CDS

2002A&A...382...60D

Query : 2002A&A...382...60D

2002A&A...382...60D - Astronomy and Astrophysics, volume 382, 60-83 (2002/1-4)

Hidden star-formation in the cluster of galaxies Abell 1689.

DUC P.-A., POGGIANTI B.M., FADDA D., ELBAZ D., FLORES H., CHANIAL P., FRANCESCHINI A., MOORWOOD A. and CESARSKY C.

Abstract (from CDS):

At a redshift of 0.18, Abell 1689 is so far the most distant cluster of galaxies for which substantial mid-infrared (MIR) data have been published. Its mapping with the ISOCAM camera onboard the ISO satellite allowed the detection of 30 cluster members at 6.75µm (LW2 filter) and 16 cluster members at 15µm (LW3 filter) within a clustercentric radius of 0.5Mpc (Fadda et al., 2000A&A...361..827F (Paper I)). We present here the follow-up optical photometric and spectroscopic observations which were used to study the individual properties of the galaxy members of A1689. We confirm the high fraction of blue galaxies initially reported in this rich cluster by Butcher & Oemler (1984ApJ...285..426B), that was challenged by some subsequent studies. We discuss the spectral and morphological properties of all cluster members in our spectroscopic sample, and of the MIR-detected galaxies in particular. Sources with a low [15µm]/[6.75µm] flux ratio typically consist of luminous passive early-type galaxies while those with a high MIR color index are mainly luminous, blue, emission-line, morphologically disturbed spirals, i.e. the star-forming galaxies usually associated with the ``Butcher-Oemler'' effect. On the other hand, at least 30% of the 15µm sources have optical counterparts showing no evidence for current star-formation activity, while their 15µm emission is most likely due to obscured star formation. We argue that the LW3 luminosity measured in the cluster members is a reliable tracer of the total infrared luminosity which in A1689 galaxies peaks at LIR=6.2x1010L☉. We derive from LIR a star-formation rate free of dust extinction, SFR(IR), which we compare with that determined in the optical from the flux of the OII emission line, SFR(opt). The highest total star formation rates (11M☉/yr) and dust extinction are measured in those galaxies exhibiting in their optical spectrum a signature of a dusty starburst. In contrast, none of the galaxies with post-starburst optical spectra has been detected by ISOCAM down to a 15µm flux limit corresponding to 1.4M☉/yr. We find a median SFR(IR) of the LW3-detected galaxies of 2M☉/yr that is ten times higher than the median SFR(opt) of the OII - detected galaxies. The ratio SFR(IR)/SFR(opt) is in fact very high, ranging between 10 and 100 for LW3-detected galaxies with OII emission. We conclude that a major part, at least 90%, of the star formation activity taking place in Abell 1689 is hidden. Whether the high extinction measured in the star-forming cluster members results from the cluster environment itself or reflects a comparable extinction in the coeval field is still unclear.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: individual: Abell 1689 - galaxies: evolution - infrared: galaxies

VizieR on-line data: <Available at CDS (J/A+A/382/60): table1.dat table2.dat table3.dat table4.dat>

Nomenclature: Table 1: [DPF2002] NN (Nos 1-74). Table 4: [DPF2002] JHHMMSS.ss+DDMMSS.s N=18.

