J/ApJS/56/403 X-ray survey of clusters of galaxies. IV. (Kowalski+, 1984)
An X-ray survey of clusters of galaxies. IV. A survey of southern clusters and
a compilation of upper limits for both Abell and Southern clusters.
KOWALSKI M.P., ULMER M.P., CRUDDACE R.G., WOOD K.S.
<Astrophys. J. Suppl. Ser. 56, 403 (1984)>
=1984ApJS...56..403K 1984ApJS...56..403K (SIMBAD/NED Reference)
Keywords: galaxies: clustering - luminosity function - X-rays: sources
Description:
The HEAO 1 A-1 X-ray survey of clusters of galaxies has been completed.
We present X-ray error boxes and intensities or explicit upper limits
for all clusters in the Abell catalog, and for the catalog of southern
clusters and groups by Duus and Newell. The total of more than 3600
clusters surveyed makes this the most comprehensive survey of cluster
X-ray emission to date. We have determined a subset of the southern sky
catalog which is suitable for statistical studies and which may be
combined with the Abell catalog.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1 193 128 Abell cluster X-ray sources
table2 189 74 Southern cluster X-ray sources
table3 131 2712 Abell cluster survey
table4 117 951 Southern cluster survey
table5a 100 26 L type confused regions for Abell clusters
table5b 100 60 O type confused regions for Abell clusters
table5c 20 29 *UWC confused regions for Abell clusters
table6a 100 14 L type confused regions for southern clusters
table6b 100 35 O type confused regions for southern clusters
table6c 21 26 *UWC type confused regions for southern clusters
refs 153 121 References
--------------------------------------------------------------------------------
Note on table5c and table6c: These clusters do not have error box. They
represent the lowest luminosity upper limits
Byte-by-byte Description of file: table1
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- Name Cluster name (Abell 1958)
6 A1 --- n_Name [#] A "#" indicates new HEAO A-1 source
7 A1 --- n_Name [*] Asterisk indicates cluster is not in
Abell's statistical sample.
9- 14 F6.2 deg RAdeg Right ascension 1950 of optical center
16- 21 F6.2 deg DEdeg Declination 1950 of optical center
23- 28 F6.2 deg RAdeg2 Right ascension 1950 of X-ray
error box center
30- 35 F6.2 deg DEdeg2 Declination 1950 of X-ray error box center
37- 42 F6.2 deg RA1 90% confidence X-ray error box 1st corner RA
44- 49 F6.2 deg DE1 90% confidence X-ray error box 1st corner DE
51- 56 F6.2 deg RA2 90% confidence X-ray error box 2nd corner RA
58- 63 F6.2 deg DE2 90% confidence X-ray error box 2nd corner DE
65- 70 F6.2 deg RA3 90% confidence X-ray error box 3d corner RA
72- 77 F6.2 deg DE3 90% confidence X-ray error box 3d corner DE
79- 84 F6.2 deg RA4 90% confidence X-ray error box 4th corner RA
86- 91 F6.2 deg DE4 90% confidence X-ray error box 4th corner DE
93- 96 F4.2 deg2 Area Area of error box
99 I1 --- D Distance class (Abell 1958)
102 I1 --- R Richness class (Abell 1958)
105-110 A6 --- B-M Bautz-Morgan class from LV, unless noted.
111 A1 --- u_B-M A colon means uncertain classification
112-115 A4 --- R-S Revised Rood-Sastry class (1)
117-122 A6 --- R-S2 Alternate classification under primary
classification
124-129 F6.4 --- z Redshift
131-136 F6.4 --- e_z []? rms uncertainty on z. If no value is
given, redshift error is assumed to be
0.0210 (Kowalski 1982)
138 I1 --- r_z [1-8] Redshift reference (2)
141-146 F6.2 10-3ct/cm2/s FX Flux in 10-3 A-1 counts cm-2 s-1. Data were
summed in 1-day intervals (Kowalski 1982)
149-152 F4.2 10-3ct/cm2/s e_FX rms uncertainty on FX
155-159 F5.2 10-7W log(LX) Log of the X-ray luminosity (2-6 keV).
