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VII/110A Rich Clusters of Galaxies (Abell+ 1989)
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A Catalogue of Rich Clusters of Galaxies
Abell G.O., Corwin Jr. H.G., Olowin R.P.
<Astrophys. J. Suppl. Ser. 70, 1 (1989)>
=1989ApJS...70....1A
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ADC_Keywords: Clusters, galaxy ; Galaxy catalogs ; Nonstellar objects ;
Surveys ; Positional data ; Magnitudes ; Fundamental catalog
Keywords: galaxies: clusters: general - galaxies: distances and redshifts -
galaxies: structure
Description:
This is an all-sky catalog of 4073 rich clusters of galaxies, each
having at least 30 members within the magnitude range m_3_ to m_3_ + 2
(m_3_ is the magnitude of the third brightest cluster member) and each
with a nominal redshift less than 0.2. The southern data have been
collected from a survey of UK 1.2 m Schmidt telescope IIIa-J plates
and films and have been reduced to the systems defined by the northern
data previously published by G.O. Abell. A revised northern catalog,
including Bautz-Morgan types and redshifts where known, is also
included.
Nomenclature Notes:
The recommended acronym used to designate the clusters from
this list (the "Abell" clusters) is:
ACO (numbers 1 through 4076, 1-2712 being Northern,
2713-4076 Southern)
ACO S (numbers 1 through 1174), supplementary Southern clusters.
In the literature, the following acronyms have also been found:
A , Abell, ABCG, AC, S (the last for supplementary Southern clusters)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
docu.doc 79 135 Explanation of tables 3-6
table3.dat 148 2712 Revised northern "Abell Catalog"
table4.dat 158 1364 Southern "Abell Catalog"
table5.dat 155 1174 Supplementary southern clusters
table6.dat 155 274 Overlap zone clusters
notes.dat 79 3316 Notes to tables 4, 5 and 6.
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See also:
VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ACO [1,2712]+ "Abell" number
7- 8 I2 h RAh right ascension (hours) (B1950)
10- 13 F4.1 min RAm [0,60.0] right ascension (minutes)
15 A1 --- DE- declination sign
16- 17 I2 deg DEd declination (degrees) (B1950)
19- 20 I2 arcmin DEm [0,60.0] declination (minutes)
43- 49 A7 --- BMtype [- I:] cluster classification in the Bautz-
Morgan system
53- 55 I3 ct Count [0,] number of cluster members between m3
and m3+2, corrected for background
87- 88 I2 h RA2000h right ascension (hours) (J2000)
90- 93 F4.1 min RA2000m [0,60.0] right ascension (minutes)
95 A1 --- DE2000- declination sign
96- 97 I2 deg DE2000d declination (degrees) (J2000)
99-100 I2 arcmin DE2000m [0,60.0] declination (minutes)
109-111 I3 mm Xpos rectangular coordinates of the
apparent cluster center, referred to the
south-east (lower left) edge of the
Palomar Sky Survey prints (x coordinate)
114-116 I3 mm Ypos same with above (y coordinate)
119-124 F6.2 deg GLON galactic longitude l2
126-131 F6.2 deg GLAT galactic latitude b2
134-138 F5.4 --- z ? cluster redshift from Struble and Rood
(1987b)
141 I1 --- Rich richness, from Abell (1958)
143 I1 --- Dclass distance class, from Abell (1958)
145-148 F4.1 mag m10 red magnitude of the tenth brightest
cluster member, from Abell (1958)
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Note: See "docu.doc" file in detail.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ACO [2713,4076]+ "Abell" number for the
southern rich cluster
7- 8 I2 h RAh += right ascension (hours) (B1950)
10- 13 F4.1 min RAm [0,60.0] right ascension (minutes)
15 A1 --- DE- [-]! declination sign
16- 17 I2 deg DEd declination (degrees) (B1950)
19- 20 I2 arcmin DEm [0,60.0] declination (minutes)
23- 26 A4 --- Field [0-9F]! the Southern Sky Survey Field
number in which the cluster is located
28- 31 I4 mm Xcen rectangular coordinates if the apparent
cluster center, referred to the CENTER of
the Southern Sky Survey Field (+ = east)
33- 36 I4 mm Ycen same with above (+ = north)
39- 41 A3 --- Atype [ IR?:]! cluster classification in Abell's
system: I = irregu lar, R = regular,
IR and RI = intermediate, ":" and "?"
