1211.2797 (A. Zitrin et al.)

CLASH: The enhanced lensing efficiency of the highly elongated merging cluster MACS J0416.1-2403    [PDF]

A. Zitrin, M. Meneghetti, K. Umetsu, T. Broadhurst, M. Bartelmann, R. Bouwens, L. Bradley, M. Carrasco, D. Coe, H. Ford, D. Kelson, A. M. Koekemoer, E. Medezinski, J. Moustakas, L. A. Moustakas, M. Nonino, M. Postman, P. Rosati, G. Seidel, I. Sendra, X. Shu, J. Vega, W. Zheng

We perform a strong-lensing analysis of the merging galaxy cluster MACS J0416.1-2403 (M0416; z=0.42) in recent CLASH/HST observations. We identify 70 new multiple images and candidates of 23 background sources in the range 0.76 x 10^{14} h^{-1}M_{\odot}) exhibit as elongated critical curves as M0416.

View original: http://arxiv.org/abs/1211.2797