J/ApJS/188/280 Spectroscopic catalog in 24 clusters (Stern+, 2010)
Cosmic chronometers: constraining the equation of state of dark energy.
II. A spectroscopic catalog of red galaxies in galaxy clusters.
Stern D., Jimenez R., Verde L., Stanford S.A., Kamionkowski M.
<Astrophys. J. Suppl. Ser., 188, 280-289 (2010)>
=2010ApJS..188..280S 2010ApJS..188..280S
ADC_Keywords: Clusters, galaxy ; Redshifts ; Spectroscopy ; Morphology
Keywords: cosmology: observations
Abstract:
We present a spectroscopic catalog of (mostly) red galaxies in 24
galaxy clusters in the redshift range 0.17<z<0.92 obtained with
the LRIS instrument on the Keck I telescope. Here we describe the
observations and the galaxy spectra, including the discovery of three
cD galaxies with LINER emission spectra, and the spectroscopic
discovery of four new galaxy-galaxy lenses in cluster environments.
All but two of the galaxy clusters observed as part of this experiment
were previously known.
Description:
Nine nights were awarded for this experiment between 2007 February and
2008 September with LRIS (Low Resolution Imaging Spectrometer) on the
Keck I telescope.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 81 27 The 24 galaxy clusters observed
table3.dat 146 514 Spectroscopic Results
refs.dat 41 13 References
--------------------------------------------------------------------------------
See also:
J/ApJS/78/1 : Galaxies in 7 clusters 0.35<z<0.55 (Dressler+, 1992)
J/A+A/297/61 : E+A galaxies in Cl0939+472 (Belloni+, 1995)
J/A+AS/118/65 : BRI + redshifts in Cl0939+472 + Cl0016+161 (Belloni+, 1996)
J/ApJS/113/1 : CNOC cluster redshift survey catalogs. III. (Ellingson+ 1997)
J/ApJS/122/51 : Spectroscopic cat. of 10 rich galaxy clusters (Dressler+ 1999)
J/A+A/372/391 : Spectroscopic Survey of Cl 0024+1654 (Czoske+, 2001)
J/A+A/427/397 : Redshifts of 5 EDisCS galaxy clusters (Halliday+, 2004)
J/ApJ/665/1067 : Velocities in Cl 0024+16 and MS 0451-03 (Moran+, 2007)
J/ApJ/671/1503 : Cl 0024+16 and MS 0451-03 spectrophotometry (Moran+, 2007)
J/A+A/482/419 : ESO Distant Cluster Survey, EDisCS. II (Milvang-Jensen+ 2008)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Cluster Cluster name, as in table3 (truncated)
10- 26 A17 --- Name Complete galaxy cluster name
28- 29 I2 h RAh Hour of right ascension (J2000)
31- 32 I2 min RAm Minute of right ascension (J2000)
34- 37 F4.1 s RAs Second of right ascension (J2000)
39 A1 --- DE- Declination sign (J2000)
40- 41 I2 deg DEd Degree of declination (J2000)
43- 44 I2 arcmin DEm Arcminute of declination (J2000)
46- 47 I2 arcsec DEs Arcsecond of declination (J2000)
49- 53 F5.3 --- z Redshift
55- 64 A10 "YYYY/MM/DD" Date UT date of observation
65 A1 --- --- [-]
66- 67 I2 d Dfin ? Final observation date (DD)
69- 74 F6.1 deg PA [-125/140] Position angle
76- 90 A15 --- Note Comments
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 A8 --- Cluster Galaxy cluster designation (truncated)
10- 21 A12 --- ID Object designation
23- 24 I2 h RAh Hour of Right Ascension (J2000)
26- 27 I2 min RAm Minute of Right Ascension (J2000)
29- 34 F6.3 s RAs Second of Right Ascension (J2000)
36 A1 --- DE- Sign of the Declination (J2000)
37- 38 I2 deg DEd Degree of Declination (J2000)
40- 41 I2 arcmin DEm Arcminute of Declination (J2000)
43- 48 F6.3 arcsec DEs Arcsecond of Declination (J2000)
50- 54 F5.3 --- z ?=0 Redshift (0.0 for stars)
56 A1 --- q_z [AB] Quality of z (1)
58- 62 A5 --- Class Classification (2)
64-128 A65 --- Notes Additional notes on object (previous
publication - see refs.dat file - or line(s))
130-146 A17 --- Name Galaxy cluster name (as in table2)
--------------------------------------------------------------------------------
Note (1): Redshift quality as follows:
A = Very reliable redshifts based on multiple, well-observed features.
Redshifts are conservatively estimated to have uncertainties of 0.002.
B = Reliable redshifts, but often based on a single feature - e.g., the
single emission feature detected is assumed to be either Lyα or
[OII], or a break is identified, but with insufficient fidelity to
derive a precision redshift (30 objects among de 514).
Redshifts are assumed to have uncertainties of 0.004.
Note (2): Spectra classification according to the following:
* = Stars (59) - many are late-type stars of spectral class M (as indicated
in column Notes).
AGN = Active galaxies (3).
E = Early-type or elliptical galaxy, showing only spectral breaks and
absorption lines
S = Late-type or spiral galaxy, showing emission lines such as [OII],
Hβ, [OIII], and Hα, typical of star-forming galaxies (87).
E+S = Spectra showing both absorption and emission lines (35).
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode Bibcode
24- 41 A18 --- Aut First author's name
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Stern et al. Paper I: H(z) measurements. 2010JCAP...02..008S 2010JCAP...02..008S
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 09-Jun-2010