| Autor: |
van Uitert, Edo, Gilbank, David G., Hoekstra, Henk, Semboloni, Elisabetta, Gladders, Michael D., Yee, H. K. C. |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
A&A 586, A43 (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1051/0004-6361/201526719 |
| Popis: |
We study a sample of ~10^4 galaxy clusters in the redshift range 0.2 5x10^13 h_70^-1 M_sun, discovered in the second Red-sequence Cluster Survey (RCS2). The depth and excellent image quality of the RCS2 enable us to detect the cluster-mass cross-correlation up to z~0.7. To obtain cluster masses, concentrations and halo biases, we fit a cluster halo model simultaneously to the lensing signal and to the projected density profile of red-sequence cluster members, as the latter provides tight constraints on the cluster miscentring distribution. We parametrise the mass-richness relation as M_200 = A x (N_200/20)^alpha, and find A = (15.0 +- 0.8) x 10^13 h_70^-1 M_sun and alpha = 0.73 +- 0.07 at low redshift (0.2Comment: 22 pages, 20 figures. Replaced with accepted version |
| Databáze: |
arXiv |
| Externí odkaz: |
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