VII/201 Cross-Identifications in Abell and Zwicky clusters (Kalinkov+ 1998)
Cross-Identifications in the Abell and Zwicky clusters of galaxies
Kalinkov M., Valtchanov I., Kuneva I.
<Bull. Inf. CDS 49 (unpublished)>
=1998yCat.7201....0K 1998yCat.7201....0K
ADC_Keywords: Clusters, galaxy ; Cross identifications
Description:
A new identification between Abell and Zwicky clusters of galaxies and
vice versa is completed. Two convenient files are generated with
necessary data for comparing both catalogs; remarks on the cluster
matching are also included.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
azsrt.dat 117 1999 Abell to Zwicky cross-identifications
azrem.dat 84 873 Remarks on azsrt.dat
zasrt.dat 140 1991 Zwicky to Abell cross-identifications
zarem.dat 80 910 Remarks on zasrt.dat
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See also:
VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
Byte-by-byte Description of file: azsrt.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Abell [1/2712]+ Abell cluster designation
6 A1 --- Cflag *[cn] 'c' indicates a comment in file azrem.dat
8- 10 I3 --- Field Field where Abell cluster center lies on
12 A1 --- Code *[012+n]! Code for correspondence between A-
and Z-clusters
14- 17 I4 --- ZCl [1/9133]? Zwicky cluster designation
19- 22 F4.2 deg Rab Abell cluster radius
24- 27 F4.2 deg Delta ? Angular distance between Abell and Zwicky
clusters centers
29- 32 F4.2 deg Rz ? Zwicky cluster radius
34- 37 F4.2 deg Rabc Abell cluster radius with cosmology
39-118 A80 --- Znames Up to 10 names (field and consequent number
in that field)
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Note on Cflag:
'c' indicates that a comment exists in file azrem.dat
'n' indicates that no Zwicky cluster exists toward the Abell one.
Note on Code: There are four possibilities:
'0' : no matching,
'1' : Abell cluster identical with Zwicky cluster,
'2' : one Abell cluster is equal to two Zwicky clusters,
'+' : two or more Abell clusters are equal to one Zwicky cluster.
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Byte-by-byte Description of file: azrem.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Abell [4/2706]+ Abell cluster as in file azsrt.dat
6- 84 A79 --- Text *Text of comment
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Note on Text: The codes in comments are with respect to the Abell cluster:
'hb': half background Zwicky or Abell cluster,
'hf': half foreground,
'he': half equidistant,
'f' : foreground,
'b' : background,
'e' : equidistant,
'n' : no Zwicky cluster towards the Abell cluster.
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Byte-by-byte Description of file: zasrt.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ZCl [1/9133]+ Zwicky cluster consequent number
6 A1 --- Cflag [c] indicates a comment in file zarem.dat
8 A1 --- Code *[0123+]! Code for correspondence between
Z- and A-clusters
10- 13 I4 --- Abell [1/2712]? Abell cluster designation
15- 18 F4.2 deg Rz Zwicky cluster radius
19- 23 F5.2 deg Delta ? Angular distance between Zwicky and Abell
clusters
25- 28 F4.2 deg Rab ? Abell cluster radius
30- 33 F4.2 deg Rabc ? Abell cluster radius using z
35-140 A106 --- Znames Up to 12 Zwicky cluster names (field and
consequent number in that field)
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Note on Code: There are five possibilities:
'0' : no matching,
'1' : Zwicky cluster identical with Abell cluster,
'2' : one Zwicky cluster is equal to two Abell clusters,
'3' : one Zwicky cluster is equal to three Abell clusters,
'+' : two Zwicky clusters are equal to one Abell cluster.
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Byte-by-byte Description of file: zarem.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ZCl [1/9133]+= Zwicky cluster as in file azsrt.dat
6- 80 A75 --- Text *Text of note
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Note on Text: several lines of comments may exist for a cluster;
the ZCl number if then repeated. The codes in comments are with
respect to the Zwicky cluster:
'hb': half background Abell or Zwicky cluster,
'hf': half foreground,
'he': half equidistant,
'f' : foreground,
'b' : background,
'e' : equidistant.
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Authors' addresses:
M. Kalinkov
I. Valtchanov
Institute of Astronomy, Bulg. Acad. Sci.
72 Tsarigradsko Chausse blvd.
BG-1784 Sofia, Bulgaria
(End) Francois Ochsenbein [CDS] 17-Apr-1998