (1)
35- 39 F5.3 mJy e_Fi [0.004/0.09] Uncertainty in Fi
41- 45 F5.3 mJy Fz [0.038/0.65] AGN host galaxy z band flux
density (1)
47- 51 F5.3 mJy e_Fz [0.008/0.2] Uncertainty in Fz
53- 57 F5.3 mJy Fy [0.02/0.7]? AGN host galaxy y band flux
density (1)
59- 63 F5.3 mJy e_Fy [0.01/0.2]? Uncertainty in Fy
65- 69 F5.2 [Msun] logMs [10.3/12] Log stellar mass
71- 74 F4.2 [Msun] e_logMs [0.14/0.4] Uncertainty in logMs
76- 79 F4.2 --- n [0.38/9.6]? Sersic index (2)
81- 84 F4.2 --- e_n [0.16/4.2]? Uncertainty in n
86- 90 F5.2 kpc Re [1.7/23]? Half-light radius (2)
92- 96 F5.2 kpc e_Re [0.5/11]? Uncertainty in Re
98- 106 A9 --- Morph Morphological classification based on n & Re
("early": 175 occurrences;
"late":121 occurrences; or "uncertain")
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Note (1): After correction for Galactic extinction and systematic
effects (Section 3.2).
Note (2): in the i band after correction for systematic effects (Section 3.2).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 24-Jul-2024