2012ApJ...756..115Z

Query : 2012ApJ...756..115Z

2012ApJ...756..115Z - Astrophys. J., 756, 115 (2012/September-2)

IDCS J1433.2+3306: an infrared-selected galaxy cluster at z = 1.89.

ZEIMANN G.R., STANFORD S.A., BRODWIN M., GONZALEZ A.H., SNYDER G.F., STERN D., EISENHARDT P., MANCONE C. and DEY A.

Abstract (from CDS):

We report the discovery of an IR-selected galaxy cluster in the IRAC Distant Cluster Survey (IDCS). New data from the Hubble Space Telescope spectroscopically confirm IDCS J1433.2+3306 at z = 1.89 with robust spectroscopic redshifts for seven members, two of which are based on the 4000 Å break. Detected emission lines such as [O II] and Hβ indicate star formation rates of ≳ 20 M☉/yr for three galaxies within a 500 kpc projected radius of the cluster center. The cluster exhibits a red sequence with a scatter and color indicative of a formation redshift zf ≳ 3.5. The stellar age of the early-type galaxy population is approximately consistent with those of clusters at lower redshift (1 <z < 1.5) suggesting that clusters at these redshifts are experiencing ongoing or increasing star formation.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: individual: IDCS J1433.2+3306 - galaxies: distances and redshifts - galaxies: evolution - galaxies: formation - galaxies: photometry - galaxies: star formation

Nomenclature: Tables 1,2,3: [ZSB2012] JHHMMSS.s+DDMMSS N=69.

