The Sloan Digital Sky Survey Reverberation Mapping Project: Quasar Host Galaxies at z < 0.8 from Image Decomposition
Hall, Patrick B.
Schneider, Donald P.
Ho, Luis C.
Trump, Jonathan R.
AffiliationUniv Arizona, Steward Observ
MetadataShow full item record
PublisherIOP PUBLISHING LTD
CitationMinghao Yue et al 2018 ApJ 863 21
Rights© 2018. The American Astronomical Society. All rights reserved.
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AbstractWe present the rest-frame UV and optical photometry and morphology of low-redshift broad-line quasar host galaxies from the Sloan Digital Sky Survey Reverberation Mapping project. Our sample consists of 103 quasars at z < 0.8, spanning a luminosity range of -25 <= Mg <= -17 mag. We stack the multi-epoch images in the g and i bands taken by the Canada-France-Hawaii Telescope. The combined g-band (i-band) images reach a 5 sigma depth of 26.2 (25.2) mag, with a typical PSF size of 0 ''.7 (0 ''.6). Each quasar is decomposed into a PSF and a Sersic profile, representing the central AGN and the host galaxy components, respectively. The systematic errors of the measured host galaxy flux in the two bands are 0.23 and 0.18 mag. The relative errors of the measured galaxy half-light radii (R-e) are about 13%. We estimate the rest-frame u- and g-band flux of the host galaxies, and find that the AGN-to-galaxy flux ratios in the g band are between 0.9 to 4.4 (68.3% confidence). These galaxies have high stellar masses M-* = 10(10)-10(11)M(circle dot). They have similar color with star-forming galaxies at similar redshifts, in consistent with AGN positive feedback in these quasars. We find that the M-*-M-BH relation in our sample is shallower than the local M-Bulge-M-BH relation. The Sersic indices and the M-*-R-e relation indicate that the majority of the host galaxies are disk-like.
VersionFinal published version
SponsorsNational Key R&D Program of China [2016YFA0400703]; National Science Foundation of China [11533001, 2016YFA0400702, 11473002, 11721303]; Alfred P. Sloan Research Fellowship; NSF [AST-1715579]; NSERC; STFC [ST/M001296/1]; Alfred P. Sloan Foundation; National Science Foundation; U.S. Department of Energy Office of Science; University of Arizona; Brazilian Participation Group; Brookhaven National Laboratory; Carnegie Mellon University; University of Florida; French Participation Group; German Participation Group; Harvard University; Instituto de Astrofisica de Canarias; Michigan State/Notre Dame/JINA Participation Group; Johns Hopkins University; Lawrence Berkeley National Laboratory; Max Planck Institute for Astrophysics; Max Planck Institute for Extraterrestrial Physics; New Mexico State University; New York University; Ohio State University; Pennsylvania State University; University of Portsmouth; Princeton University; Spanish Participation Group; University of Tokyo; University of Utah; Vanderbilt University; University of Virginia; University of Washington; Yale University