(Ho=75km/s/Mpc)
162-190 A29 --- Other Other objects which could have been
identified with this error box.
192-193 I2 --- Notes [1-19]? Individual notes (3)
--------------------------------------------------------------------------------
Note (1): D<5: Revised Rood-Sastry class from Struble and Rood 1982
D=5: Revised Rood-Sastry class from Struble and Rood 1983
D=6: Revised Rood-Sastry class from Struble 1982
Note (2): (1) Abell 1958.
(2) Corwin 1974.
(3) Hoessel, Gunn, and Thuan 1980.
(4) KUC.
(5) LV.
(6) Noonan 1981.
(7) de Vaucouleurs 1961.
(8) Hintzen, Scott, and McKee 1981.
Note (3): Individual notes:
(1) Distance, richness, and B-M classes from Sandage, Kristian, and
Westphal 1976. Optical position is average of both spiral and
elliptical components from de Vaucouleurs 1961.
(2) Arp peculiar galaxy 102 is nearby (Biermann et al. 1981).
Comparison shows that A2252 is the dominant source.
(3) Error box contains globular cluster NGC 7089, but NGC 7089 is not
the X-ray source (Grindlay 1980).
(4) B-M class from Corwin 1974.
(5) B-M classification discrepancy with Corwin 1974.
LV classification adopted.
(6) B-M class from Sandage, Kristian, and Westphal 1976.
(7) Flux is not 3.5, but cluster is kept as an identified source.
Paper I gave this identification to A2159, and Paper III gave
it to A2152. Here we have assigned A2151 to the source according
to our identification criteria (see text; Giovanelli 1983).
(8) The error box is too far from the cluster for our association
criteria, but HEAO-2 analysis shows that there is a source at
the position of A2177.
(9) Flux is not 3.5, but cluster is kept as an identified source.
(10) Error box contains both A396 and AWM 7 (Schwartz et al. 1980).
Comparison shows that A396 is the dominant source.
(11) MKW 3 observed to have extended emission (Kriss et al. 1980).
Comparison shows that A2063 is the dominant source.
(12) HEAO-2 detected QSO 1028+313 at 5.5 X 10-12 ergs cm-2 s-1
(Zamorani et al. 1981), therefore half of the flux is from A1045.
(13) Possible contamination with NGC 3227 (Marshall et al. 1980).
Our HEAO-2 result shows that A992 is the dominant source.
Monitor proportional counter data confirm this (Halpern 1980).
(14) There is some source contamination with NGC 5548 (Piccinotti et
al. 1982), but A-1 able to resolve cluster component.
(15) X-ray source 3C 390.3 is nearby (Marshall et al. 1979), but is not
the source.
(16) X-ray source Mrk 501 is nearby (Piccinotti et al. 1982). Error box
slightly outside cluster, but kept as the identification.
(17) Error box slightly outside cluster, but kept as the identification
(18) Revised Rood-Sastry class is "L10a".
(19) Bimodal redshift distribution (Noonan 1981); redshift for A2319A
chosen for cluster. Also, B-M classification discrepancy with
Corwin 1974. LV classification adopted.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name Cluster name (DN)
10 A1 --- n_Name [#] A "#" indicates new HEAO A-1 source
11 A1 --- n_Name [*] Asterisk indicates cluster is not in
Abell's statistical sample.
