Comparing Dark Energy Survey and HST–CLASH observations of the galaxy cluster RXC J2248.7−4431: implications for stellar mass versus dark matter
- Palmese, A.
- Lahav, O.
- Banerji, M.
- Gruen, D.
- Jouvel, S.
- Melchior, P.
- Aleksić, J.
- Annis, J.
- Diehl, H. T.
- Hartley, W. G.
- Jeltema, T.
- Romer, A. K.
- Rozo, E.
- Rykoff, E. S.
- Seitz, S.
- Suchyta, E.
- Zhang, Y.
- Abbott, T. M. C.
- Abdalla, F. B.
- Allam, S.
- Benoit-Lévy, A.
- Bertin, E.
- Brooks, D.
- Buckley-Geer, E.
- Burke, D. L.
- Capozzi, D.
- Carnero Rosell, A.
- Carrasco Kind, M.
- Carretero, J.
- Crocce, M.
- Cunha, C. E.
- D'Andrea, C. B.
- da Costa, L. N.
- Desai, S.
- Dietrich, J. P.
- Doel, P.
- Estrada, J.
- Evrard, A. E.
- Flaugher, B.
- Frieman, J.
- Gerdes, D. W.
- Goldstein, D. A.
- Gruendl, R. A.
- Gutierrez, G.
- Honscheid, K.
- James, D. J.
- Kuehn, K.
- Kuropatkin, N.
- Li, T. S.
- Lima, M.
- Maia, M. A. G.
- Marshall, J. L.
- Miller, C. J.
- Miquel, R.
- Nord, B.
- Ogando, R.
- Plazas, A. A.
- Roodman, A.
- Sanchez, E.
- Scarpine, V.
- Sevilla-Noarbe, I.
- Smith, R. C.
- Soares-Santos, M.
- Sobreira, F.
- Swanson, M. E. C.
- Tarle, G.
- Thomas, D.
- Tucker, D.
- Vikram, V.
DOIAbstract
We derive the stellar mass fraction in the galaxy cluster RXC J2248.7-4431 observed with the Dark Energy Survey (DES) during the Science Verification period. We compare the stellar mass results from DES (five filters) with those from the Hubble Space Telescope Cluster Lensing And Supernova Survey (CLASH; 17 filters). When the cluster spectroscopic redshift is assumed, we show that stellar masses from DES can be estimated within 25 per cent of CLASH values. We compute the stellar mass contribution coming from red and blue galaxies, and study the relation between stellar mass and the underlying dark matter using weak lensing studies with DES and CLASH. An analysis of the radial profiles of the DES total and stellar mass yields a stellar-to-to...
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