Skip to main content

Research Repository

Advanced Search

CLASH: The Concentration-Mass Relation of Galaxy Clusters

Merten, J.; Meneghetti, M.; Postman, M.; Umetsu, K.; Zitrin, A.; Medezinski, E.; Nonino, M.; Koekemoer, A.; Melchior, P.; Gruen, D.; Moustakas, L.A.; Bartelmann, M.; Host, O.; Donahue, M.; Coe, D.; Molino, A.; Jouvel, S.; Monna, A.; Seitz, S.; Czakon, N.; Lemze, D.; Sayers, J.; Balestra, I.; Rosati, P.; Benítez, N.; Biviano, A.; Bouwens, R.; Bradley, L.; Broadhurst, T.; Carrasco, M.; Ford, H.; Grillo, C.; Infante, L.; Kelson, D.; Lahav, O.; Massey, R.; Moustakas, J.; Rasia, E.; Rhodes, J.; Vega, J.; Zheng, W.

CLASH: The Concentration-Mass Relation of Galaxy Clusters Thumbnail


Authors

J. Merten

M. Meneghetti

M. Postman

K. Umetsu

A. Zitrin

E. Medezinski

M. Nonino

A. Koekemoer

P. Melchior

D. Gruen

L.A. Moustakas

M. Bartelmann

O. Host

M. Donahue

D. Coe

A. Molino

S. Jouvel

A. Monna

S. Seitz

N. Czakon

D. Lemze

J. Sayers

I. Balestra

P. Rosati

N. Benítez

A. Biviano

R. Bouwens

L. Bradley

T. Broadhurst

M. Carrasco

H. Ford

C. Grillo

L. Infante

D. Kelson

O. Lahav

J. Moustakas

E. Rasia

J. Rhodes

J. Vega

W. Zheng



Abstract

We present a new determination of the concentration–mass (c–M) relation for galaxy clusters based on our comprehensive lensing analysis of 19 X-ray selected galaxy clusters from the Cluster Lensing and Supernova Survey with Hubble (CLASH). Our sample spans a redshift range between 0.19 and 0.89. We combine weak-lensing constraints from the Hubble Space Telescope (HST) and from ground-based wide-field data with strong lensing constraints from HST. The results are reconstructions of the surface-mass density for all CLASH clusters on multi-scale grids. Our derivation of Navarro–Frenk–White parameters yields virial masses between $0.53\times {{10}^{15}}\;{{M}_{\odot }}/h$ and $1.76\times {{10}^{15}}\;{{M}_{\odot }}/h$ and the halo concentrations are distributed around ${{c}_{200c}}\sim 3.7$ with a $1\sigma $ significant negative slope with cluster mass. We find an excellent 4% agreement in the median ratio of our measured concentrations for each cluster and the respective expectation from numerical simulations after accounting for the CLASH selection function based on X-ray morphology. The simulations are analyzed in two dimensions to account for possible biases in the lensing reconstructions due to projection effects. The theoretical c–M relation from our X-ray selected set of simulated clusters and the c–M relation derived directly from the CLASH data agree at the 90% confidence level.

Citation

Merten, J., Meneghetti, M., Postman, M., Umetsu, K., Zitrin, A., Medezinski, E., …Zheng, W. (2015). CLASH: The Concentration-Mass Relation of Galaxy Clusters. Astrophysical Journal, 806(1), Article 4. https://doi.org/10.1088/0004-637x/806/1/4

Journal Article Type Article
Acceptance Date Apr 2, 2015
Online Publication Date Jun 3, 2015
Publication Date Jun 10, 2015
Deposit Date Dec 10, 2014
Publicly Available Date Sep 7, 2015
Journal Astrophysical Journal
Print ISSN 0004-637X
Electronic ISSN 1538-4357
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 806
Issue 1
Article Number 4
DOI https://doi.org/10.1088/0004-637x/806/1/4
Keywords Dark matter, Galaxies: clusters: general, Gravitational lensing: strong, Gravitational lensing: weak.
Public URL https://durham-repository.worktribe.com/output/1416008
Publisher URL http://adsabs.harvard.edu/abs/2014arXiv1404.1376M
Related Public URLs http://adsabs.harvard.edu/abs/2014arXiv1404.1376M

Files

Published Journal Article (6 Mb)
PDF

Copyright Statement
© 2015. The American Astronomical Society. All rights reserved.






You might also like



Downloadable Citations