J/A+A/521/A78 Velocities in the A2345 cluster (Boschin+, 2010)
The complex structure of Abell 2345: a galaxy cluster with non-symmetric radio
relics.
Boschin W., Barrena R., Girardi M.
<Astron. Astrophys., 521, A78-78 (2010)>
=2010A&A...521A..78B 2010A&A...521A..78B
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Photometry, SDSS ;
Radial velocities
Keywords: galaxies: clusters: individual: Abell 2345 -
galaxies: clusters: general - galaxies: distances and redshifts
Abstract:
The connection of cluster mergers with the presence of extended,
diffuse radio sources in galaxy clusters is still debated.
We aim to obtain new insights into the internal dynamics of the
cluster Abell 2345. This cluster exhibits two non-symmetric radio
relics well studied through recent, deep radio data.
Our analysis is based on redshift data for 125 galaxies acquired at
the Telescopio Nazionale Galileo and on new photometric data acquired
at the Isaac Newton Telescope. We also use ROSAT/HRI archival X-ray
data. We combine galaxy velocities and positions to select 98 cluster
galaxies and analyze the internal dynamics of the cluster.
Description:
Multi-object spectroscopic observations of A2345 were carried out at
the TNG telescope in August 2008. We used DOLORES/MOS with the LR-B
Grism 1, yielding a dispersion of 187Å/mm. We used the new E2V CCD,
a matrix of 2048x2048 pixels with a pixel size of 13.5um. In total we
observed four MOS masks for a total of 147 slits. Total exposure times
were of 1h for three masks and 1.5h for the remaining mask.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 59 125 Velocity catalog of 125 spectroscopically measured
galaxies in the field of the cluster A2345
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See also:
J/A+A/529/A128 : Velocity catalog of A545 galaxies (Barrena+, 2011)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number of galaxy in the cluster
4 A1 --- n_Seq [*] * indicates the BCG (brightest central)
6- 7 I2 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 16 F5.2 s RAs Right ascension (J2000)
18 A1 --- DE- Declination sign (J2000)
19- 20 I2 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 28 F4.1 arcsec DEs Declination (J2000)
30- 34 F5.2 mag g'mag TNG g' magnitude
36- 40 F5.2 mag r'mag TNG r' magnitude
42- 46 F5.2 mag i'mag TNG i' magnitude
48- 53 I6 km/s RV Radial velocity
55- 57 I3 km/s e_RV rms uncertainty on RV
59 I1 --- Mmb [1/2] Membership: 1=member, 2=non-member
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 22-Aug-2011