Simbad objects: 125

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Number of rows : 125
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 ACO 851 ClG 09 42 56.6 +46 59 22   18.9       ~ 323 0
2 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6449 0
3 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1901 1
4 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4650 2
5 2dFGRS TGN259Z070 GiC 13 11 18.44184 -01 18 39.7260   18.92 17.69 17.113   ~ 4 0
6 LEDA 88741 rG 13 11 20.8098901008 -01 20 02.310451368   20.47 18.83     ~ 9 0
7 TCG ACO 1689 232 GiC 13 11 21.5987768496 -01 19 43.608179100   20.76 19.13     ~ 7 0
8 [DPF2002] J131123.95-012146.3 G 13 11 23.95 -01 21 46.3     21.55     ~ 1 0
9 [MBC96] ACO 1689 594 GiC 13 11 24.0600 -01 19 07.032   21.34 20.01 19.27 18.69 ~ 8 0
10 [DPF2002] 2 GiC 13 11 24.2840 -01 21 14.480   21.41 20.82     ~ 2 0
11 [MBC96] ACO 1689 683 GiC 13 11 24.311 -01 18 37.51   21.59 20.29 19.60 19.04 ~ 4 0
12 [FHB2012] ELS 11186 EmG 13 11 24.4594644288 -01 21 10.968434208   20.72 19.11     ~ 12 0
13 LEDA 88743 rG 13 11 24.4748589864 -01 22 15.254105088   20.48 18.81     ~ 10 0
14 [MBC96] ACO 1689 442 GiC 13 11 24.6520 -01 20 03.380     22.65   21.33 ~ 3 0
15 [AMA2011] a1689 050 GiC 13 11 25.1308531992 -01 19 31.007727408   20.98 19.66 18.98 18.40 ~ 8 0
16 LEDA 88746 rG 13 11 25.3750804032 -01 20 36.943458468   19.48 18.06 17.32 16.72 ~ 16 0
17 [DPF2002] 8 GiC 13 11 25.7157598776 -01 17 24.182159604   20.91 19.31     ~ 3 0
18 [GH91] 10 GiC 13 11 25.9740 -01 19 35.680   21.81 20.48     ~ 3 0
19 [GH91] 30 GiC 13 11 26.550 -01 22 00.98   20.56 19.32 18.67 18.15 ~ 5 0
20 TCG ACO 1689 233 GiC 13 11 26.9188654872 -01 19 36.802312284   20.34 19.02     ~ 11 0
21 [DPF2002] 11 GiC 13 11 27.03 -01 16 10.5   19.79 18.76 18.19 17.67 ~ 3 0
22 [MBC96] ACO 1689 646 GiC 13 11 27.0840 -01 18 48.880   21.86 20.72 20.01 19.84 ~ 7 0
23 [AMA2011] a1689 061 GiC 13 11 27.0940 -01 21 43.080   22.21 21.08 20.50 20.11 ~ 5 0
24 [BCS2002] 4 GiC 13 11 27.1090 -01 20 58.420   20.81 19.68     ~ 4 0
25 LEDA 88751 GiC 13 11 27.1352368416 -01 22 08.940535140   20.45 19.04 18.31 17.70 ~ 9 0
26 TCG ACO 1689 217 GiC 13 11 27.2240 -01 20 10.180   19.41 18.24     ~ 7 0
27 [BCS2002] 3454 GiC 13 11 27.4251 -01 22 47.501   20.48 19.12 18.39 17.76 ~ 8 0
28 [BCS2002] 6 GiC 13 11 27.6810 -01 21 07.190   20.59 19.50     ~ 5 0
29 [DPF2002] J131127.81-011853.3 G 13 11 27.8440 -01 18 52.980           ~ 2 0
30 2dFGRS TGN259Z065 rG 13 11 27.8458620792 -01 20 07.682470836   19.63 18.21 17.50 17.48 ~ 14 0
31 [CBB2010b] A1689 123 GiC 13 11 27.8651157504 -01 21 12.864862044   21.55 19.95     ~ 6 0
32 TCG ACO 1689 240 GiC 13 11 27.9202760088 -01 21 36.631314828   21.13 19.66     ~ 8 0
