Wednesday.
1503.08893
Properties of galaxies around AGNs with most massive supermassive black hole revealed by the clustering analysis
Shirasaki, et al
Main results: (1) DM halo mass increases by one order of magnitude form the lower mass group to the highest mass group; (2) the environment around AGNs with the most massive SMBH (Mbh>1e9 Msun) is dominated by red sequence galaxies; (3) marginal indication of decline in luminosity function at dimmer side of M>-19.5 mag is found for galaxies around AGNs with Mbh=1e8.2-9 Msun and nearest redshift group (z=0.1-0.3). These results indicate that AGNs with the most massive SMBHs reside in haloes where large fraction of galaxies have been transited to the red sequence probably due to the AGN feedback in each galaxy. The accretion of hot halo gas can be the most plausible mechanism to fuel the SMBHs above ~1e9 Msun.
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