2017A&A...599A..81M


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.14CEST14:04:28

2017A&A...599A..81M - Astronomy and Astrophysics, volume 599A, 81-81 (2017/3-1)

OmegaWINGS: spectroscopy in the outskirts of local clusters of galaxies.

MORETTI A., GULLIEUSZIK M., POGGIANTI B., PACCAGNELLA A., COUCH W.J., VULCANI B., BETTONI D., FRITZ J., CAVA A., FASANO G., D'ONOFRIO M. and OMIZZOLO A.

Abstract (from CDS):

Context. Studies of the properties of low-redshift cluster galaxies suffer, in general, from small spatial coverage of the cluster area. WINGS, the most homogeneous and complete study of galaxies in dense environments to date, obtained spectroscopic redshifts for 48 clusters at a median redshift of 0.05, out to an average distance of approximately 0.5 cluster virial radii. The WINGS photometric survey was recently extended by the VST survey OmegaWINGS to cover the outskirts of a subset of the original cluster sample.
Aims. In this work, we present the spectroscopic follow-up of 33 of the 46 clusters of galaxies observed with VST over 1 square degree. The aim of this spectroscopic survey is to enlarge the number of cluster members and study the galaxy characteristics and the cluster dynamical properties out to large radii, reaching the virial radius and beyond.
Methods. We used the AAOmega spectrograph at AAT to obtain fiber-integrated spectra covering the wavelength region between 3800 and 9000Å with a spectral resolution of 3.5-6Å full width at half maximum (FWHM). Observations were performed using two different configurations and exposure times per cluster. We measured redshifts using both absorption and emission lines and used them to derive the cluster redshifts and velocity dispersions.
Results. We present here the redshift measurements for 17985 galaxies, 7497 of which turned out to be cluster members. The sample magnitude completeness is 80% at V=20. Thanks to the observing strategy, the radial completeness turned out to be relatively constant (90%) within the AAOmega field of view. The success rate in measuring redshifts is 95%, at all radii.
Conclusions. We provide redshifts for the full sample of galaxies in OmegaWINGS clusters together with updated and robust cluster redshift and velocity dispersions. These data, publicly accessible through the CDS and VO archives, will enable evolutionary and environmental studies of cluster properties, providing a local benchmark.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: clusters: general - galaxies: distances and redshifts - galaxies: distances and redshifts

VizieR on-line data: <Available at CDS (J/A+A/599/A81): table4.dat>

Status at CDS:   All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 38

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Number of rows : 38

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 2717 ClG 00 03 12.9 -35 56 13           ~ 128 0
2 ACO 2734 ClG 00 11 21.60 -28 51 16.6           ~ 132 0
3 ACO 85 ClG 00 41 37.8 -09 20 33           ~ 790 0
4 ACO 151 ClG 01 08 52.3 -15 25 01           ~ 182 1
5 ACO 168 ClG 01 15 09.8 +00 14 51           ~ 321 2
6 ACO 193 ClG 01 25 07.3 +08 41 36           ~ 176 0
7 ACO 3128 ClG 03 30 34.6 -52 33 12           ~ 169 3
8 ACO 3158 ClG 03 42 39.6 -53 37 50           ~ 271 0
9 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 372 0
10 ACO 500 ClG 04 38 55.0 -22 05 55           ~ 77 0
11 ACO 3376 ClG 06 01 42.1521 -39 59 06.227           ~ 271 0
12 ACO 3395 ClG 06 27 31.1 -54 23 58           ~ 179 0
13 ACO 754 ClG 09 08 50.1 -09 38 12           ~ 631 1
14 ACO 957 ClG 10 13 38.42 -00 55 32.6           ~ 193 2
15 ACO 970 ClG 10 17 34.3 -10 42 01           ~ 81 0
16 ACO 1069 ClG 10 39 54.3 -08 36 40           ~ 106 1
17 WINGS J104017.22-083308.4 SyG 10 40 17.229 -08 33 08.40           ~ 3 0
18 WINGS J104022.58-083037.8 G 10 40 22.580 -08 30 37.88           ~ 3 0
19 WINGS J104027.03-083416.2 GiC 10 40 27.035 -08 34 16.32           ~ 3 0
20 LT 9 EmG 10 40 35.174 -08 27 46.15           ~ 5 0
21 WINGS J104042.94-083438.6 EmG 10 40 42.901 -08 34 39.15           ~ 3 0
22 [FMV2006] A1631a ClG 12 52 52 -15 24.0           ~ 13 0
23 ACO 3528 ClG 12 54 18.2 -29 01 16           ~ 149 1
24 ACO 3530 ClG 12 55 36 -30 21.2           ~ 90 0
25 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 155 2
26 ACO 3556 ClG 13 24 06.2 -31 39 38           ~ 139 0
27 ACO 3558 ClG 13 27 54.8 -31 29 32           ~ 407 2
28 ACO 3560 ClG 13 32 23.7 -33 08 21           ~ 121 1
29 ACO 3667 ClG 20 12 33.68 -56 50 26.3           ~ 567 1
30 ACO 3716 ClG 20 51 16.7 -52 41 43           ~ 106 1
31 ZW II 108 BiC 21 13 55.918 +02 33 55.39   15.1       ~ 49 1
32 ACO 3809 ClG 21 46 57.5 -43 54 06           ~ 85 0
33 ACO 2382 ClG 21 51 57.2984 -15 36 48.067           ~ 111 0
34 ACO 2399 ClG 21 57 27.64 -07 48 12.9           ~ 163 0
35 ACO 2415 ClG 22 05 25.0 -05 35 23           ~ 108 1
36 ACO 3880 ClG 22 27 49.5 -30 34 40           ~ 85 2
37 ACO 2457 ClG 22 35 40.30 +01 31 33.6           ~ 120 0
38 ACO 4059 ClG 23 56 40.7 -34 40 18           ~ 352 1

    Equat.    Gal    SGal    Ecl

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2020.08.14-14:04:28

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