The environmental effect on galaxy evolution: Cl J1449 + 0856 at z = 1.99. Issue Volume 15:Issue S359(2020) (March 2019)

• Record Type: Journal Article
• Authors: Coogan, Rosemary T.; Daddi, E.; Gobat, R.; Sargent, M. T.
• Editors: Bergmann, Thaisa Storchi; Forman, William; Overzier, Roderik; Riffel, Rogério
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S359(2020)
• Page Start: 170
• Page End: 172
• Publication Date: 2019-03
• Subjects: galaxies: evolution, -- galaxies: clusters: individual, -- galaxies: ISM, -- galaxies: starburst; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320002008
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: This work focuses on understanding the formation of the first massive, passive galaxies in clusters, as a first step to the development of environmental trends seen at low redshift. Cl J1449 + 0856 is an excellent case to study this - a galaxy cluster at redshift z = 1.99 that already shows evidence of a virialised atmosphere. Here we highlight two recent results: the discovery of merger-driven star formation and highly-excited molecular gas in galaxies at the core of Cl J1449, along with the lowest-mass Sunyaev-Zel'dovich detection to date.