J/AJ/131/1280 Redshifts of HRS galaxies (Fleenor+, 2006)
Redshifts and velocity dispersions of galaxy clusters in the
Horologium-Reticulum supercluster.
Fleenor M.C., Rose J.A., Christiansen W.A., Johnston-Hollitt M.,
Hunstead R.W., Drinkwater M.J., Saunders W.
<Astron. J., 131, 1280-1287 (2006)>
=2006AJ....131.1280F 2006AJ....131.1280F
ADC_Keywords: Clusters, galaxy ; Redshifts ; Velocity dispersion
Keywords: galaxies: clusters: general - galaxies: distances and redshifts -
galaxies: structure
Abstract:
We present 118 new optical redshifts for galaxies in 12 clusters in
the Horologium-Reticulum supercluster (HRS) of galaxies. For 76
galaxies, the data were obtained with the Dual Beam Spectrograph on
the 2.3m telescope of the Australian National University at Siding
Spring Observatory. After combining 42 previously unpublished
redshifts with our new sample, we determine mean redshifts and
velocity dispersions for 13 clusters in which previous observational
data were sparse.
Description:
Spectroscopic observations were conducted on 2004 November 14-17 with
the 2.3m telescope of the Australian National University (ANU) at
Siding Spring Observatory. Eighteen cluster galaxies were observed
during our survey with the multifiber Six Degree Field (6dF)
instrument on the United Kingdom Schmidt Telescope (UKST) in 2004
November.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 87 144 Redshift data for galaxes in
Horologium-Reticulum Supercluster
table2.dat 58 13 Revised mean redshifts and velocity dispersions
for HRS clusters
table3.dat 52 21 Reliable cluster redshifts in the HRS kinematic core
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See also:
J/AJ/130/957 : Radial velocities of 6dF galaxies (Fleenor+, 2005)
J/A+AS/129/399 : The ENACS Catalogue. V. (Katgert+ 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Cluster Cluster name
12- 37 A26 --- Galaxy IAU galaxy name
39- 40 I2 h RAh Hour of Right Ascension (J2000)
42- 43 I2 min RAm Minute of Right Ascension (J2000)
45- 49 F5.2 s RAs Second of Right Ascension (J2000)
51 A1 --- DE- Sign of the Declination (J2000)
52- 53 I2 deg DEd Degree of Declination (J2000)
55- 56 I2 arcmin DEm Arcminute of Declination (J2000)
58- 61 F4.1 arcsec DEs Arcsecond of Declination (J2000)
63- 67 F5.2 mag bJmag SuperCOSMOS bJ apparent magnitude
69 A1 --- f_cz [*] Flag on cz (1)
71- 75 I5 km/s cz ? Radial velocity
77- 78 I2 km/s e_cz ? Uncertainty in cz
80- 84 I5 km/s cz1 ? Published radial velocity
86- 87 I2 --- r_cz1 ? Reference for cz1 (2)
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Note (1): A "*" indicates whether the galaxy is foreground or background
to the cluster based on the iterative method of calculating the mean
cluster redshift and velocity dispersion (described in Section 4).
Note (2): Reference for cz1, defined as follows:
1 = 6dF observations, unpublished (2004);
2 = Grazian et al. (2002, Cat. J/AJ/124/2955);
3 = 6dFGS, data release 1, Jones et al. (2004MNRAS.355..747J 2004MNRAS.355..747J);
4 = ENACS, Katgert et al. (1998, Cat. J/A+AS/129/399);
5 = Klamer, I., (private communication);
6 = Smith et al. (2004, Cat. J/AJ/128/1558);
7 = Lauberts & Valentijn (1989, Cat. VII/115);
8 = NED team;
9 = Muriel et al. (1995, Cat. J/AJ/110/1032);
10 = Lucey et al. (1983MNRAS.203..545);
11 = Mathams, unpublished (1989);
12 = Loveday et al. (1996, Cat. J/ApJS/107/201);
13 = Dalton et al. (1994, Cat. J/MNRAS/269/151).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Cluster Cluster name
12- 13 I2 h RAh Hour of Right Ascension (J2000.0)
15- 18 F4.1 min RAm Minute of Right Ascension (J2000.0)
20 A1 --- DE- Sign of the Declination (J2000.0)
21- 22 I2 deg DEd Degree of Declination (J2000.0)
24- 27 F4.1 arcmin DEm Arcminute of Declination (J2000.0)
29 A1 --- l_Ngal Limit flag on Ngal
30 I1 --- Ngal Number of galaxies used to establish
previously published mean velocity
32- 36 I5 km/s czprev Previously published mean velocity
38 I1 --- r_czprev Reference for czprev
40- 41 I2 --- Ngal2 Number of galaxies on which the new cluster
properties were based
43- 47 I5 km/s New mean cluster velocity
48 A1 --- u_ Uncertainty flag on
50- 52 I3 km/s e_ Error in
54- 57 I4 km/s sigma New cluster velocity dispersion
58 A1 --- u_sigma Uncertainty flag on sigma
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Cluster Cluster name (1)
12- 13 I2 h RAh Hour of Right Ascension (J2000.0)
15- 18 F4.1 min RAm Minute of Right Ascension (J2000.0)
20 A1 --- DE- Sign of the Declination (J2000.0)
21- 22 I2 deg DEd Degree of Declination (J2000.0)
24- 27 F4.1 arcmin DEm Arcminute of Declination (J2000.0)
29- 31 A3 --- Rich ACO richness or APMCC equivalent
33- 40 F8.6 --- z Average redshift taken from source
42- 46 I5 km/s cz Recessional velocity
48- 50 I3 --- Ngal Number of galaxies used to calculate
kinematic properties
52 A1 --- r_z Reference (2)
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Note (1): Cluster name, where "S" denotes poor clusters from ACO.
Note (2): References defined as follows:
1 = This study;
2 = Katgert et al. (1998, Cat. J/A+AS/129/399);
3 = Alonso et al. (1999MNRAS.308..618A 1999MNRAS.308..618A);
4 = I. Klamer 2005, private communication;
5 = Lucey et al. (1983MNRAS.203..545L 1983MNRAS.203..545L);
6 = Caldwell & Rose (1997AJ....113..492C 1997AJ....113..492C).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 05-Feb-2007