We apply a density evaluation technique based on photometric redshifts, developed by our group, to estimate galaxy space density on the deep (Z 850 - 26) multi-wavelength GOODS-MUSIC catalogue. We find several groups and clusters in the redshift range 0.4-2.5. We present here an outline of the X-ray properties of our cluster sample as computed from the Chandra 2Ms data. A group at z=0.96 could be associated to an extended X-ray source, while two clusters with masses of few times 1014Mȯ have upper limits on their X-ray emission significantly lower than expected from their optical properties. © 2009 American Institute of Physics.
Large Scale Structures in the GOODS-SOUTH Field up to z~2.5 / Trevese, Dario; Castellano, M; Salimbeni, S; Pentericci, L; Fiore, F.. - 1126:(2009), pp. 125-127. (Intervento presentato al convegno 2nd International Simbol-X Symposium tenutosi a Paris; France nel 2-5 December 2008) [10.1063/1.3149393].
Large Scale Structures in the GOODS-SOUTH Field up to z~2.5
TREVESE, Dario;
2009
Abstract
We apply a density evaluation technique based on photometric redshifts, developed by our group, to estimate galaxy space density on the deep (Z 850 - 26) multi-wavelength GOODS-MUSIC catalogue. We find several groups and clusters in the redshift range 0.4-2.5. We present here an outline of the X-ray properties of our cluster sample as computed from the Chandra 2Ms data. A group at z=0.96 could be associated to an extended X-ray source, while two clusters with masses of few times 1014Mȯ have upper limits on their X-ray emission significantly lower than expected from their optical properties. © 2009 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
