A Catalog of Post-starburst Quasars from Sloan Digital Sky Survey Data Release 7

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...

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Published inThe Astrophysical journal Vol. 857; no. 1; pp. 27 - 34
Main Authors Wei, Peng, Gu, Yang, Brotherton, Michael S., Shi, Yong, Chen, Yanmei
Format Journal Article
LanguageEnglish
Published Philadelphia The American Astronomical Society 10.04.2018
IOP Publishing
Subjects
Astrophysics
Black holes
Galactic evolution
Galaxies
galaxies: active
galaxies: interactions
galaxies: starburst
Quasars
Sky surveys (astronomy)
Star & galaxy formation
Star formation
Starbursts
Stellar populations
Supermassive black holes
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Summary: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 ≥ 6 ) indicating a significant contribution of an intermediate-aged stellar population formed in a burst of star formation within the past 1 Gyr, which makes them potentially useful for studying the co-evolution of supermassive black holes and their host galaxies.
Bibliography:Galaxies and Cosmology
AAS05549
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/aab499