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VII/28 Southern Groups and Clusters of Galaxies (Duus, Newell 1977)
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Southern Groups and Clusters of Galaxies
Duus A., Newell E.B.
<Astrophy. Journ. Suppl., 35, 209 (1977)>
=1977ApJS...35..209D
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ADC_Keywords: Clusters, galaxy
Description:
The catalog is the result of a survey of film copies of the ESO B
plates for southern clusters of galaxies. Because of the varying
quality of the ESO films and the scattered placement of the fields
searched, the present survey is not intended for use in statistical
studies. Nevertheless, the clusters and groups are listed from a
representative sample of nearby to distant systems that is spread
across the southern sky. The catalog contains cluster identification
number based on a right ascension, declination numbering scheme; the
ESO field number (see ADC catalog 6030); position of cluster center on
plate (in mm); concentration class type of cluster; estimate of the
number of galaxies; asterisk for uncertainty assignment previous
value; distance class; and previous designations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data.dat 80 960 Catalog Data
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Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- ID *Cluster identification number
12- 14 I3 --- Fnum *? ESO field number
18- 20 I3 mm Ldist1 *? Linear distance (east-west w.r.t. S.E.)
24- 26 I3 mm Ldist2 *? Linear distance (north-south w.r.t. S.E.)
30 A1 --- Cclass *[CMO] Concentration class or type (T)
34- 36 I3 --- NGal *? The estimated number of galaxies
37 A1 --- u_NGal *[*] Uncertain estimate
40 A1 --- Dclass *[NMDVE] Distance class
43- 80 A38 --- Pident *Previous identified clusters and groups
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Note on ID:
Cluster identification number based on a right ascension, declination
numbering scheme. These equatorial coordinates were determined with respect
to a group of SAO stars. (ID = XXYY+ZZZ where XX = hours of right ascension,
YY = minutes of right ascension and ZZZ = tenths of degrees of declination
where the equatorial coordinates are at epoch 1950.) This catalogue includes
all previously identified clusters and groups with delta <= -27 deg. The STR
designation in the published catalogue refers to Stromlo,
Note on Fnum:
European Southern Observatory (ESO) field number: The numbers of the ESO/SRC
fields searched in this catalogue are as follows-
23-25,28-32,34,45-48,50-51,53-55,57,
71-76,79-86,102-109,111-112,114,116-120,
140-142,144-150,153-154,158-161,184-186,
188-190,194-197,200-201,230-232,235-236,
238-239,242,283,286,288-290,293-294,322, 325,345,356
Note on Ldist1:
Linear distance in the east-west direction of cluster center with respect
to the southeast corner (lower lefthand corner) in the cluster map.
Note on Ldist2:
Linear distance in the north-south direction of cluster center with respect
to the southeast corner (lower lefthand corner) in the cluster map.
Note on Cclass:
Concentration class or type (T) based on the visual appearance of the
cluster and on the relative separations of the member galaxies as follows:
C = compact
M = medium compact
O = open
(This scheme is based on the classification as defined in Zwicky, F.,
Herzog, E. and Wild, P. 1961, Catalogue of Galaxies and Clusters of
Galaxies, California Institute of Technology
Note on NGal:
Estimate, N9 of the number of galaxies within region covered by the obvious
density enhancement. This estimate is not corrected for contamination by
background galaxies and will reflect the varying quality of the ESO
exposures (which causes the limiting magnitude to differ from plate to
plate).
Note on u_NGal:
An asterisk (*) is given in this column to designate uncertainty in the
value given in bytes 34-36. A colon is given in the published version of the
catalogue.
Note on Dclass:
Distance class, D, based on the apparent Al brightness of the member
galaxies where:
N = near V <= 15000
M = medium distant 15000 < V <= 30000
D = distant 30000 < V <= 45000
V = very distant 45000 < V <= 60000
E = extremely distant V > 60000
(based on calibration by Zwicky, Herzog and Wild - cf. reference in byte-30)
Velocity (V) ranges are given in units of km/sec.
