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Kinematic unrest of low mass galaxy groups

Abstract:

In an effort to better understand the formation of galaxy groups, we examine the kinematics of a large sample of spectroscopically confirmed X-ray galaxy groups in the Cosmic Evolution Survey (COSMOS) with a high sampling of galaxy group members up to $z=1$. We compare our results with predictions from the cosmological hydrodynamical simulation of {\sc Horizon-AGN}. Using a phase-space analysis of dynamics of groups with halo masses of $M_{\mathrm{200c}}\sim 10^{12.6}-10^{14.50}M_\odot$, we s...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1051/0004-6361/201936745

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
Publisher:
EDP Sciences
Journal:
Astronomy and Astrophysics More from this journal
Volume:
635
Issue:
March 2020
Article number:
A36
Publication date:
2020-03-03
Acceptance date:
2020-01-16
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
Language:
English
Keywords:
Pubs id:
1084143
Local pid:
pubs:1084143
Deposit date:
2020-02-14

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