Ultra-Diffuse Galaxies (UDGs) represent an extraordinary class of galaxies with effective radii comparable to the Milky Way yet stellar masses only 1/100 to 1/1000 of our Galaxy. Found in a variety of cosmic environments—from galaxy clusters and groups to large-scale filaments and cosmic voids—their origins remain a subject of intense debate, positioning them at the forefront of extragalactic astrophysics. In this talk, I will highlight recent advances from our systematic investigations into UDG properties and formation mechanisms, which critically evaluate existing UDG formation models through observations and simulations. Our work provides pivotal insights into the evolutionary pathways of these enigmatic systems, challenging conventional paradigms of galaxy formation.
BIO
容昱，中国科学技术大学天文学系特任研究员，中科院百人、安徽省海外引才创新人才。2016年博士毕业于中国科学院高能物理研究所，2016-2017年于中国科学院国家天文台计算宇宙学研究团组从事博士后研究，此后先后获得CAS-CONICYT及FONDECYT Fellow于智利天主教大学天体物理系复杂恒星系统研究团组开展博士后研究工作。2022年起入职中科大天文学系。主要从事特殊星系形成及演化的研究。容昱博士在超弥散星系等矮星系的观测和理论研究方面取得了一些国内外广泛认可的研究成果，在Nature，ApJ Letters等国际知名期刊发表一作及通讯（含共同）论文22篇，成果被ESI评为热点论文、被美国大学研究生教科书收录。曾主持多项地面望远镜观测项目，包括VLT/MUSE，VLA，APEX等。现为墨子望远镜项目组成员、NGFS/NGFS-IR国际合作巡天项目组成员。
Dr. Yu Rong is a Research Professor at the Department of Astronomy, University of Science and Technology of China (USTC), supported by the CAS Hundred Talents Program and the Anhui Provincial Overseas Talent Innovation Program. He earned his Ph.D. from the Institute of High Energy Physics, Chinese Academy of Sciences (CAS) in 2016, followed by postdoctoral research at the National Astronomical Observatories of CAS (2016–2017) and the Pontifical Universidad Catolica de Chile under CAS-CONICYT and FONDECYT Fellowships (2017–2022). Dr. Rong's research focuses on the formation and evolution of special galaxies, with groundbreaking contributions to the observational and theoretical understanding of UDGs and dwarf galaxies. His work has been published in top-tier journals such as Nature and The Astrophysical Journal Letters (22 first/corresponding-author papers), with findings recognized as ESI Hot Papers and incorporated into international graduate textbooks. He has led multiple observational campaigns using premier facilities including VLT/MUSE, VLA, and APEX. Currently, he contributes to the WFST Telescope project and the international Next Generation Fornax Survey (NGFS/NGFS-IR) collaboration.
