2005ApJ...634L.129S

Query : 2005ApJ...634L.129S

2005ApJ...634L.129S - Astrophys. J., 634, L129-L132 (2005/December-1)

An IR-selected galaxy cluster at z = 1.41.

STANFORD S.A., EISENHARDT P.R., BRODWIN M., GONZALEZ A.H., STERN D., JANNUZI B.T., DEY A., BROWN M.J.I., McKENZIE E. and ELSTON R.

Abstract (from CDS):

We report the discovery of a galaxy cluster at z=1.41. ISCS J143809+341419 was found in the Spitzer/IRAC Shallow Survey of the Boötes field in the NOAO Deep Wide-Field Survey carried out using IRAC. The cluster candidate was initially identified as a high-density region of objects with photometric redshifts in the range 1.3<z<1.5. Optical spectroscopy of a limited number of objects in the region shows that five galaxies within an ∼120" diameter region lie at z=1.41±0.01. Most of these member galaxies have broadband colors consistent with the expected spectral energy distribution of a passively evolving elliptical galaxy formed at high redshift. The redshift of ISCS J143809+341419 is the highest currently known for a spectroscopically confirmed cluster of galaxies.

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

Nomenclature: Text: ISCS JHHMMSS+DDMMSS N=1. Table 1: [SEB2005] IRAC JHHMMSS+DDMMSS N=5.

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HZ 44 HS* 13 23 35.2629445608 +36 07 59.544140304 10.186 11.42 11.65 12.00 11.995 sdBN0VIIHe28 439 0
2 [SEB2005] IRAC J143806+341433 G 14 38 06.97 +34 14 33.8           ~ 2 0
3 [SEB2005] IRAC J143807+341441 G 14 38 07.80 +34 14 41.6           ~ 2 0
4 ISCS J143809+341419 ClG 14 38 08.71 +34 14 19.2           ~ 35 0
5 [SEB2005] IRAC J143811+341256 G 14 38 11.24 +34 12 56.2           ~ 2 0
6 [SEB2005] IRAC J143812+341318 G 14 38 12.09 +34 13 18.2           ~ 2 0
7 [SEB2005] IRAC J143813+341452 G 14 38 13.36 +34 14 52.9           ~ 2 0
8 HD 340611 WD* 20 34 21.8847019255 +25 03 49.750446346 10.687 11.471 11.546 11.648 11.728 DA2.4 329 0

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