AUTHOR=Shirakata Hikari , Kawaguchi Toshihiro , Okamoto Takashi , Ishiyama Tomoaki 

TITLE=Theoretical Re-evaluations of Scaling Relations between SMBHs and Their Host Galaxies–2. Importance of AGN Feedback Suggested by Stellar Age–Velocity Dispersion Relation

JOURNAL=Frontiers in Astronomy and Space Sciences

VOLUME=4

YEAR=2017

URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2017.00013

DOI=10.3389/fspas.2017.00013

ISSN=2296-987X

ABSTRACT=<p>We present the galactic stellar age—velocity dispersion relation obtained from a semi-analytic model of galaxy formation. We divide galaxies into two populations: galaxies which have over-massive/under-massive black holes (BHs) against the best-fitting BH mass—velocity dispersion relation. We find that galaxies with larger velocity dispersion have older stellar ages. We also find that galaxies with over-massive BHs have older stellar ages. These results are consistent with observational results obtained from Martín-Navarro et al. (<xref ref-type="bibr" rid="B15">2016</xref>). We tested the model with weak AGN feedback and find that galaxies with larger velocity dispersion have a younger stellar age.</p>