VII/28 Southern Groups and Clusters of Galaxies (Duus, Newell 1977)
Southern Groups and Clusters of Galaxies Duus A., Newell E.B. <Astrophy. Journ. Suppl., 35, 209 (1977)> =1977ApJS...35..209D
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:
FileName Lrecl Records Explanations
ReadMe 80 . This file data.dat 80 957 Catalog Data
Byte-by-byte Description of file: data.dat
Bytes Format Units Label Explanations
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
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 2254-367 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.
(End) Paul Kuin & C.-H. Joseph Lyu [Hughes STX/NASA] 14-Jan-1997
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|