33 LEDA 88747 rG 13 11 27.9467158368 -01 23 08.483858664   20.10 18.69 17.95 17.37 ~ 9 0
34 [LRJ2007] Galaxy 5 GiC 13 11 28.0230 -01 18 43.890   20.77 19.46 18.75 18.23 ~ 9 0
35 [MBC96] ACO 1689 753 AGN 13 11 28.15 -01 18 12.7   21.62 20.41 19.69 19.16 ~ 4 0
36 LEDA 88754 rG 13 11 28.2287319000 -01 20 43.389522060   18.84 17.49 16.78 16.22 ~ 13 0
37 [DPF2002] 22 GiC 13 11 28.3240 -01 18 45.180   20.76 19.49 18.86 18.33 ~ 8 0
38 [FCB2007] J131128.325-011827.50 G 13 11 28.3250 -01 18 27.500   22.94 21.67   20.59 ~ 3 0
39 LEDA 88755 GiC 13 11 28.3737229056 -01 19 58.441853064   19.23 18.11 17.48 16.95 ~ 12 0
40 [BCS2002] 3331 GiC 13 11 28.3789266264 -01 18 32.004832248   21.90 21.34     ~ 4 0
41 [DPF2002] J131128.40-012025.7 GiC 13 11 28.48 -01 20 24.9   21.13 19.19     ~ 7 0
42 [BCS2002] 3315 GiC 13 11 28.4828951040 -01 22 41.544377760   20.48 18.82     ~ 4 0
43 [AMA2011] a1689 008 GiC 13 11 28.5940 -01 20 26.780   20.81 19.42 19.16 18.88 ~ 7 0
44 [MBC96] ACO 1689 609 GiC 13 11 28.7240 -01 19 02.980   21.41 20.09 19.41 18.82 ~ 11 0
45 [GH91] 118 GiC 13 11 28.7640 -01 21 43.580   21.05 20.97     ~ 4 0
46 Slee ACO 1689 12 GiC 13 11 29.0260343424 -01 21 16.699438692   19.31 17.93 17.19 16.61 ~ 15 0
47 LEDA 88760 GiC 13 11 29.1019203144 -01 21 37.337461992   21.21 19.57     ~ 6 0
48 LEDA 88759 GiC 13 11 29.1351475680 -01 21 55.174002516   20.52 19.12 18.40 17.81 ~ 8 0
49 [BCS2002] 12 GiC 13 11 29.310 -01 17 49.78   20.34 19.24     ~ 3 0
50 [MBC96] ACO 1689 580 GiC 13 11 29.3246137344 -01 19 16.598932212   20.70 19.41 18.73 18.17 ~ 12 0
51 [DPF2002] J131129.36-012043.9 GiC 13 11 29.38 -01 20 43.9   20.98 19.43     ~ 3 0
52 TCG ACO 1689 249 GiC 13 11 29.4141355656 -01 18 34.650450756   20.44 19.09 18.39 17.83 ~ 11 0
53 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1099 0
54 SDSS J131129.50-012027.9 BiC 13 11 29.510 -01 20 28.02   17.87 16.48 15.75 15.16 ~ 28 1
55 [BCS2002] 15 GiC 13 11 29.7290 -01 17 46.644   20.99 19.72     ~ 5 0
56 [DPF2002] 31 AGN 13 11 29.74 -01 17 43.2   22.20 21.02 20.37 19.77 ~ 3 0
57 [DPF2002] 30 GiC 13 11 29.7732444672 -01 17 21.485982372   20.49 19.10 18.38 17.80 ~ 4 0
58 [BCS2002] 3128 GiC 13 11 29.8690 -01 20 15.230   21.82 20.11     ~ 7 0
59 [BCS2002] 16 GiC 13 11 29.9740 -01 20 40.480   19.83 18.72     ~ 9 0
60 LEDA 88765 GiC 13 11 30.0145677672 -01 22 07.307727780   19.85 18.51 17.79 17.23 ~ 9 0
61 [MBC96] ACO 1689 412 GiC 13 11 30.0313405824 -01 20 17.299303332   21.62 19.96     ~ 4 0
62 TCG ACO 1689 3 GiC 13 11 30.0440 -01 20 42.980   19.53 18.10     ~ 7 0
63 DES J131130.05-011624.9 GiC 13 11 30.0510 -01 16 24.956   20.92 19.62 18.86 18.21 ~ 5 0
64 2MASS J13113005-0120286 BiC 13 11 30.0555394024 -01 20 28.487002882   20.42 18.67     ~ 7 0