13- 18 F6.2 deg RAdeg Right ascension 1950 of optical center (DN)
20- 25 F6.2 deg DEdeg Declination 1950 of optical center (DN)
27- 32 F6.2 deg RAdeg2 Right ascension 1950 of X-ray
error box center
34- 39 F6.2 deg DEdeg2 Declination 1950 of X-ray error box center
41- 46 F6.2 deg RA1 90% confidence X-ray error box 1st corner RA
48- 53 F6.2 deg DE1 90% confidence X-ray error box 1st corner DE
55- 60 F6.2 deg RA2 90% confidence X-ray error box 2nd corner RA
62- 67 F6.2 deg DE2 90% confidence X-ray error box 2nd corner DE
69- 74 F6.2 deg RA3 90% confidence X-ray error box 3d corner RA
76- 81 F6.2 deg DE3 90% confidence X-ray error box 3d corner DE
83- 88 F6.2 deg RA4 90% confidence X-ray error box 4th corner RA
90- 95 F6.2 deg DE4 90% confidence X-ray error box 4th corner DE
97-100 F4.2 deg2 Area Area of error box
103 A1 --- D Distance class (DN)
106 A1 --- T [OMC] Concentration class (DN)
109-114 A6 --- B-M Bautz-Morgan class from White 1980
115 A1 --- u_B-M A colon means uncertain classification
117 A1 --- R-S R-S classification (Lugger 1978)
119-121 I3 --- N []? Number of galaxies in the cluster
uncorrected for field (DN)
122 A1 --- u_N Uncertainty flag on N
123-128 F6.4 --- z []? Redshift
130-135 F6.4 --- e_z []? rms uncertainty on z. If no value is
given, redshift error is assumed to be
0.0210 (Kowalski 1982)
137 I1 --- r_z [1-9]? Redshift reference (1)
140-145 F6.2 10-3ct/cm2/s FX Flux in 10-3 A-1 counts cm-2 s-1. Data were
summed in 1-day intervals (Kowalski 1982)
148-151 F4.2 10-3ct/cm2/s e_FX rms uncertainty on FX
154-158 F5.2 10-7W log(LX) []? Log of the X-ray luminosity (2-6 keV).
(Ho=75km/s/Mpc)
161-183 A23 --- Other Other objects which could have been
identified with this error box.
188-189 I2 --- Notes [1-30]? Individual notes (2)
--------------------------------------------------------------------------------
Note (1): (1) DN: Duus and Newell 1977
(2) Chincarini, Tarenghi, and Bettis 1981.
(3) Noonan 1981.
(4) Yahil and Vidal 1977.
(5) Sandage 1975a.
(6) Zwicky distance class and redshift estimated directly from
ESO films.
(7) de Vaucouleurs, de Vaucouleurs, and Corwin 1976.
(8) de Vaucouleurs 1975.
(9) Dressler 1980b.
Note (2): Individual notes:
(1) Rose 5 (Rose 1976).
(2) Rose 6.
(3) Error box slightly outside cluster, but kept as the
identification.
(4) Very poor group (White 1980).
(5) Ser 031-05 (Sersic 1974).
(6) Ser 033-07.
(7) Ser 040-06.
(8) Snow 23 (Snow 1970).
(9) Dev G8 (de Vaucouleurs 1975). X-ray Seyfert NGC 2997 is part of
this group (Piccinotti et al. 1982).
(10) Antilia group.
(11) Abell cluster 1060 (Sandage 1975a). Revised R-S reference is C6
(Struble and Rood 1982).
(12) Klem 15 (Klemola 1969).
(13) Centaurus cluster.
(14) Klem 21. Ex Hya is the source, not the cluster.
(15) Klem 22.
(16) Dev G4. Cen A (NGC 5128) is the source, not the cluster.
(17) Sandage 1975. X-ray source MCG 6-30-15 is nearby
(Marshall et al. 1980), but is not the source.
(18) X-ray Seyfert ESO140G-43 is part of this group
(Marshall et al. 1979).
(19) There are two error boxes associated with this cluster.
(20) Double cluster. Error box is slightly outside cluster, but
kept as the identification.
(21) Ser 137-02. Pavo cluster. There are two error boxes associated
with this cluster.
(22) Ser 138-07. Not given D/C classes by DN, but is on film #186
which they surveyed.
(23) Ser 145-03.
(24) Very poor group (White 1980).
(25) Klem 34. X-ray source NGC 7163 is nearby (Marshall et al. 1979),
but is not the source.
