报告题目：The relationship between black hole accretion luminosity and host star formation in dusty AGNs

　　报告人：Dr. Yu Sophia DAI 戴昱( IPAC/Caltech）

　　摘要：We study the relationship between X-ray luminosity and the star formation rate (SFR) for a sample of dusty active galactic nuclei (AGNs) at 0.04 < z < 3.3. Our sample consists of dusty AGNs detected in both X-ray and far-Infrared by XMM and Herschel in the XMM-LSS field. All of the selected targets have spectroscopic redshifts and broad band photometry that allows black hole mass and spectral energy distribution (SED) analysis. We compare their X-ray and AGN-removed infrared luminosities, and study the dependence of the observed relation on luminosity, obscuration, supermassive black hole mass, Eddington ratio, and the fraction of AGN contribution to infrared luminosity. We find a positive correlation between L_X and SFR up to z=3. This is consistent with the secular evolution scenario, in which the nucleus and galaxy are fueled by the same gas supply at a relatively constant ratio. We also investigate the effect of binning choices on the observed trend. Comparing our results to those in the literature, we propose a unified physical scenario that explains the observed L_X-SFR connection once sample selection bias is accounted for.

　　报告时间：2015年10月30日（星期五）上午10：00

　　报告地点：紫台办公大楼 619 会议室

　　联系人：马红君（83332210）

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