65 [DPF2002] 38 GiC 13 11 30.11 -01 22 30.8   20.41 19.12 18.43 17.88 ~ 4 0
66 [BCS2002] 19 GiC 13 11 30.2447386008 -01 20 51.771609312   19.77 18.38 17.66 17.08 ~ 9 0
67 MCG+00-34-016 rG 13 11 30.3028054272 -01 20 29.135582412   19.53 17.87     ~ 13 0
68 [DPF2002] J131130.34-012046.0 GiC 13 11 30.34 -01 20 46.0   20.92 19.28     ~ 5 0
69 [DPF2002] J131130.50-012046.0 GiC 13 11 30.50 -01 20 46.0           ~ 1 0
70 [BCS2002] 22 GiC 13 11 30.5996742792 -01 20 43.664514252   20.40 18.78     ~ 9 0
71 [BCS2002] 23 GiC 13 11 30.7510 -01 21 38.780   21.89 21.46   20.32 ~ 5 0
72 [MBC96] ACO 1689 369 GiC 13 11 30.9340 -01 20 30.680           ~ 5 0
73 TCG ACO 1689 226 GiC 13 11 31.1034006744 -01 20 52.508965632   19.44 18.04 17.29 16.70 ~ 8 0
74 2dFGRS TGN260Z055 rG 13 11 31.1149083576 -01 21 27.747642456   20.28 18.50 17.352   ~ 10 0
75 [CBB2010b] A1689 148 GiC 13 11 31.1240 -01 21 25.380   20.28 18.50 17.352   ~ 10 0
76 NVSS J131131-011934 rG 13 11 31.4277701040 -01 19 32.734711776   18.80 17.34 16.61 15.97 ~ 20 2
77 [BCS2002] 2926 GiC 13 11 31.5100 -01 19 24.870   21.27 19.74     ~ 7 0
78 [DPF2002] 45 GiC 13 11 31.6107782208 -01 17 27.649834368   20.55 19.16 18.44 17.85 ~ 4 0
79 [FHB2012] ELS 3203 EmG 13 11 32.0890 -01 19 36.600           ~ 9 0
80 LEDA 88774 rG 13 11 32.1157983528 -01 21 38.031386184   19.91 18.61 17.95 17.35 ~ 16 0
81 DES J131132.13-011946.7 rG 13 11 32.1405758904 -01 19 46.756515036   19.75 18.31 17.56 16.95 ~ 13 0
82 DES J131132.21-012210.6 rG 13 11 32.2191089256 -01 22 10.690727628   20.19 18.80 18.11 17.52 ~ 10 0
83 [CBB2010b] A1689 154 EmG 13 11 32.4640 -01 22 18.280   21.13 20.32 19.88 19.53 ~ 5 0
84 LEDA 88771 rG 13 11 32.6105861664 -01 23 51.297435492   19.93 18.55 17.83 17.23 ~ 10 0
85 [BCS2002] 2780 GiC 13 11 32.645 -01 18 37.28     23.96     ~ 2 0
86 LEDA 88770 GiC 13 11 32.67 -01 18 41.7   19.09 18.05 17.53 17.11 ~ 11 0
87 SDSS J131132.68-011958.5 BiC 13 11 32.6853907008 -01 19 58.533688560   18.51 17.05 16.28 15.68 ~ 17 0
88 LEDA 88773 rG 13 11 32.7316551792 -01 19 31.648510956   19.55 17.66 16.945   ~ 12 0
89 [GH91] 178 GiC 13 11 33.0340 -01 21 24.780   23.16 22.06     ~ 3 0
90 LEDA 88776 rG 13 11 33.1569738576 -01 17 01.781440260   19.55 18.19 17.48 16.90 ~ 10 0
91 [GH91] 156 GiC 13 11 33.7240 -01 19 39.180   22.85 21.16     ~ 3 0
92 TCG ACO 1689 229 GiC 13 11 33.8074882920 -01 18 43.904485620   20.23 18.89 18.20 17.63 ~ 8 0
93 [MMK2007] J131134.17-012235.4 AGN 13 11 34.07 -01 22 35.8   24.06 23.09 22.14 21.38 ~ 4 0
94 [AMA2011] a1689 052 GiC 13 11 34.0747393032 -01 21 01.888461576   19.44 18.40 17.88 17.45 ~ 9 0
95 2dFGRS TGN396Z037 LSB 13 11 34.46 -01 18 11.3   19.31 18.21 17.65 17.15 ~ 10 0
