2006ApJ...646L..13S


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.28CET17:48:09

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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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 BD+52 913 WD* 05 05 30.6182785658 +52 49 51.920797126 10.25 11.44 11.69 11.93 12.108 DA.8 968 0
2 HD 340611 WD* 20 34 21.8849808924 +25 03 49.749569866 10.687 11.471 11.546 11.648 11.728 DA2.4 283 0
3 LBQS 2212-1759 QSO 22 15 31.6805723363 -17 44 08.255084112     18.3     ~ 50 0
4 [HLS2010] 35 GiC 22 15 57.23 -17 37 53.2   25.15     23.78 ~ 10 0
5 [HCS2007] 14 GiC 22 15 58.344 -17 37 37.30         24.11 ~ 4 0
6 [HCS2007] 1 GiC 22 15 58.464 -17 37 58.58         23.24 ~ 4 0
7 [BFT2010] 333.9937-17.6362 GiC 22 15 58.5 -17 38 10         23.53 ~ 6 1
8 ClG J2215-1738 ClG 22 15 58.5 -17 38 03           ~ 89 0
9 [HCS2007] 2 GiC 22 15 58.872 -17 37 59.26         23.49 ~ 4 0
10 [BMC2017] XMM2215 864 GiC 22 15 59.047 -17 38 02.62         23.34 ~ 5 0

    Equat.    Gal    SGal    Ecl

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2020.01.28-17:48:09

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