Title:  Weeding out AGN in IR-selected Starburst Galaxies

Speaker: 黄家声

Institute: 国家天文台

Host: 冯思轶

Time: 2025.3.6 周四 14:30

Location: 物理楼 552

Abstract:

For an IR-selected galaxy sample, It is well known that both AGN and star formation in galaxies contribute to their mid-IR luminosity. In this talk, I will present a study to try to separate AGN and star formation components. More recently, AGNs can be well resovled from their host galaxies in their JWST imaging studies. We will be able to single out AGN morphologically, and found the AGN mid-IR luminosities are correlated with their X-ray luminosies. Our studies will lead to more accurate estimation of stellar mass, star formation rate, and AGN luminosities with their IR photometry in the JWST era.

Bio:

黄家声，中国科学院国家天文台研究员，首席科学家，南美天文研究中心首席科学家。南京大学学士、硕士，夏威夷大学博士，德国马普天文研究所博士后，曾任美国哈佛-史密松天体物理中心高级科学家，主要研究方向为星系形成与演化。