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The environmental effect on galaxy evolution: Cl J1449 + 0856 at z = 1.99

Published online by Cambridge University Press:  29 March 2021

Rosemary T. Coogan Open the ORCID record for Rosemary T. Coogan [Opens in a new window] ,
E. Daddi ,
R. Gobat  and
M. T. Sargent
Rosemary T. Coogan
Affiliation:
Max-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstr.1, 85748 Garching, Germany email: rcoogan@mpe.mpg.de
E. Daddi
Affiliation:
Max-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstr.1, 85748 Garching, Germany email: rcoogan@mpe.mpg.de
R. Gobat
Affiliation:
Max-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstr.1, 85748 Garching, Germany email: rcoogan@mpe.mpg.de
M. T. Sargent
Affiliation:
Max-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstr.1, 85748 Garching, Germany email: rcoogan@mpe.mpg.de
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Abstract

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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.

Keywords

galaxies: evolutiongalaxies: clusters: individualgalaxies: ISMgalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S359: Galaxy Evolution and Feedback across Different Environments , March 2019 , pp. 170 - 172
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

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