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Title: A CROSS-CORRELATION ANALYSIS OF ACTIVE GALACTIC NUCLEI AND GALAXIES USING VIRTUAL OBSERVATORY: DEPENDENCE ON VIRIAL MASS OF SUPERMASSIVE BLACK HOLE

We present results of the cross-correlation analysis between active galactic nuclei (AGNs) and galaxies at redshift 0.1-1. We obtain data of ∼10, 000 Sloan Digital Sky Survey AGNs in which their virial masses with a supermassive black hole (SMBH) were estimated. The UKIDSS galaxy samples around the AGNs were obtained using the virtual observatory. The scale length of AGN-galaxy cross-correlation for all of the samples is measured to be r{sub 0}= 5.8{sup +0.8}{sub -0.6} h{sup -1} Mpc (for the fixed slope parameter γ = 1.8). We also derived a dependence of r{sub 0} on the BH mass, M{sub BH}, and found an indication of an increasing trend of r{sub 0} at M{sub BH} > 10{sup 8} M{sub ☉}. It is suggested that the growth of SMBHs is mainly driven by interactions with the surrounding environment for M{sub BH} > 10{sup 8} M{sub ☉}. On the other hand, at M{sub BH} ∼< 10{sup 8} M{sub ☉}, we did not find the BH mass dependence. This would imply that for less massive BHs, the mass growth process can be different from that for massive BHs.
Authors:
; ; ;  [1]
  1. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
Publication Date:
OSTI Identifier:
22270930
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 775; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTRONOMY; ASTROPHYSICS; BLACK HOLES; CORRELATIONS; GALAXIES; GALAXY NUCLEI; MASS; QUASARS; RED SHIFT; UNIVERSE