Galaxies in X-ray Selected Clusters and Groups in Dark Energy Survey Data: Stellar Mass Growth of Bright Central Galaxies Since z~1.2

Here, using the science verification data of the Dark Energy Survey for a new sample of 106 X-ray selected clusters and groups, we study the stellar mass growth of bright central galaxies (BCGs) since redshift z ~ 1.2. Compared with the expectation in a semi-analytical model applied to the Millenniu...

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Published in:The Astrophysical journal 2016-01, Vol.816 (2)
Main Authors: Zhang, Y., Miller, C., McKay, T., Rooney, P., Evrard, A. E., Romer, A. K., Perfecto, R., Song, J., Desai, S., Mohr, J., Wilcox, H., Bermeo-Hernandez, A., Jeltema, T., Hollowood, D., Bacon, D., Capozzi, D., Collins, C., Das, R., Gerdes, D., Hennig, C., Hilton, M., Hoyle, B., Kay, S., Liddle, A., Mann, R. G., Mehrtens, N., Nichol, R. C., Papovich, C., Sahlén, M., Soares-Santos, M., Stott, J., Viana, P. T., Abbott, T., Abdalla, F. B., Banerji, M., Bauer, A. H., Benoit-Lévy, A., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Castander, F. J., Diehl, H. T., Doel, P., Cunha, C. E., Eifler, T. F., Neto, A. Fausti, Fernandez, E., Flaugher, B., Fosalba, P., Frieman, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Honscheid, K., James, D., Kuehn, K., Kuropatkin, N., Lahav, O., Maia, M. A. G., Makler, M., Marshall, J. L., Martini, Paul, Miquel, R., Ogando, R., Plazas, A. A., Roodman, A., Rykoff, E. S., Sako, M., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla, I., Smith, R. C., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thaler, J., Tucker, D., Vikram, V., Costa, L. N. da
Format: Article
Language:English
Subjects:
ASTRONOMY AND ASTROPHYSICS
galaxies: clusters: general
galaxies: evolution
galaxies: groups: general
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Summary:Here, using the science verification data of the Dark Energy Survey for a new sample of 106 X-ray selected clusters and groups, we study the stellar mass growth of bright central galaxies (BCGs) since redshift z ~ 1.2. Compared with the expectation in a semi-analytical model applied to the Millennium Simulation, the observed BCGs become under-massive/under-luminous with decreasing redshift.
ISSN:1538-4357
1538-4357