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J/ApJ/365/66 Redshifts of a sample of distant Abell clusters ( Huchra+ 1990)
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A deep Abell cluster redshift survey
HUCHRA J.P., HENRY J.P., POSTMAN M., GELLER M.J.
<Astrophys. J. 365, 65 (1990)>
=1990ApJ...365...66H (SIMBAD/NED RefCode)
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ADC_Keywords: Surveys; Clusters, galaxy; Redshifts
Keywords: galaxies: clustering-galaxies: distances and redshifts
Abstract:
We have measured redshifts for a complete sample of 145 Abell clusters
of galaxies. The sample covers a 561 square degree region at high
Galactic latitude. The median redshift of the clusters in the sample
is 0.16. For R >= 1 clusters the correlation length is r_0_ = 21 h^-1^
Mpc. The amplitude of the correlation function is a factor of 1.4 less
than that obtained by Bahcall and Soneira, but the difference is
within the 1 {sigma} uncertainties. In this sample we cannot detect
clustering on scales >~ 70 h^-1^ Mpc. Although the maps of the cluster
distribution in redshift space show a large void of diameter ~20,000
km s^-1^, frequent occurrence of such large empty regions is
consistent with the smaller scale behaviour of the correlation function
of the survey.
Large-scale peculiar motions are <~1000 km s^-1^. This limit is
inconsistent with the claim of detection by Bahcall, Soneira, and
Burgett of ~2000 km/s peculiar motions. We suggest that the
earlier result is affected by the Corona Borealis supercluster, which
contributes more than a third of the excess pairs in the shallower
survey.
Notes: Some errors have been corrected. See notes of "table2.dat".
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . this file
table1.dat 79 145 Mean redshift of Abell clusters
table2.dat 80 352 Redshifts of individual galaxies
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- CluID [A] A for "Abell" added at CDS for clarity
2- 5 I4 --- Anumb [909,2013]+ number in the Abell catalogue
7- 8 I2 h RAh [0,24[ Right ascension (B1950) of the
cluster centre (hours)
9- 12 F4.1 min RAm [0,60[ right ascension (minutes)
13 A1 --- DE- declination sign (B1950)
14- 15 I2 deg DEd [0,90] declination of the cluster center
(degrees) (B1950)
16- 17 I2 arcmin DEm declination (minutes)
19 I1 --- R [0,3] Abell's richness class
21 I1 --- D [3,7] Abell's distance class
23- 26 F4.1 mag m1 [13.6,18.3]? brightness of 1st-ranked galaxy
from Leir & vandenBergh 1977, ApJS 34, 381
(1),(2)
28- 31 F4.1 mag m10 [15.3,18.4] brightness of 10th-ranked galaxy
(1),(2)
34- 37 F4.3 --- Zest []? estimated redshift (2)
40- 44 F5.4 --- Zobs observed redshift
46- 47 I2 --- Ngal [1,16]? number of galaxies with measured z
49- 58 A10 --- Ref reference code(s), see (3)
60- 79 A20 --- NOTE notes (4)
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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 --- Name name of object, either in format hhmm+ddmm
appended by A or B for close pairs of
galaxies, or N.... for an NGC number
12- 13 I2 h RAh [0,24[? Right ascension (B1950) of galaxy
15- 16 I2 min RAm [0,60[? Right ascension (minutes)
18- 21 F4.1 s RAs [0,60[? right ascension (seconds)
23 A1 --- DE- declination sign (B1950)
24- 25 I2 deg DEd [0,90]? declination (B1950) of galaxy
(degrees)
27- 28 I2 arcmin DEm [0,60[? declination (minutes)
30- 31 I2 arcsec DEs [0,60[? declination (seconds)
34- 38 F5.4 --- Zobs []? observed redshift
41- 46 I6 km/s Vhel []? heliocentric radial velocity
49- 51 I3 km/s Verr []? heliocentric radial velocity error
54- 56 A3 --- Ref reference code(s), see (3)
58- 64 A7 --- Abell Abell name 'Annnn' or 'Annnn/m', the latter
stands for 'Annnn or Annnm' (5) (6)
66- 80 A15 --- NOTE notes as published
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Notes:
(1) Due to the different origin of the data in columns m1 and m10, it may
occur (as for A1124) that m1 > m10.
(2) Zeroes in the rightmost decimal digit were removed for m1, m10 and Zest.
(3) Reference codes:
CFH = Ciardullo, Ford and Harms 1985, ApJ 293, 69
DJ = Jenner 1974, ApJ 191, 55
F = Fetisova 1982 SvA 25, 647
HGT = Hoessel, Gunn and Thuan 1980, ApJ 241, 486
HH+ = Hintzen, et al. 1982, AJ 87, 1656
HSM = Hintzen, Scott and McKee 1980, ApJ 242, 857
JH = This paper, Mt. Hopkins data, ApJ 365, 66
OWT = Owen, White, & Thronson 1988, AJ 95, 1
PH = This paper, Mauna Kea data, ApJ 365, 66
RK = Rhee and Katgert 1988, A&AS 72, 243
SGH = Schneider, Gunn, and Hoessel 1983, ApJ 264, 337
SRS = Sarazin, Rood and Struble 1982, A&A 108, L7
(4) These notes do not appear in the published table, but were kept
in the electronic version as received from M. Postman
(5) This column entry appeared as the headline of each paragraph for one
cluster in the published version.
(6) In some cases the galaxy is associated with two galaxy clusters
indicated as 'A1283/9 and A1289/3'. Note that the published version
incorrectly states A1283/8 and A1289/8. H.A. 7-Mar-94
History:
The files were forwarded to CDS by Heinz J. Andernach (courtesy M. Postman).
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(End) Heinz Andernach [CDS] 04-Mar-1994