1997PASP..109..667H

Query : 1997PASP..109..667H

1997PASP..109..667H - Publ. Astron. Soc. Pac., 109, 667-672 (1997/June-0)

Near infrared imaging of the proposed z=2 cluster behind CL 0939+4713 (Abell 851).

HUTCHINGS J.B. and DAVIDGE T.J.

Abstract (from CDS):

We have obtained deep J and K' images of a 90 arcsec square field containing the z=2.0 QSO that is viewed through the z=0.4 rich cluster A851. Brightnesses of individual galaxies are measured from these data, and archival F702W WFPC2 images from HST. The results are used to construct 2-colour diagrams, colour-magnitude diagrams, and luminosity functions of galaxies in A851 and the faint objects discovered by Dressler et al (1993) near the QSO. The QSO faint companions appear to form a separate population from other faint galaxies in the field. Comparisons with the GISSEL models covering redshifts from 0 to 3 indicate that (1) the A851 galaxies have ages between 3 and 10 Gyr, and (2) if they are at the QSO redshift, the QSO companion galaxies are within 1Gyr of cessation of star-formation.

Abstract Copyright: ∼

Journal keyword(s): Galaxies

CDS comments: Table 1 : Object Q is [DG92] 4-440 in SIMBAD

Simbad objects: 19

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Number of rows : 19
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 5C 7.214 Bla 08 23 41.13194749 +29 28 28.1998396     18.5 19.21   ~ 80 1
2 ACO 851 ClG 09 43 01.2 +46 59 54   18.9       ~ 334 0
3 [BBC2000] 44 GiC 09 43 04.32 +46 59 43.6           ~ 10 0
4 [BBC2000] 38 GiC 09 43 07.15 +46 59 44.3           ~ 8 0
5 [VV2006] J094307.5+465941 QSO 09 43 07.561 +46 59 40.60     21.50     ~ 21 0
6 [DOG93] E * ~ ~           ~ 2 0
7 [DOG93] F * ~ ~           ~ 2 0
8 [DOG93] G * ~ ~           ~ 2 0
9 [DOG93] H * ~ ~           ~ 2 0
10 [DOG93] 1 * ~ ~           ~ 2 0
11 [DOG93] 3 * ~ ~           ~ 2 0
12 [DOG93] 4 * ~ ~           ~ 2 0
13 [DOG93] 5 * ~ ~           ~ 2 0
14 [DOG93] 6 * ~ ~           ~ 2 0
15 [DOG93] 7 * ~ ~           ~ 2 0
16 [DOG93] C * ~ ~           ~ 2 0
17 [DOG93] B * ~ ~           ~ 2 0
18 [DOG93] D * ~ ~           ~ 2 0
19 [DOG93] A * ~ ~           ~ 2 0

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