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 r0= 5.8+0.8-0.6 h-1 Mpc (for the fixed slope parameter γ = 1.8). We also derived a dependence of r0 on the BH mass, MBH, and found an indication of an increasing trend of r0 at MBH > 108 M☉. It is suggested that the growth of SMBHs is mainly driven by interactions with the surrounding environment for MBH > 108 M☉. On the other hand, at MBH ∼< 108 M☉, 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