96 LEDA 88780 rG 13 11 34.7178078864 -01 17 42.898419024   19.81 18.44 17.70 17.11 ~ 10 0
97 [BCS2002] 2509 GiC 13 11 34.7810484120 -01 20 59.147166552   20.52 19.15 18.42 17.82 ~ 12 0
98 [BCS2002] 2468 GiC 13 11 35.114 -01 23 17.64   21.42 19.90     ~ 2 0
99 [DPF2002] J131135.21-011854.9 GiC 13 11 35.250 -01 18 54.27   22.61 21.08     ~ 4 0
100 [FHB2012] ELS 1077 EmG 13 11 35.2580 -01 20 30.170     22.59   20.64 ~ 5 0
101 LEDA 88782 rG 13 11 35.3677590240 -01 21 33.149813832   20.02 18.59 17.86 17.26 ~ 16 0
102 TCG ACO 1689 274 GiC 13 11 35.4010773624 -01 20 42.662473008   21.21 19.54     ~ 6 0
103 [BCS2002] 2410 GiC 13 11 35.5355980824 -01 17 42.205802748   20.55 19.20 18.49 17.93 ~ 7 0
104 APMUKS (BJ) B130901.41-010417.1 AGN 13 11 35.6172052632 -01 20 12.178072104   19.75 18.82 18.34 18.84 ~ 15 0
105 [DPF2002] J131135.95-012229.0 GiC 13 11 35.98 -01 22 28.2   21.71 20.59     ~ 4 0
106 LEDA 88785 rG 13 11 36.0174055224 -01 23 40.443836208   19.88 18.46 17.73 17.10 ~ 10 0
107 [DPF2002] J131136.40-012206.1 G 13 11 36.421 -01 22 05.31     22.23     ~ 2 0
108 [GH91] 197 GiC 13 11 36.52 -01 18 47.3   21.64 20.42 19.82 19.34 ~ 4 0
109 LEDA 88784 GiC 13 11 36.6 -01 22 56   20.15 19.14 18.48 17.93 ~ 9 0
110 [BCS2002] 2220 GiC 13 11 37.0450 -01 22 31.584   21.41 20.23 19.55 18.98 ~ 7 0
111 [DPF2002] 65 GiC 13 11 37.1872040568 -01 17 07.005342984   20.51 19.11 18.41 17.81 ~ 5 0
112 LEDA 88788 GiC 13 11 37.40 -01 18 36.7   19.30 18.56     ~ 5 0
113 LEDA 2802293 rG 13 11 37.8598769088 -01 19 20.524735992   19.55 18.23 17.53 16.98 ~ 13 0
114 [BCS2002] 2090 GiC 13 11 37.9240131336 -01 22 37.177396320   20.90 19.58 18.92 18.35 ~ 8 0
115 2dFGRS TGN260Z045 rG 13 11 37.9802700504 -01 18 08.250394824   19.42 18.01 17.28 16.69 ~ 10 0
116 [BCS2002] 43 GiC 13 11 38.28 -01 21 05.6   19.86 18.75 18.18 17.68 ~ 6 0
117 [DPF2002] J131138.76-011908.2 G 13 11 38.76 -01 19 08.2   22.05 20.61     ~ 1 0
118 DES J131139.35-011649.1 rG 13 11 39.3610587720 -01 16 49.174211172   19.75 18.39 17.68 17.09 ~ 6 0
119 LEDA 2802297 GiC 13 11 39.47 -01 19 06.9   20.06 18.92 18.36 17.92 ~ 8 0
120 TCG ACO 1689 270 GiC 13 11 39.6211970040 -01 17 49.388753292   20.56 19.18 18.44 17.84 ~ 6 0
121 SDSS J131140.14-011951.5 Sy1 13 11 40.142 -01 19 51.52   19.65 19.04 18.65 18.20 ~ 9 0
122 LEDA 2802299 GiC 13 11 40.3316783112 -01 18 00.392283864   20.12 18.73 18.03 17.44 ~ 8 0
123 [DPF2002] J131141.83-011948.1 G 13 11 41.85 -01 19 47.6   21.19 19.94     ~ 3 0
124 FIRST J131143.4-011920 rG 13 11 43.4278735536 -01 19 19.543103400   19.34 17.91 17.19 16.59 ~ 16 0
125 ACO S 1077 ClG 22 58 52.34 -34 46 54.6           ~ 184 0

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2023.06.03-15:52:27

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