题目：EVOLUTION OF SMG OVERDENSITIES AROUND HZRGS BETWEEN REDSHIFT 4.5 AND 1.5 PROBED WITH SCUBA-2

　　报告人：Dr. Thomas Greve 英国伦敦大学学院（UCL）高级研究员

　　摘要：We have mapped the extended submillimeter environments around 14 High-z Radio Galaxies (HzRGs) at redshifts 4.5, 3.5, 2.5 and 1.5 using SCUBA-2 on the James Clerk Maxwell Telescope. This constitutes one of the largest uniform submillimeter surves of HzRG environments to date. In most cases we detect clear overdensities of submillimeter galaxies (SMGs) around the radio galaxies, confirming these to be highly mass biased regions in the universe. We have delineated the average strength of these SMG-overdensities as a function of redshift and find tentative evidence of evolution. The radial profile of the SMG-overdensity as measured from the radio galaxy and outwards exhibit systematic features which may also depend on redshift and radio luminosity of the central radio galaxy.

　　报告时间：2016.5.11日（周三） 上午10：00

　　报告地点：紫台办公大楼619会议室

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