Note on Pident:
Previously identified clusters and groups groups have been renumbered in the
given numbering scheme (cf. bytes 1-8) but original designations and some
references are given here.
Note: not all entries in the catalogue which qualify as previously identified
clusters and groups contain data for the fields:
ESO number, x and y, T, N and D.
References used in these bytes are given in Table 1. An asterisk (*) in
these bytes implies additional information as given in Table 2 for the
appropriate entry.
Table 1. References Cited by Selected Data Entries:
DEVM de Vaucouleurs, G. 1956, Mem. Commonwealth Obs.
(Mt. Stromlo), No. 13
DEV de Vaucouleurs, G J 1975, in Galaxies and the Universe,
vol. 9 of Stars and Stellar Systems, ed. A. Sandage, M. Sandage,
and J. Kristian (Chicago: University of Chicago Press), Chap. 14
KLEM Klemola, A.R. 1969, A.J., 74, 804
SNOW Snow, T.P. 1970, A.J., 75, 237
SER Sersic, J.L. 1974, Ap. Space Sci., 28, 365
ROSE Rose, J.A. 1976, Astr. Ap. Suppl, 23, 109
S Sandage, A. 1975, Ap. J. 202, 563
K groups are the subset of Karachentsev's list given by
Ozernoy, L.M. and Reinhardt, M. 1976, Astr. Ap., 52, 31
Table 2. Additional Information for Data Entries:
0004-541 Rose 04
0008-573 Rose 07
0033-395 Sculptor, K2
0112-321 Rose 52
0307-369 Rose 62
0311-533 Klem 06
0321-374 Fornax cluster, S, Dev G53, K13
0329-526 Klem 08
0415-557 Dorado group
1027-353 Antlia group, S
1034-272 Abell 1060 (Abell, G.O. 1958, Ap.J. suppl., 3, 211)
1038-459 Ser 077-09
1108-373 NGC 3557 group, S
1224-393 NGC 4373 group
1246-410 Centaurus, Klem 19 + 20, S
1302-303 NGC 4936 group
1322-428 K47
1334-337 IC 4296 group
1347-305 IC 4329 cluster, S
1852-542 IC 4797 group, S
1904-618 NGC 6769 group
2004-485 Telescopium group, S
2010-448 Ser 136-05
2014-711 Pavo group, Ser 137-02, S
2103-474 Indus group, S, Dev G45
2206-474 NGC 7213 group
2214-487 also called 151-04 by Sersic
2217-554 Rose 72
2221-567 Rose 75
2254-3O7 IC 1459 (Grus) group, Dev G27, K61
2311-429 Rose 105
2317-423 Rose 110
Table 3. Known Errata:
1. After 0001-550 insert 0001-702 50 137 136 M 20 V
2. Delete 0018-595
3. 0408-609 Delete C 20 V Insert M 50 E
4. Delete 0414-458
5. 2246-468 Insert Rose 88 in the Previous Designation column
Remarks and Modifications:
The original ADC documentation by Theresa A. Nagy (1979) was used to create
this ReadMe file.
The machine-readable version of the Catalog of Southern Group and Clusters
of Galaxies (Duus, A. and Newell, B. 1977, Ap. J. Suppl., 35, 209) was
received from Dr. G. Share (Naval Research Laboratory) in 1978. This
catalogue was originally received on magnetic tape written with an ASC II
character set and was converted to an EBCDIC character set. All known errata
to this catalogue are given in Table 3.
The following records have a colon(:) after the value in the N column but
the machine-readable version after the conversion ASC II to EBCDIC no longer
contained a colon so that an asterisk (*) was added to this version.
0139-548 0143-533 0144-532 0152-569 0157-565 0200-587 0306-670 0329-505
0342-538 0428-540 2046-477 2047-681 2055-495 2055-670 2059-688 2203-501
2220-634 2254-664
Acknowledgments:
The original ADC documentation by T.A. Nagy (1979) was used to create
this ReadMe file.
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(End) Paul Kuin & C.-H. Joseph Lyu [Hughes STX/NASA] 14-Jan-1997