(26) Ser 149-11. Not given D/C classes by DN, but is on film #146
which they surveyed. Error box slightly outside cluster, but
kept as the identification.
(27) Ser 151-02. X-ray source NGC 7213 is nearby (Piccinotti et al.
1982), but is not the source.
(28) Rose 85. Error box slightly outside cluster, but kept as the
identification.
(29) Rose 107. NGC 7582 is part of Grus Quartet, G27
(de Vaucouleurs 1975).
(30) Klem 44.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table3
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterisk indicates cluster is not in
Abell's statistical sample
3- 7 A5 --- Name Name (Abell 1958).
13 A1 --- Code HEAO-1 A-1 letter code (see code table)
15- 21 F7.3 deg RAdeg Right ascension 1950 of the optical center
(Sastry and Rood 1971)
23- 29 F7.3 deg DEdeg Declination 1950 of optical center
(Sastry and Rood 1971)
31- 37 F7.3 deg GLON Cluster optical center new galactic longitude
(epoch 1950)
39- 45 F7.3 deg GLAT Cluster optical center new galactic latitude
(epoch 1950)
47 A1 --- l_Flux [<] Limit flag on Flux
48- 57 E10.4 ct/cm2/s Flux Flux or upper limit to flux in A-1 cts/cm2/s
Data were summed in 1-day intervals for S and
D clusters, and 4-day intervals for all
other clusters (Kowalski 1982).
59 A1 --- l_log(LX) [<] Limit flag on LX
60- 64 F5.2 10-7W log(LX) Log of the X-ray luminosity or 2 upper limit
(2-6 keV). (Ho=75km/s/Mpc).
66- 71 F6.4 --- z Redshift. For clusters with bimodal
distributions (Noonan 1981) we choose one
component: A2151B, A2241B, A2319A, and A2645B
73- 78 F6.4 --- e_z []? rms uncertainty on z. If no value is
given, error is assumed to be
0.0210 (Kowalski 1982).
80- 82 I3 --- o_z []? Number of galaxies used to calculate
measured redshifts.
84 I1 --- r_z [1-8]? Redshift reference (1)
86- 89 F4.1 mag Mag Magnitude of 10th brightest galaxy
(Abell 1958).
91 I1 --- D Distance class (Abell 1958).
93 I1 --- R Richness class (Abell 1958).
95- 97 I3 --- N Abell's counts of galaxies (Abell 1980).
99-100 I2 mm Radius Cluster optical radius in mm (LV).
102-107 A6 --- B-M Bautz-Morgan class.
108 A1 --- u_B-M A colon means uncertain classification.
109 I1 --- r_B-M [1-5]? B-M class reference (2)
111-115 A5 --- R-S Revised Rood-Sastry class.
117 I1 --- r_R-S [1-3]? Revised R-S class reference (3)
119-127 A9 --- R-S2 Alternate Revised R-S class.
--------------------------------------------------------------------------------
Note (1): Redshift reference.
(1) Abell 1958.
(2) Corwin 1974.
(3) Hoessel, Gunn, and Thuan 1980.
(4) KUC.Kowalski et al., 1983
(5) LV. Leir et al., 1977
(6) Noonan 1981.
(7) de Vaucouleurs 1961.
(8) Hintzen, Scott, and McKee 1981.
Note (2): Bautz-Morgan class reference.
(1) LV. Leir et al., 1977
(2) Corwin 1974.
(3) Sandage, Kristian, and Westphal 1976.
(4) Bautz and Morgan 1970.
(5) Bautz 1972.
Note (3): Revised Rood-Sastry class reference.
(1) Struble and Rood 1982.
(2) Struble and Rood 1983.