see "docu.doc"
43- 49 A7 --- BMtype [- I:?]! cluster classification in the
Bautz-Morgan system
52 A1 --- --- [(] open parenthesis for u_Count
53- 55 I3 ct Count [0,] number of cluster members between m3
and m3+2, corrected for background
56 A1 --- u_Count [:*?)] uncertainty of the Count
59- 62 F4.1 mag m1 ? weighted mean total V mag. estimated
for the first-ranked cluster member (no
galactic extinction correction has been
applied)
63 A1 --- u_m1 [:?*] ":" = s.d. of more than +-0.5mag
"?" = s.d. of more than +-1.0mag
"*: = known or probable foreground object
65- 68 F4.1 mag m3 weighted mean total V magnitude estimated
for the third-ranked cluster member
(again uncorrected)
69 A1 --- u_m3 [:?*] same with u_M1
71- 74 F4.1 mag m10 weighted mean total V magnitude estimated
for the tenth-ranked cluster member
(again uncorrected)
75 A1 --- u_m10 [:?*] same with u_M1
87- 88 I2 h RA2000h [0,23] right ascension (hours) (J2000)
90- 93 F4.1 min RA2000m [0,60.0] right ascension (minutes)
95 A1 --- DE2000- [+-]! declination sign
96- 97 I2 deg DE2000d [0,90] declination (degrees) (J2000)
99-100 I2 arcmin DE2000m [0,60.0] declination (minutes)
103-107 A5 --- Prev [ BDdKOQRSs] sources of previous listings
B = Braid and MacGillivray (1978), etc.
see "docu.doc"
109-111 I3 mm Xpos rectangular coordinates of the
apparent cluster center, referred to the
south-east (lower left) edge of the
Southern Sky Survey Field (x coordinate)
114-116 I3 mm Ypos same with above (y coordinate)
119-124 F6.2 deg GLON galactic longitude l2
126-131 F6.2 deg GLAT galactic latitude b2
133 A1 --- --- [(] uncertainty parenthesis, open
134-138 F5.4 --- z ? cluster redshift from Struble and Rood
(1987b)
139 A1 --- u_z [)] uncertainty parenthesis, close
141 I1 --- Rich richness, from Abell (1958)
143 I1 --- Dclass distance class, from Abell (1958)
145-148 F4.1 mag m10A magnitude of the tenth brightest cluster
member, corrected for galactic extinction
following Abell's formula
151 I1 --- NF_1 [1,4] number of fields in which the cluster
was found
152 A1 --- Obs_1 [ACO]! observer's initial (A = Abell, C =
Corwin, O = Olowin)
153 A1 --- --- [,] comma
154 I1 --- NF_2 [1,4]? same with NF_1
155 A1 --- Obs_2 [ACO] same with Obs_1
156 A1 --- --- [,] comma
157 I1 --- NF_3 [1,4]? same with NF_1
158 A1 --- Obs_3 [ACO] same with Obs_1
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Note: See "docu.doc" file in detail.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1 A1 --- S [S]! prefix to the supplementary southern
cluster number
2- 5 I4 --- ACOS [1,1174]+ "Abell" number for supplementary
southern cluster
7- 8 I2 h RAh += right ascension (hours) (B1950)
10- 13 F4.1 min RAm [0,60.0] right ascension (minutes)
15 A1 --- DE- [-]! declination sign
16- 17 I2 deg DEd declination (degrees) (B1950)
19- 20 I2 arcmin DEm [0,60.0] declination (minutes)
23- 26 A4 --- Field [0-9F]! the Southern Sky Survey Field
number in which the cluster is located
28- 31 I4 mm Xcen rectangular coordinates if the apparent
cluster center, referred to the CENTER of
the Southern Sky Survey Field (+ = east)
33- 36 I4 mm Ycen same with above (+ = north)
39- 41 A3 --- Atype [ IR?:] cluster classification in Abell's
system: I = irregular, R = regular, IR and
RI = intermediate, ":" and "?"
