The environmental effect on galaxy evolution: Cl J1449 + 0856 at z = 1.99
- Resource Type
- Authors
- R. Coogan; Raphael Gobat; M. T. Sargent; E. Daddi
- Source
- Proceedings of the International Astronomical Union. 15:170-172
- Subject
- Physics
Environmental effect
Space and Planetary Science
Star formation
Galaxy formation and evolution
Astronomy and Astrophysics
Astrophysics
Redshift
Galaxy
Galaxy cluster
- Language
- ISSN
- 1743-9221
1743-9213
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.