(3) Struble 1982.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterisk indicates cluster is not in
Abell's statistical sample
3- 11 A9 --- Name Name (DN). (1)
13 A1 --- Code HEAO-1 A-1 letter code (see code table)
15- 21 F7.3 deg RAdeg Right ascension 1950 of optical center (DN)
23- 29 F7.3 deg DEdeg Declination 1950 of optical center (DN)
31- 37 F7.3 deg GLON Cluster optical center new galactic longitude
39- 45 F7.3 deg GLAT Cluster optical center new galactic latitude
47 A1 --- l_Flux [<] Limit flag on Flux
48- 57 E10.4 ct/cm2/s Flux Flux or 1 sigma upper limit to flux in
A-1 cts/cm2/s. Data were summed in 1-day
intervals for S and D clusters, and 4-day
intervals for all other clusters
(Kowalski 1982).
59 A1 --- l_log(LX) [<] Limit flag on LX
60- 64 F5.2 10-7W log(LX) Log of the X-ray luminosity or 2 sigma upper
limit (2-6 keV). (Ho=75km/s/Mpc).
66- 71 F6.4 --- z Redshift.
73- 78 F6.4 --- e_z []? rms uncertainty on z. If no value is
given, error is assumed to be 0.0210
(Kowalski 1982), except for values from
Dressler 1980b which are 0.001.
80- 82 I3 --- o_z []? Number of galaxies used to calculate
measured redshifts.
83- 84 I2 --- r_z [1-9]? Redshift reference (2)
91 A1 --- D Distance class (DN) (3)
93 A1 --- T [OMC] Concentration class (DN)
95- 97 I3 --- N []? Number of galaxies in the cluster
uncorrected for field (DN)
102-107 A6 --- B-M Bautz-Morgan class.
108 A1 --- u_B-M A colon means uncertain classification.
109 I1 --- r_B-M [1]? B-M class reference (4)
111-115 A5 --- R-S Rood-Sastry class.
117 I1 --- r_R-S [1-2]? R-S class reference (5)
--------------------------------------------------------------------------------
Note (1): DN identified 710 new clusters and groups, but included 248 previously
identified clusters in their catalog. This table contains only 951
entries, because in some cases DN identified two clusters of
different distances at the same coordinates. Our results are not
capable of resolving the X-ray emission in such cases.
Note (2): Redshift reference:
(1) DN.
(2) Chincarini, Tarenghi, and Bettis 1981.
(3) Noonan 1981.
(4) Yahil and Vidal 1977.
(5) Sandage 1975a.
(6) Zwicky distance class and redshift estimated directly from
ESO films.
(7) de Vaucouleurs, de Vaucouleurs, and Corwin 1976.
(8) de Vaucouleurs 1975.
(9) Dressler 1980b.
(10) (unexplained) (occurs four times)
Note (3): Of the 782 clusters located on the 97 ESO films which DN surveyed,
only 667 were given distance and concentration classes
Note (4): Bautz-Morgan class reference:
(1) White 1980
Note (5): Rood-Sastry class reference:
(1) Lugger 1978.
(2) Struble and Rood 1982. Revised R-S class.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table5a table5b
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterix indicates cluster is not in
Abell's statistical sample
3- 7 A5 --- Name Name (Abell 1958)
14- 19 F6.2 deg RAdeg X-ray error box center right ascension (1950)
21- 26 F6.2 deg DEdeg X-ray error box center declination (1950)
28- 33 F6.2 deg RA1 90% confidence X-ray error box 1st corner RA
35- 40 F6.2 deg DE1 90% confidence X-ray error box 1st corner DE
42- 47 F6.2 deg RA2 90% confidence X-ray error box 2nd corner RA
49- 54 F6.2 deg DE2 90% confidence X-ray error box 2nd corner DE
56- 61 F6.2 deg RA3 90% confidence X-ray error box 3d corner RA
63- 68 F6.2 deg DE3 90% confidence X-ray error box 3d corner DE
70- 75 F6.2 deg RA4 90% confidence X-ray error box 4th corner RA
77- 82 F6.2 deg DE4 90% confidence X-ray error box 4th corner DE
84- 87 F4.2 deg2 Area Area of error box
90- 94 F5.2 10-3ct/cm2/s FX Flux in 10-3 A-1 counts cm-2 s-1. Data were
summed in 1-day intervals (Kowalski 1982)
97-100 F4.2 10-3ct/cm2/s e_FX rms uncertainty on FX
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table5c