see "docu.doc"
43- 49 A7 --- BMtype [- I:?]! cluster classification in the
Bautz-Morgan system
52 A1 --- --- [(] open parenthesis for u_Count
53- 55 I3 --- Count number of cluster members between m3
and m3+2, corrected for background (as a
result of "universal" correction, it can
be negative, see paper p11)
56 A1 --- u_Count [:*?)] uncertainty of the Count
59- 62 F4.1 mag M1 weighted mean total V mag. estimated
for the first-ranked cluster member (no
galactic extinction correction has been
applied)
63 A1 --- u_M1 [:?*] ":" = s.d. of more than +-0.5mag
"?" = s.d. of more than +-1.0mag
"*: = known or probable foreground object
65- 68 F4.1 mag M3 weighted mean total V magnitude estimated
for the third-ranked cluster member
(again uncorrected)
69 A1 --- u_M3 [:?*] same with u_M1
71- 74 F4.1 mag m10 weighted mean total V magnitude estimated
for the tenth-ranked cluster member
(again uncorrected)
75 A1 --- u_m10 [:?*] same with u_M1
87- 88 I2 h RA2000h [0,23] right ascension (hours) (J2000)
90- 93 F4.1 min RA2000m [0,60.0] right ascension (minutes)
95 A1 --- DE2000- [+-]! declination sign
96- 97 I2 deg DE2000d [0,90] declination (degrees) (J2000)
99-100 I2 arcmin DE2000m [0,60.0] declination (minutes)
103-107 A5 --- PREV [ BDdKOQRSs] sources of previous listings
B = Braid and MacGillivray (1978), etc.
see "docu.doc"
109-111 I3 mm Xpos rectangular coordinates of the
apparent cluster center, referred to the
south-east (lower left) edge of the
Southern Sky Survey Field (x coordinate)
114-116 I3 mm Ypos same with above (y coordinate)
119-124 F6.2 deg GLON galactic longitude l2
126-131 F6.2 deg GLAT galactic latitude b2
133 A1 --- --- [(] uncertainty parenthesis, open
134-138 F5.4 --- z ? cluster redshift from Struble and Rood
(1987b)
139 A1 --- u_z [)] uncertainty parenthesis, close
141 I1 --- Rich richness, from Abell (1958)
143 I1 --- Dclass distance class, from Abell (1958)
145-148 F4.1 mag m10A magnitude of the tenth brightest cluster
member, corrected for galactic extinction
following Abell's formula
151 I1 --- NF_1 [1,4] number of fields in which the cluster
was found
152 A1 --- Obs_1 [ACO]! observer's initial (A = Abell, C =
Corwin, O = Olowin)
153 A1 --- --- [,] comma
154 I1 --- NF_2 [1,4]? same with NF_1
155 A1 --- Obs_2 [ACO] same with Obs_1
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Note: See "docu.doc" file in detail.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ABELL [1,2712] "Abell" number for the clusters in
the 10 deg overlap zone (-17 to -27 deg)
7- 8 I2 h RAh += right ascension (hours) (B1950)
10- 13 F4.1 min RAm [0,60.0] right ascension (minutes)
15 A1 --- DE- [-]! declination sign
16- 17 I2 deg DEd declination (degrees) (B1950)
19- 20 I2 arcmin DEm [0,60.0] declination (minutes)
23- 26 A4 --- Field [0-9F]! the Southern Sky Survey Field
number in which the cluster is located
28- 31 I4 mm Xcen rectangular coordinates if the apparent
cluster center, referred to the CENTER of
the Southern Sky Survey Field (+ = east)
33- 36 I4 mm Ycen same with above (+ = north)
39- 41 A3 --- Atype [ IR?:]! cluster classification in Abell's
system: I = irregular, R = regular, IR and
RI = intermediate, ":" and "?"
