J/A+A/388/1 Redshifts of five EIS clusters (Hansen+, 2002)
Multi-object spectroscopy of low redshift EIS clusters. I.
Hansen L., Olsen L.F., Jorgensen H.E.
<Astron. Astrophys. 388, 1 (2002)>
=2002A&A...388....1H 2002A&A...388....1H
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: cosmology: observations - galaxies: distances and redshifts -
galaxies: clusters: general
Abstract:
We report the results of the first multi-object spectroscopic
observations at the Danish 1.54m telescope at La Silla, Chile.
Observations of five cluster candidates from The ESO Imaging Survey
Cluster Candidate Catalog are described. From these observations we
confirm the reality of the five clusters with measured redshifts of
0.11≤z≤0.35. We estimate velocity dispersions in the range
294-621km/s indicating rather poor clusters. This, and the measured
cluster redshifts are consistent with the results of the matched
filter procedure applied to produce the Cluster Candidate Catalog.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 45 38 Redshifts obtained in the EIS0946-2029 field
tablea2.dat 45 18 Redshifts obtained in the EIS0947-2120 field
tablea3.dat 45 37 Redshifts obtained in the EIS0948-2044 field
tablea4.dat 45 12 Redshifts obtained in the EIS0949-2101 field
tablea5.dat 45 19 Redshifts obtained in the EIS0956-2059 field
--------------------------------------------------------------------------------
See also:
J/A+A/409/439 : Redshifts of 11 EIS clusters (Olsen+, 2003)
J/A+A/379/740 : ESO Imaging Survey (EIS) (Arnouts+, 2001)
J/A+A/384/81 : ESO Imaging Survey. CDFS point sources (Hatziminaoglou+, 2002)
J/A+A/392/741 : Stellar Catalogue in the Chandra DFS (Groenewegen+ 2002)
J/A+AS/137/75 : ESO Imaging Survey. IV. (Zaggia+, 1999)
J/A+AS/137/83 : ESO Imaging Survey. VII. (Scodeggio+, 1999)
Table 3: Observed cluster redshift, observed dispersion in redshift, corrected
line-of-sight velocity dispersion, and the number of observed members.
--------------------------------------------------------------------------------
Cluster zcl sigmacl Vr Objects
km/s km/s
--------------------------------------------------------------------------------
EIS0946-2029 0.1107 0.00172 445 28
EIS0947-2120 0.1910 0.00127 294 12
EIS0948-2044 0.1818 0.00168 407 27
EIS0949-2101 0.3528 0.00247 537 08
EIS0956-2059 0.2797 0.00270 621 15
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea?.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Seq Sequential number (G1)
4- 5 I2 h RAh Right ascension (J2000)
7- 8 I2 min RAm Right ascension (J2000)
10- 13 F4.1 s RAs Right ascension (J2000)
15 A1 --- DE- Declination sign (J2000)
16- 17 I2 deg DEd Declination (J2000)
19- 20 I2 arcmin DEm Declination (J2000)
22- 23 I2 arcsec DEs Declination (J2000)
26- 30 F5.2 mag Vmag V magnitude
32- 35 F4.2 mag V-I V-I colour index (EIS I magnitude)
37- 42 F6.4 --- z Redshift
43 A1 --- u_z Uncertaitny flag on z (1)
44 A1 --- n_z [e] e: objects with identified emission lines
45 A1 --- Note [b] b: Redshifts for accepted members, i.e.
deviating less than 3.5σ(Cl)
--------------------------------------------------------------------------------
Note (1): Whenever no convincing spectral features could be identified
despite of a clear correlation peak the value is followed by a colon.
--------------------------------------------------------------------------------
Global notes:
Note (G1): Objects are identified as
Table A1: [HOJ2002] EIS J0946-2029 NN
Table A2: [HOJ2002] EIS J0947-2120 NN
Table A3: [HOJ2002] EIS J0948-2044 NN
Table A4: [HOJ2002] EIS J0949-2101 NN
Table A5: [HOJ2002] EIS J0956-2059 NN
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 22-Sep-2003