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.

doi:10.1088/0004-637x/806/1/4

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.

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

Professor Richard Massey r.j.massey@durham.ac.uk
Professor

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.
Publisher URL	http://adsabs.harvard.edu/abs/2014arXiv1404.1376M
Related Public URLs	http://adsabs.harvard.edu/abs/2014arXiv1404.1376M