see "docu.doc"
43- 49 A7 --- BMtype [- I:?] cluster classification in the
Bautz-Morgan system
52 A1 --- --- [(] open parenthesis for u_Count
53- 55 I3 ct Count number of cluster members between m3
and m3+2, corrected for background
56 A1 --- u_Count [:*?)] uncertainty of the Count
59- 62 F4.1 mag M1 weighted mean total V mag. estimated
for the first-ranked cluster member (no
galactic extinction correction has been
applied)
63 A1 --- u_M1 [:?*] ":" = s.d. of more than +-0.5mag
"?" = s.d. of more than +-1.0mag
"*: = known or probable foreground object
65- 68 F4.1 mag M3 weighted mean total V magnitude estimated
for the third-ranked cluster member
(again uncorrected)
69 A1 --- u_M3 [:?*] same with u_M1
71- 74 F4.1 mag m10 weighted mean total V magnitude estimated
for the tenth-ranked cluster member
(again uncorrected)
75 A1 --- u_m10 [:?*] same with u_M1
87- 88 I2 h RA2000h [0,23] right ascension (hours) (J2000)
90- 93 F4.1 min RA2000m [0,60.0] right ascension (minutes)
95 A1 --- DE2000- [+-]! declination sign
96- 97 I2 deg DE2000d [0,90] declination (degrees) (J2000)
99-100 I2 arcmin DE2000m [0,60.0] declination (minutes)
103-107 A5 --- PREV [ BDdKOQRSs] sources of previous listings
B = Braid and MacGillivray (1978), etc.
see "docu.doc"
109-111 I3 mm Xpos rectangular coordinates of the
apparent cluster center, referred to the
south-east (lower left) edge of the
Southern Sky Survey Field (x coordinate)
114-116 I3 mm Ypos same with above (y coordinate)
119-124 F6.2 deg GLON galactic longitude l2
126-131 F6.2 deg GLAT galactic latitude b2
133 A1 --- --- [(] uncertainty parenthesis, open
134-138 F5.4 --- z ? cluster redshift from Struble and Rood
(1987b)
139 A1 --- u_z [)] uncertainty parenthesis, close
141 I1 --- Rich richness, from Abell (1958)
143 I1 --- Dclass distance class, from Abell (1958)
145-148 F4.1 mag m10A magnitude of the tenth brightest cluster
member, corrected for galactic extinction
following Abell's formula
151 I1 --- NF_1 [1,4] number of fields in which the cluster
was found
152 A1 --- Obs_1 [ACO]! observer's initial (A = Abell, C =
Corwin, O = Olowin)
153 A1 --- --- [,] comma
154 I1 --- NF_2 [1,4]? same with NF_1
155 A1 --- Obs_2 [ACO] same with Obs_1
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Note: See "docu.doc" file in detail.
Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1 A1 --- Prefix [AS] prefix to the "Abell" cluster number
blank for Abell number from table4.dat
'A' for Abell number from table6.dat
'S' for Abell number from table5.dat
2- 5 I4 --- ACO [1,4076]? "Abell" number
7- 10 A4 --- Field [ 0-9F] the Southern Sky Survey Field
number in which the cluster is located
12- 79 A68 --- Notes Notes for tables 4-6
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Note: These files are slightly amended from the published tables. See
Notes (2) in the Description above.
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Historical Notes:
* The files of notes were provided by courtesy of H.G.Corwin to H.
Andernach; it was numbered A145 in H. Andernach's "List of Astronomical
Catalogues and Documents kindly provided on request by various authors"
* In this revised version (VII/110A), the tables 7A, 7B and 7C
of the paper are appended. The document file, tables 3, 4, 5 and 6 of
the previous version (VII/110) have not been changed, except
removing spaces between '+/-' signs and data, other than the
rectangular coordinates in tables 4, 5, and 6.
* In the tables 7A-7C archived here, following changes were made:
A letter 'A' was added in front of the northern cluster number.
The string 'ASnnnn' for a cluster name was changed to 'Snnnn'.
All Abell cluster names are strictly mentioned in the format (A1,I4),
e.g. 'A 12' also in the text.
* 14-Mar-1994: First archived, Koichi Nakajima <nakajima@higashi.hit-u.ac.jp>
(The date of the latest archiving, see the date of each file.)
* 28-Oct-1995: Inserted zeroes between sign and values of Xcen/Ycen
values in tables 4 and 5.
* 11-Dec-1999: Merged the notes into a single file
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(End) Koichi Nakajima [CDS] 14-Mar-1994