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterix indicates cluster is not in
Abell's statistical sample
3- 7 A5 --- Name Name (Abell 1958)
11 A1 --- l_log(LX) Limit flag on LX
12- 16 F5.2 10-7W log(LX) 2 sigma limit of the log of X-ray luminosity
(2-6 keV) (Ho=75km/s/Mpc)
20 A1 --- Code HEAO1 A-1 letter code (see code table)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6a table6b
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterix indicates cluster is not in
Abell's statistical sample
3- 11 A9 --- Name Name (DN)
14- 19 F6.2 deg RAdeg X-ray error box center right ascension
(1950) (1)
21- 26 F6.2 deg DEdeg X-ray error box center declination (1950) (1)
28- 33 F6.2 deg RA1 90% confidence X-ray error box 1st corner RA
35- 40 F6.2 deg DE1 90% confidence X-ray error box 1st corner DE
42- 47 F6.2 deg RA2 90% confidence X-ray error box 2nd corner RA
49- 54 F6.2 deg DE2 90% confidence X-ray error box 2nd corner DE
56- 61 F6.2 deg RA3 90% confidence X-ray error box 3d corner RA
63- 68 F6.2 deg DE3 90% confidence X-ray error box 3d corner DE
70- 75 F6.2 deg RA4 90% confidence X-ray error box 4th corner RA
77- 82 F6.2 deg DE4 90% confidence X-ray error box 4th corner DE
84- 87 F4.2 deg2 Area Area of error box
90- 94 F5.2 10-3ct/cm2/s FX Flux in 10-3 A-1 counts cm-2 s-1. Data were
summed in 1-day intervals (Kowalski 1982)
96-100 F5.2 10-3ct/cm2/s e_FX rms uncertainty on FX
-------------------------------------------------------------------------------
Note (1): These error boxes were constructed in the data analysis, but they
do not fulfill the criteria necessary for the association of the
error box with the cluster (see text).
In table6a, the error box is too large (L)
In table6b, the error box does not overlap a 1 Abell radius circle
which is concentric with the cluster center (O)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table6c
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2 A1 --- n_Name [*] Asterix indicates cluster is not in
Abell's statistical sample
3- 11 A9 --- Name Name (DN)
13 A1 --- l_log(LX) Limit flag on LX
14- 18 F5.2 10-7W log(LX) 2 sigma limit of the log of X-ray luminosity
(2-6 keV) (Ho=75km/s/Mpc)
21 A1 --- Code HEAO1 A-1 letter code (see code table)
--------------------------------------------------------------------------------
Table: code HEAO-1
--------------------------------------------------------------------------------
C: Clusters for which error boxes could not be defined. "C" clusters are
regions with relatively strong emission (∼1-3x10-3ct/cm2/s), but are
sufficiently "confused" so that error boxes could not be obtained.
D: Firmly identified X-ray clusters. When two or more clusters could be
associated with a given source, the primary choice is given the letter
"D" and alternates are given the letter "T"
L: Clusters have error boxes that are "larger" than 1 deg2
O: Clusters have error boxes which do not "overlap" the circle of one
Abell radius.
S: Firmly identified X-ray clusters. S refers to a "single" identified
cluster
T: For firmly identified X-ray clusters, when two or more clusters could be
associated with a given source, alternates are given the letter "T"
U: Clusters for which error boxes could not be defined. Error box
construction was not attempted for "U" clusters, for which "upper"
limits are available only.
W: Clusters for which error boxes could not be defined. "W" clusters have
relatively "weak" emission, so that error box construction was not
attempted.
--------------------------------------------------------------------------------
History: The files were forwarded to CDS by Heinz J. Andernarch
(courtesy M.J. West, Aug. 1991)
(End) Patricia Bauer [CDS] 30-Jan-1995