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dc.contributor.authorYue, Minghao
dc.contributor.authorJiang, Linhua
dc.contributor.authorShen, Yue
dc.contributor.authorHall, Patrick B.
dc.contributor.authorYu, Zhefu
dc.contributor.authorSchneider, Donald P.
dc.contributor.authorHo, Luis C.
dc.contributor.authorHorne, Keith
dc.contributor.authorPetitjean, Patrick
dc.contributor.authorTrump, Jonathan R.
dc.identifier.citationYue , M , Jiang , L , Shen , Y , Hall , P B , Yu , Z , Schneider , D P , Ho , L C , Horne , K , Petitjean , P & Trump , J R 2018 , ' The Sloan Digital Sky Survey Reverberation Mapping Project : quasar host galaxies at z <0.8 from image decomposition ' , Astrophysical Journal , vol. 863 , no. 1 , 21 .
dc.identifier.otherPURE: 255536117
dc.identifier.otherPURE UUID: da523cad-3522-4468-a3e4-1fa8c7bfebea
dc.identifier.otherWOS: 000441126000007
dc.identifier.otherScopus: 85051458357
dc.identifier.otherWOS: 000441126000007
dc.descriptionK.H. acknowledges support from STFC grant ST/M001296/1.en
dc.description.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 5σ 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 Sérsic 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 (Re) 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* = 1010-1011M(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*–MBH relation in our sample is shallower than the local MBulge-MBH relation. The Sérsic indices and the M*-Re relation indicate that the majority of the host galaxies are disk-like.
dc.relation.ispartofAstrophysical Journalen
dc.rights© 2018. The American Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at:
dc.subjectGalaxies: activeen
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: nucleien
dc.subjectQuasars: generalen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleThe Sloan Digital Sky Survey Reverberation Mapping Project : quasar host galaxies at z <0.8 from image decompositionen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.St Andrews Centre for Exoplanet Scienceen
dc.description.statusPeer revieweden

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