Coming Up...  New

Type:  Seminar
Date:  2022-07-22 11:00
Title:  The Origin of the Cosmic Submillimeter Background
Venue:  Online
Speaker:  Chian-Chou Chen
Institution:  Institute of Astronomy and Astrophysics, Academia Sinica

Extragalactic background light (EBL), the integrated light flux densities outside the Milky Way, provides one of the most fundamental electromagnetic constraints to the observable Universe. While the cosmic microwave background (CMB) dominates the EBL energy budget, it is the cosmic optical (COB) and comic infrared background (CIB) that inform us most about galaxy formation and evolution. In this talk, I plan to first briefly review the current understandings of EBL, and then dig further into the submillimeter regime where we have seen recent progress. In the second part of the talk I will discuss the submillimeter galaxy (SMG), the dominant contributor to the submillimeter background, and presents our current understanding with regards to their role under the framework of galaxy formation and evolution. If time permits, I will discuss challenges that the state-of-the-art theoretical models are currently facing in terms of reproducing the observed properties of SMGs, and how that may impact galaxy formation theory in general.

Activities  New

2022-07-22 11:00Chian-Chou ChenThe Origin of the Cosmic Submillimeter BackgroundOnline