J/A+A/372/391 Spectroscopic Survey of Cl 0024+1654 (Czoske+, 2001)
A wide-field spectroscopic survey of the cluster of galaxies C10024+1654.
I. The catalogue.
Czoske O., Kneib J.-P., Soucail G., Bridges T.J., Mellier Y.,
Cuillandre J.-C.
<Astron. Astrophys. 372, 391 (2001)>
=2001A&A...372..391C 2001A&A...372..391C
ADC_Keywords: Clusters, galaxy ; Redshifts ; Photometry ; Equivalent widths
Keywords: galaxies: clusters: Cl 0024+1654 - cosmology: observations -
large-scale structure of the Universe
Description:
This wide-field spectroscopic survey of Cl 0024+1654
(ZwCl 0024.0+1652) is based on multi-object spectroscopy done with MOS
on CFHT and LDSS_2 on WHT. Photometric measurements are based on
CFHT/UH8k (I-band) and CFHT/CFH12k (V-band) images. The survey covers
an area of 21x25arcmin2 around the centre of Cl 0024+1654.
The catalogue includes the data from Dressler et al., 1999,
Cat. J/ApJS/122/51 with corrections made by us. Due to additional
corrections provided by Alan Dressler since the paper was accepted,
the present catalogue differs slightly from the description in the
paper (see Historical note below).
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
00 26 32.7 +17 09 43 ZwCl 0024+1652 = ClG 0024+16
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table4.dat 173 688 The catalogue
--------------------------------------------------------------------------------
See also:
J/ApJS/122/51 : 10 rich galaxy clusters spectroscopic catalog (Dressler+ 1999)
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- Seq Catalogue number of each object
6- 12 F7.2 arcsec oRA Right ascension offset from cluster centre (1)
15- 21 F7.2 arcsec oDE Declination offset from cluster centre (1)
24- 29 F6.4 --- z ? Redshift
32 A1 --- q_z [A-DNS1-4]? Quality code for redshift (2)
35- 39 F5.2 mag Vmag ? V magnitude (3)
42- 46 F5.2 mag V-I ? V-I colour (4)
49- 53 F5.1 0.1nm EW[OII] ? Equivalent width of [OII]3727
56- 59 F4.1 0.1nm e_EW[OII] ? Error on EW[OII]
62- 66 F5.1 0.1nm EW[OIII] ? Equivalent width of [OIII]5007
69- 73 F5.1 0.1nm EWHa ? Equivalent width of H_alpha
76- 79 F4.1 0.1nm EWHb ? Equivalent width of H_beta
82- 86 F5.1 0.1nm EWHd ? Equivalent width of H_delta
89- 92 F4.1 0.1nm e_EWHd ? Error on EWHd
95- 97 F3.1 --- br ? Strength of 4000Å break
100-103 F4.1 --- S/N ? Signal-to-noise ratio
106-119 A14 --- runs Identification of observing runs (5)
122-173 A52 --- lines Lines identified in spectrum
--------------------------------------------------------------------------------
Note (1): Positions are give relative to 00:26:35.70 +17:09:43.06
(J2000). oRA increases towards East.
Note (2): The quality code refers to the redshift identification.
Codes A-D and S are used for observing runs 1-4:
A = secure
B = probable
C = possible
D = uncertain
S = star
N = unidentified (but spectrum available)
Redshifts from run 1 have no quality code.
For objects taken from Cat. J/ApJS/122/51, we give the code from
that catalogue, ranging from 1-4.
Note (3): Total magnitude
Note (4): Colour in 14 pixel = diameter aperture
Note (5): the codes are:
1 = CFHT/MOS, 1992
2 = CFHT/MOS. 1995
3 = WHT/LDSS-2. 1996
4 = CFHT/MOS, 1996
Dxxx = identified with object xxx from J/ApJS/122/51.
-------------------------------------------------------------------------------
History:
Since the paper (2001A&A...372..364C 2001A&A...372..364C) was accepted, we have received a
number of corrections from Alan Dressler, concerning coordinates and
identifications in Cat. J/ApJS/122/51. We have incorporated these
corrections in the present catalogue. This has brought the number of
entries in our catalogue to 688 (compared to 687 as stated in the
paper) and has changed slightly the numbering of our entries. For all
galaxy identification numbers larger than 444 (in Figure 2 and Table 4
of the paper), add 1 to get the number in the present catalogue; also
change the identification number 378 to 379.
Acknowledgements: Oliver Czoske
Jean-Paul Kneib
(End) Oliver Czoske [Obs. Midi-Pyrenees], Patricia Bauer [CDS] 07-Jun-2001