Giants in the Cosmic Web: Probing the Emergence of Massive Galaxies with Current and New-Gen Facilities
Tsung-Dao Lee Institute/S4F-SW - Open Area
Tsung-Dao Lee Institute
Host: Xiaohu Yang/Xianzhong Zheng
Join Tencent Meeting：https://meeting.tencent.com/dm/JjYOlhlG65YX
Meeting ID: 442395805 (no password)
Abstract:
The majority of galaxies in the Universe form and evolve within the large-scale structure known as the Cosmic Web. In early epochs, the Cosmic Web hosts a plethora of gas flows and massive black holes, particularly around the web nodes. How did special environments as such have shaped the very early phase of galaxy formation? To address this question, I would like to present our recent study of a Cosmic Web node at z~3. Deep JWST, VLT, and ALMA observations revealed a surprisingly heterogeneous population of massive galaxies, including a star-forming disk with a large size never seen in the normal environment and a compact quiescent galaxy located at the center of a cool CGM reservoir. I will demonstrate that gas accretion and radio-mode AGN feedback likely played critical roles in shaping these objects in the Cosmic Web node.
I will finish by discussing the prospects of utilizing next-generation facilities to advance our understanding of early galaxy formation. In particular, I will highlight the potential of coordinating large-scale space surveys with ground follow-up observations to probe galaxy-environment connections in the data-driven era of extragalactic astronomy.
Short Bio:
Weichen Wang is currently a postdoc researcher at the University of Milan-Bicocca, Italy. He obtained his PhD in 2022 from the Johns Hopkins University and bachelor degree in 2016 from Tsinghua University. His research focuses on early-phase galaxy formation in extreme environments, the circumgalactic medium, and large-scale structure, using a broad range of facilities including the JWST, VLT/MUSE, ALMA, and HST.
