1995A&A...294..677B

Query : 1995A&A...294..677B

1995A&A...294..677B - Astronomy and Astrophysics, volume 294677-689 (1995/2-3)

Redshift observations of Abell/ACO galaxy clusters in two candidate superclusters.

BATUSKI D.J., MAUROGORDATO S., BALKOWSKI C. and OLOWIN R.P.

Abstract (from CDS):

The results of spectroscopic observations of five R ≥1 clusters of galaxies from the Abell (1958ApJS....3..211A) and Abell et al. (1989ApJS...70....1A) (hereafter ACO) catalogs are presented. The observations were conducted at the ESO 3.6m telescope with the EFOSC spectrograph and PUMA hole-punch aperture plates. Two of the clusters (A2576 and A2628) had been identified as members of one candidate supercluster that appears particularly dense in projection, and the other three clusters (A3802, A3817, and A3834) were in another candidate supercluster, based on redshifts estimated from the magnitudes of their tenth brightest galaxies. Our observations confirm very similar redshifts for A2576 and A2628 (z=0.1875 and z=0.1858, respectively) and for A3802 and A3834 (z=0.1579 and z=0.1518). From the agreement in redshifts and the proximity on the sky, it is suggestive that both pairs are indeed components of superclusters, although redshifts of other nearby candidates must be measured to determine the significance of the structure present. The fifth cluster, A3817, has a mean redshift of z=0.2115, and so appears to be background to any possible A3802/A3834 supercluster. We note that the complex of clusters around A2576 and A2628 is a region of high spatial density, even ignoring the many clusters with unmeasured redshift. The region is an exceptional opportunity for large-scale structure study.