Simbad objects: 75

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Number of rows : 75
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 Feige 34 HS* 10 39 36.7358839104 +43 06 09.212615280 9.613 10.91 11.14 11.319 11.464 sdOp 731 0
2 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
3 IDCS J1426.5+3508 ClG 14 26.5 +35 08           ~ 64 0
4 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 430 0
5 [ZSB2012] J143304.6+330726 G 14 33 04.56 +33 07 26.5           ~ 1 0
6 [ZSB2012] J143304.8+330654 G 14 33 04.78 +33 06 54.4           ~ 1 0
7 [ZSB2012] J143305.0+330730 G 14 33 04.98 +33 07 30.6           ~ 1 0
8 [ZSB2012] J143305.4+330609 G 14 33 05.37 +33 06 09.6           ~ 1 0
9 [ZSB2012] J143305.5+330657 G 14 33 05.52 +33 06 57.5           ~ 1 0
10 [ZSB2012] J143306.8+330629 G 14 33 06.75 +33 06 29.0           ~ 1 0
11 [ZSB2012] J143307.7+330823 G 14 33 07.69 +33 08 23.1           ~ 1 0
12 [ZSB2012] J143308.4+330741 G 14 33 08.38 +33 07 41.8           ~ 1 0
13 [ZSB2012] J143308.6+330747 G 14 33 08.65 +33 07 47.7           ~ 1 0
14 [ZSB2012] J143308.8+330508 G 14 33 08.76 +33 05 08.3           ~ 1 0
15 [ZSB2012] J143308.8+330735 G 14 33 08.78 +33 07 35.4           ~ 1 0
16 [ZSB2012] J143309.1+330553 G 14 33 09.08 +33 05 53.6           ~ 1 0
17 [ZSB2012] J143309.1+330638 G 14 33 09.14 +33 06 38.0           ~ 1 0
18 [ZSB2012] J143309.2+330641 G 14 33 09.26 +33 06 41.2           ~ 1 0
19 [ZSB2012] J143309.7+330703 G 14 33 09.68 +33 07 03.4           ~ 1 0
20 [ZSB2012] J143309.8+330645 G 14 33 09.77 +33 06 45.1           ~ 1 0
21 [ZSB2012] J143309.8+330711 G 14 33 09.86 +33 07 11.7           ~ 1 0
22 [ZSB2012] J143309.9+330822 G 14 33 09.87 +33 08 23.0           ~ 1 0
23 [ZSB2012] J143309.9+330628 G 14 33 09.90 +33 06 28.1           ~ 1 0
24 [ZSB2012] J143310.0+330733 G 14 33 10.01 +33 07 33.3           ~ 1 0
25 [ZSB2012] J143310.5+330620 G 14 33 10.50 +33 06 20.0           ~ 1 0
26 [ZSB2012] J143310.6+330641 G 14 33 10.57 +33 06 41.5           ~ 1 0
27 [ZSB2012] J143310.7+330456 G 14 33 10.68 +33 04 57.0           ~ 1 0
28 [ZSB2012] J143310.7+330721 G 14 33 10.75 +33 07 21.6           ~ 1 0
29 [ZSB2012] J143311.3+330631 G 14 33 11.34 +33 06 31.6           ~ 1 0
30 [ZSB2012] J143311.5+330639 G 14 33 11.51 +33 06 39.4           ~ 1 0
31 [ZSB2012] J143311.5+330641 G 14 33 11.54 +33 06 41.0           ~ 1 0
32 [ZSB2012] J143311.7+330646 G 14 33 11.72 +33 06 46.4           ~ 1 0
33 [ZSB2012] J143311.9+330536 G 14 33 11.90 +33 05 36.6           ~ 1 0
34 [ZSB2012] J143311.9+330658 G 14 33 11.98 +33 06 58.0           ~ 1 0
35 IDCS J1433.2+3306 ClG 14 33.2 +33 06           ~ 9 0
36 [ZSB2012] J143312.0+330710 G 14 33 12.01 +33 07 10.2           ~ 1 0
37 [ZSB2012] J143312.1+330649 G 14 33 12.06 +33 06 49.4           ~ 1 0
38 [ZSB2012] J143312.6+330642 G 14 33 12.68 +33 06 42.4           ~ 1 0
39 [ZSB2012] J143312.7+330721 G 14 33 12.69 +33 07 21.8           ~ 1 0
40 [ZSB2012] J143312.7+330722 G 14 33 12.73 +33 07 22.0           ~ 1 0
41 [ZSB2012] J143312.8+330735 G 14 33 12.78 +33 07 35.4           ~ 1 0
42 [ZSB2012] J143312.9+330623 G 14 33 12.91 +33 06 23.4           ~ 1 0
43 [ZSB2012] J143312.9+330624 G 14 33 12.94 +33 06 24.1           ~ 1 0
44 [ZSB2012] J143313.0+330504 G 14 33 12.98 +33 05 04.1           ~ 1 0
45 [ZSB2012] J143313.0+330625 G 14 33 13.04 +33 06 25.6           ~ 1 0
46 [ZSB2012] J143313.1+330628 G 14 33 13.07 +33 06 28.1           ~ 1 0
47 [ZSB2012] J143313.1+330634 G 14 33 13.08 +33 06 34.1           ~ 1 0
48 [ZSB2012] J143313.1+330736 G 14 33 13.11 +33 07 36.4           ~ 1 0
49 [ZSB2012] J143313.2+330738 G 14 33 13.20 +33 07 38.2           ~ 1 0
50 [ZSB2012] J143313.3+330739 G 14 33 13.25 +33 07 39.2           ~ 1 0
51 [ZSB2012] J143313.4+330640 G 14 33 13.42 +33 06 40.3           ~ 1 0
52 [ZSB2012] J143313.5+330645 G 14 33 13.52 +33 06 45.9           ~ 1 0
53 [ZSB2012] J143313.5+330646 G 14 33 13.55 +33 06 46.1           ~ 1 0
54 [ZSB2012] J143314.0+330646 G 14 33 14.03 +33 06 46.9           ~ 1 0
55 [ZSB2012] J143314.5+330652 G 14 33 14.45 +33 06 52.2           ~ 1 0
56 [ZSB2012] J143314.6+330704 G 14 33 14.61 +33 07 04.7           ~ 1 0
57 [ZSB2012] J143314.7+330700 G 14 33 14.73 +33 07 00.8           ~ 1 0
58 [ZSB2012] J143315.0+330722 G 14 33 14.96 +33 07 22.7           ~ 1 0
59 [ZSB2012] J143315.5+330834 G 14 33 15.46 +33 08 34.7           ~ 1 0
60 [ZSB2012] J143315.6+330723 G 14 33 15.61 +33 07 23.8           ~ 1 0
61 [ZSB2012] J143315.9+330739 G 14 33 15.93 +33 07 39.8           ~ 1 0
62 [ZSB2012] J143316.0+330717 G 14 33 16.03 +33 07 17.3           ~ 1 0
63 [ZSB2012] J143316.1+330717 G 14 33 16.08 +33 07 17.5           ~ 1 0
64 [ZSB2012] J143316.4+330557 G 14 33 16.36 +33 05 58.0           ~ 1 0
65 [ZSB2012] J143316.5+330716 G 14 33 16.54 +33 07 16.5           ~ 1 0
66 [ZSB2012] J143316.9+330548 G 14 33 16.87 +33 05 48.1           ~ 1 0
67 [ZSB2012] J143317.5+330647 G 14 33 17.47 +33 06 47.7           ~ 1 0
68 [ZSB2012] J143317.7+330816 G 14 33 17.66 +33 08 16.6           ~ 1 0
69 [ZSB2012] J143317.8+330650 G 14 33 17.83 +33 06 50.2           ~ 1 0
70 [ZSB2012] J143317.9+330641 G 14 33 17.90 +33 06 41.1           ~ 1 0
71 [ZSB2012] J143320.5+330710 G 14 33 20.54 +33 07 10.0           ~ 1 0
72 [ZSB2012] J143320.7+330732 G 14 33 20.69 +33 07 32.1           ~ 1 0
73 [ZSB2012] J143322.3+330650 G 14 33 22.30 +33 06 50.2           ~ 1 0
74 [ZSB2012] J143325.7+330651 G 14 33 25.67 +33 06 51.7           ~ 1 0
75 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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