SIMBAD references

2006ApJ...646L..13S - Astrophys. J., 646, L13-L16 (2006/July-3)

The XMM cluster survey: a massive galaxy cluster at z = 1.45.

STANFORD S.A., ROMER A.K., SABIRLI K., DAVIDSON M., HILTON M., VIANA P.T.P., COLLINS C.A., KAY S.T., LIDDLE A.R., MANN R.G., MILLER C.J., NICHOL R.C., WEST M.J., CONSELICE C.J., SPINRAD H., STERN D. and BUNDY K.

Abstract (from CDS):

We report the discovery of XMMXCS J2215.9-1738, a massive galaxy cluster at z=1.45, which was found in the XMM Cluster Survey. The cluster candidate was initially identified as an extended X-ray source in archival XMM data. Optical spectroscopy shows that six galaxies within a ∼60" diameter region lie at z=1.45±0.01. Model fits to the X-ray spectra of the extended emission yield kT=7.4+2.7–1.8keV (90% confidence); if there is an undetected central X-ray point source, then kT=6.5+2.6–1.8keV. The bolometric X-ray luminosity is LX=4.4+0.8–0.6x1044 ergs.s–1 over a 2 Mpc radial region. The measured TX, which is the highest for any known cluster at z>1, suggests that this cluster is relatively massive for such a high redshift. The redshift of XMMXCS J2215.9-1738 is the highest currently known for a spectroscopically confirmed cluster of galaxies.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Evolution - Galaxies: Formation

Nomenclature: XMMXCS J2215.9-1738 N=1. Table 1: [SRS2006] NNNNN N=6 among (Nos 14289-14651).

Simbad objects: 10

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2019.12.15-03:41:22

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