538 Davey Lab
Title: High Redshift Galaxies in Cosmic Filaments and Protoclusters: the early results from the ODIN survey
Abstract: In the hierarchical theory of structure formation, the most massive structures exhibit a network of filaments connected to their ever-growing cores and surrounded by vast voids. Such filaments may act as efficient channels supporting rapid galaxy growth by allowing pristine gas to flow into the structure cores without shock heating. Frequent mergers at the intersections may lead to extreme starbursts and AGN activity, giving rise to rare phenomena such as Lyman Alpha “blobs” and submillimeter galaxies. Existing observations support these expectations stressing the importance of cosmic filaments in the formation and evolution of cluster galaxies. The One-hundred-square-degree DECam Imaging in Narrowbands (ODIN) survey uses Lyman Alpha Emitters (LAEs) as tracers to map the large-scale matter distribution at redshifts z~2.4, 3.1, and 4.5 and to detect a large sample of protoclusters. In this talk, I will give an overview of the ongoing ODIN survey and highlight some of the early ODIN results, including the detection of protoclusters and filaments and the relationship between blobs, protoclusters, and filaments.
Astro Colloquium and 'coffee & cookies' department gathering (3:45-4:00pm)
Please click the link to join virtually: https://psu.zoom.us/j/92637070419