Abstract Copyright: ∼

Journal keyword(s): galaxies: redshifts - clusters

Nomenclature: [BMB95] ACO NNNN NN N=16+15+17+16+15

Simbad objects: 100

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Number of rows : 100
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 LEDA 100206 GiC 21 45 31.85 -46 00 11.2           ~ 2 0
2 LEDA 100207 GiC 21 45 32.1093713815 -46 00 59.779735742           ~ 3 0
3 [BMB95] ACO 3802 3 GiC 21 45 32.47 -46 01 01.6           ~ 1 0
4 LEDA 520144 GiC 21 45 34.85 -46 00 19.1           ~ 2 0
5 LEDA 100209 GiC 21 45 37.50 -46 02 18.4           ~ 2 0
6 LEDA 100210 GiC 21 45 38.35 -45 59 55.5           ~ 2 0
7 LEDA 100211 GiC 21 45 40.20 -46 02 37.2           ~ 2 0
8 LEDA 519999 GiC 21 45 41.12 -46 01 05.2           ~ 3 0
9 [BMB95] ACO 3802 14 GiC 21 45 41.94 -46 00 39.3           ~ 1 0
10 2MASX J21454322-4559244 GiC 21 45 43.1672803608 -45 59 24.512522676           ~ 2 0
11 [BMB95] ACO 3802 18 * 21 45 44.5429664016 -45 59 21.634570968           ~ 1 0
12 LEDA 100212 GiC 21 45 45.32 -46 01 05.2           ~ 2 0
13 2MASX J21454657-4601324 GiC 21 45 46.5242403672 -46 01 32.231882496           ~ 3 0
14 2MASX J21454773-4601144 GiC 21 45 47.6906615928 -46 01 15.054730068           ~ 2 0
15 LEDA 100215 GiC 21 45 48.60 -46 01 46.6           ~ 2 0
16 [BMB95] ACO 3802 29 GiC 21 45 50.53 -45 59 17.6           ~ 1 0
17 LEDA 100216 GiC 21 45 50.97 -46 02 49.2           ~ 2 0
18 ACO 3802 ClG 21 45 53.4 -46 00 49           ~ 3 0
19 [BMB95] ACO 3817 2 * 21 51 03.5235925992 -50 01 28.424072964           ~ 1 0
20 [BMB95] ACO 3817 4 GiC 21 51 04.95 -50 01 33.8           ~ 1 0
21 [BMB95] ACO 3817 6 GiC 21 51 06.44 -50 00 11.3           ~ 1 0
22 [BMB95] ACO 3817 7 GiC 21 51 07.50 -50 00 54.8           ~ 1 0
23 [BMB95] ACO 3817 8 GiC 21 51 08.37 -50 00 36.3           ~ 1 0
24 ACO 3817 ClG 21 51 10 -50 00.9           ~ 4 0
25 [BMB95] ACO 3817 11 GiC 21 51 10.94 -49 58 52.8           ~ 1 0
26 UCAC4 200-190546 * 21 51 12.6105196036 -50 01 18.340525095   14.184 13.598 13.531   ~ 3 0
27 [BMB95] ACO 3817 15 GiC 21 51 13.42 -49 59 49.3           ~ 1 0
28 [BMB95] ACO 3817 17 GiC 21 51 14.63 -50 00 45.6           ~ 1 0
29 [BMB95] ACO 3817 18 GiC 21 51 15.36 -50 00 15.5           ~ 1 0
30 [BMB95] ACO 3817 20 GiC 21 51 16.56 -50 00 51.1           ~ 1 0
31 [BMB95] ACO 3817 22 * 21 51 17.8260497520 -50 00 26.891287092           ~ 1 0
32 [BMB95] ACO 3817 24 * 21 51 19.37 -50 00 20.4           ~ 1 0
33 [BMB95] ACO 3817 27 GiC 21 51 21.24 -49 59 40.1           ~ 1 0
34 LEDA 100217 GiC 21 51 22.35 -50 00 02.3           ~ 2 0
35 [BMB95] ACO 3817 30 * 21 51 22.6673182272 -50 01 00.470413524           ~ 1 0
36 ACO 3818 ClG 21 51 25 -48 02.9           ~ 8 0
37 ACO 3820 ClG 21 52 32 -48 23.9           ~ 3 0
38 ACO 3834 ClG 22 05 45 -47 31.4           ~ 4 0
39 [BMB95] ACO 3834 1 GiC 22 05 53.36 -47 28 35.5           ~ 1 0
40 [BMB95] ACO 3834 4 GiC 22 05 56.32 -47 32 21.1           ~ 1 0
41 [BMB95] ACO 3834 5 GiC 22 05 57.03 -47 31 39.7           ~ 1 0
42 [BMB95] ACO 3834 8 GiC 22 05 59.58 -47 31 50.0           ~ 1 0
43 [BMB95] ACO 3834 9 GiC 22 05 59.69 -47 31 50.0           ~ 1 0
44 [BMB95] ACO 3834 11 GiC 22 06 01.53 -47 31 02.0           ~ 1 0
45 [BMB95] ACO 3834 12 GiC 22 06 01.99 -47 31 23.3           ~ 1 0
46 LEDA 100218 GiC 22 06 02.72 -47 30 36.6           ~ 2 0
