J/ApJ/857/27 A catalog of post-starburst QSOs from SDSS-DR7Q (Wei+, 2018)
A catalog of post-starburst quasars from Sloan Digital Sky Survey Data Release7.
Wei P., Gu Y., Brotherton M.S., Shi Y., Chen Y.
<Astrophys. J., 857, 27 (2018)>
=2018ApJ...857...27W 2018ApJ...857...27W
ADC_Keywords: QSOs; Photometry, SDSS; Redshifts; Equivalent widths;
Active gal. nuclei
Keywords: galaxies: active ; galaxies: interactions ; galaxies: starburst
Abstract:
We present a catalog of nearby (z≤0.5) quasars with significant
features of post-starburst stellar populations in their optical
spectra: so-called post-starburst quasars, or PSQs. After carefully
decomposing spectra from the Sloan Digital Sky Survey (SDSS) Data
Release 7 (DR7) Quasar Catalog into quasar and host-galaxy components,
we derive a sample of 208 PSQs. Their host-galaxy components have
strong Hδ absorption (EW≥6Å) indicating a significant
contribution of an intermediate-aged stellar population formed in a
burst of star formation within the past 1Gyr, which makes them
potentially useful for studying the co-evolution of supermassive black
holes and their host galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 102 208 The properties of post-starburst quasars (PSQs)
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See also:
VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)
J/ApJ/663/81 : SED of hard X-ray selected AGN in XMDS (Polletta+, 2007)
J/A+A/528/A35 : Infrared luminosity in GOODS fields (Magnelli+, 2011)
J/ApJS/194/45 : QSO properties from SDSS-DR7 (Shen+, 2011)
J/ApJ/757/13 : IR SEDs of 24um z∼0.3-3 galaxies (Sajina+, 2012)
J/MNRAS/420/1684 : End of red sequence galaxies in Galaxy Zoo (Wong+, 2012)
J/ApJS/214/23 : IR spectra and photometry of z<0.5 quasars (Shi+, 2014)
J/ApJ/811/91 : SDSS-RM project: z<1 QSO host galaxies (Matsuoka+, 2015)
J/ApJ/819/L27 : Stellar masses of optical & IR QSO hosts (Zhang+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- SDSS SDSS DR7 Name (HHMMSS.ss+DDMMSS.s; J2000)
20- 29 F10.6 deg RAdeg [0.2/347] Right Ascension (J2000)
31- 40 F10.7 deg DEdeg [-8.8/68.5] Declination (J2000)
42- 50 F9.7 --- zspec [0.09/0.5] Spectroscopic redshift,
from SDSS-DR7Q (Schneider+, 2010, VII/260)
52- 60 F9.6 mag imag [15.9/19.2] SDSS i band AB magnitude
62- 71 F10.6 mag iMag [-25/-22.2] SDSS i band absolute magnitude
73- 81 F9.7 --- fAGN [0.06/0.8] Fractional AGN contribution
83- 93 F11.8 0.1nm EWHd [-2/7.5] Equivalent width, Hδ, angstroms
95-102 F8.5 0.1nm EWHd-host [5.8/10.6] Equivalent width, Hδ, host
in angstroms units
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 15-Feb-2019