J/A+A/599/A81 OmegaWINGS local clusters of galaxies redshifts (Moretti+, 2017)
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., Fasaano G., D'Onofrio M.,
Omizzolo A.
<Astron. Astrophys. 599, A81 (2017)>
=2017A&A...599A..81M 2017A&A...599A..81M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: galaxies: clusters: general - galaxies: distances and redshifts
Abstract:
We present the spectroscopic follow-up of the OmegaWINGS photometric
survey, aimed at covering the outskirts of a subset of the original
WINGS cluster sample. We observed 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. 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). We
present here the redshift measurements for 17985 galaxies, 7497 of
which turned out to be cluster members.
Description:
Redshifts, magnitude/radial completeness, and memberships are given
for the 17985 galaxies observed as part of the OmegaWINGS survey of
local clusters of galaxies over 1 square degree. Redshifts have been
measured using both absorption and emission lines features. 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. Cluster members are flagged 1 or 2,
depending on the cluster structure/secondary structure, and 0 if they
are not cluster members.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 86 17985 Redshifts for 17985 galaxies
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See also:
J/A+A/581/A41 : OmegaWINGS BV photometry of galaxy clusters (Gullieuszik+ 2015)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Cluster Cluster name
9- 13 A5 --- --- [WINGS]
14- 32 A19 --- WINGS WINGS designation (JHHMMSS.ss+DDMMSS.s)
34- 44 F11.7 deg RAdeg Right ascension (J2000.0)
46- 56 F11.7 deg DEdeg Declination (J2000.0)
58- 64 F7.5 --- z Redshift
66- 72 F7.5 --- e_z ?=- Error on redshift
74- 78 F5.3 --- Cm ?=- Magnitude completeness
80- 84 F5.3 --- Cr ?=- Radial completeness
86 I1 --- Memb [0/2] Membership (1)
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Note (1): Membership flag as follows:
1 = cluster member (depending on the cluster structure)
2 = cluster member (depending on the secondary structure)
0 = not cluster member
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Acknowledgements:
Alessia Moretti, alessia.moretti(at)oapd.inaf.it
(End) Alessia Moretti [INAF/Padova, Italy], Patricia Vannier [CDS] 07-Feb-2017