47 LEDA 100219 GiC 22 06 04.10 -47 28 52.0           ~ 2 0
48 LEDA 100220 GiC 22 06 04.50 -47 30 42.5           ~ 2 0
49 2MASX J22060578-4728570 GiC 22 06 05.786 -47 28 57.05           ~ 3 0
50 [BMB95] ACO 3834 21 GiC 22 06 07.01 -47 30 38.1           ~ 1 0
51 [BMB95] ACO 3834 24 GiC 22 06 08.69 -47 30 45.2           ~ 1 0
52 [BMB95] ACO 3834 26 GiC 22 06 10.66 -47 30 39.6           ~ 1 0
53 [BMB95] ACO 3834 27 GiC 22 06 11.6600 -47 30 03.600           ~ 1 0
54 ACO 3841 ClG 22 11 18.2 -48 33 37           ~ 15 0
55 ACO 3845 ClG 22 14 31 -47 49.1           ~ 2 0
56 ACO 3951 ClG 22 59 39 -18 37.9           ~ 4 0
57 ACO 2521 ClG 23 02 12.7 -22 01 12           ~ 34 0
58 ACO 2531 ClG 23 06 58.0 -21 40 46           ~ 12 0
59 ACO 2539 ClG 23 08 45.8 -21 28 44           ~ 17 0
60 ACO 2547 ClG 23 10 51.4 -21 07 42           ~ 16 0
61 ACO 2550 ClG 23 11 33.5 -21 44 41           ~ 32 0
62 ACO 2555 ClG 23 12 45.5 -22 12 40           ~ 19 0
63 [BMB95] ACO 2576 2 GiC 23 19 35.74 -22 27 45.6           ~ 1 0
64 LEDA 100186 GiC 23 19 36.30 -22 29 57.7           ~ 2 0
65 LEDA 100187 GiC 23 19 37.17 -22 29 13.9           ~ 2 0
66 LEDA 100188 GiC 23 19 38.52 -22 27 16.8           ~ 2 0
67 LEDA 100189 GiC 23 19 39.44 -22 28 56.2           ~ 2 0
68 LEDA 100190 GiC 23 19 40.10 -22 27 30.9           ~ 2 0
69 [BMB95] ACO 2576 13 GiC 23 19 41.13 -22 28 13.9           ~ 1 0
70 LEDA 100191 GiC 23 19 42.12 -22 27 56.7           ~ 2 0
71 [BMB95] ACO 2576 16 GiC 23 19 42.49 -22 28 30.0           ~ 1 0
72 [BMB95] ACO 2576 18 GiC 23 19 43.65 -22 28 40.7           ~ 1 0
73 [BMB95] ACO 2576 20 GiC 23 19 44.58 -22 27 00.2           ~ 1 0
74 LEDA 100192 GiC 23 19 45.05 -22 28 23.5           ~ 2 0
75 LEDA 100193 GiC 23 19 46.01 -22 27 52.3           ~ 2 0
76 [BMB95] ACO 2576 25 GiC 23 19 46.82 -22 27 15.2           ~ 1 0
77 LEDA 100194 GiC 23 19 47.63 -22 28 24.7           ~ 2 0
78 2MASX J23194907-2226173 GiC 23 19 49.0969569360 -22 26 17.607177276           ~ 2 0
79 ACO 2576 ClG 23 19 56.8 -22 30 34           ~ 10 0
80 ACO 3996 ClG 23 21 20.5 -22 06 33           ~ 10 0
81 ACO 2580 ClG 23 21 23.3 -23 11 16           ~ 49 0
82 ACO 2585 ClG 23 23 07.83 -26 16 44.0           ~ 8 0
83 ACO 2601 ClG 23 26 44.3 -24 25 29           ~ 11 0
84 ACO 2608 ClG 23 30 31.3 -21 39 27           ~ 10 0
85 [BMB95] ACO 2628 2 GiC 23 36 53.80 -24 10 57.5           ~ 1 0
86 LEDA 100196 GiC 23 36 54.45 -24 10 41.2           ~ 2 0
87 LEDA 100197 GiC 23 36 55.66 -24 12 51.6           ~ 2 0
88 [BMB95] ACO 2628 9 GiC 23 36 57.10 -24 12 23.6           ~ 1 0
89 [BMB95] ACO 2628 11 GiC 23 36 58.36 -24 10 01.1           ~ 1 0
90 LEDA 100198 GiC 23 36 59.08 -24 11 05.8           ~ 2 0
91 LEDA 100199 GiC 23 37 00.24 -24 11 41.4           ~ 2 0
92 LEDA 100200 GiC 23 37 00.80 -24 09 17.1           ~ 2 0
93 ACO 2628 ClG 23 37 00.9 -24 09 23           ~ 9 0
94 LEDA 100201 GiC 23 37 01.36 -24 10 22.6           ~ 2 0
95 LEDA 195941 GiC 23 37 01.92 -24 11 17.4           ~ 2 0
96 [BMB95] ACO 2628 18 GiC 23 37 02.55 -24 11 00.0           ~ 1 0
97 LEDA 100202 GiC 23 37 03.26 -24 10 31.8           ~ 2 0
98 LEDA 100203 GiC 23 37 04.27 -24 10 14.9           ~ 2 0
99 LEDA 100204 GiC 23 37 05.80 -24 12 24.0           ~ 2 0
100 LEDA 100205 GiC 23 37 06.48 -24 10 34.5           ~ 2 0

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