A catalog of post-starburst QSOs from SDSS-DR7Q Virtual Observatory Resource

Authors

1. Wei P.
2. Gu Y.
3. Brotherton M.S.
4. Shi Y.
5. Chen Y.

Published by

CDS

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 H{delta} absorption (EW>=6{AA}) 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.

Keywords

1. quasars
2. visible-astronomy
3. sloan-photometry
4. redshifted
5. line-intensities
6. active-galactic-nuclei

Bibliographic source Bibcode

2018ApJ...857...27W

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ivo://CDS.VizieR/J/ApJ/857/27

Document Object Identifer DOI

doi:10.26093/cds/vizier.18570027

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