VII/251 SBS/Zwicky cluster relation (Gyulzadian+, 2008)
On the Relation of Second Byurakan Surevy galaxies with Zwicky clusters.
I. Data.
Gyulzadian M.V., Petrosian A.R.
<Astrophysica in press (2008)>
=2008Ap.....51..349G 2008Ap.....51..349G
ADC_Keywords: Galaxy catalogs ; Clusters, galaxy ; Radial velocities
Keywords: SBS galaxies - clusters of galaxies
Abstract:
In the same area covered by Second Byurakan Survey and CGCG, there are
1677 SBS galaxies, of which 892 are positioned inside the contours of
Zwicky clusters. Data on these galaxies and respective clusters are
presented in different tables, according to whether they are galaxies
which are members of clusters or their substructures, probable
or possible members. Projection cases are considered separately.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 59 112 SBS galaxies which are real members of the Zwicky
clusters with only one redshift value determined
with more than one galaxy (counting SBS galaxies)
table2.dat 59 158 Cases in which clusters have two or more values of
mean velocity in B-PPV (Baieisi-Pillastrini et
al., 1984A&AS...56..363B 1984A&AS...56..363B) and their differences
are more the 2000km/s.
SBS galaxies is a member of one subgroup
table3.dat 55 87 Cases of SBS galaxies which are members of
foreground or background groups containing more
than one galaxy.
All these groups are from the notes of B-PPV
table4.dat 63 79 Cases in which SBS galaxy is the only object
with measured redshift in the cluster
table5.dat 59 24 SBS galaxies which are probable members of
clusters (2000km/s<ΔV<4000km/s)
table6.dat 55 110 SBS galaxies which are projected on the cluster
(V>4000km/s)
table7.dat 58 487 All cases in which SBS galaxy is positioned within
the contours given in the Zwicky catalogue, but
there are no velocities either for the cluster or
for the galaxy or for either of them
sbs.dat 52 1861 SBS positions and redshift.
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See also:
VII/49 : Galaxies and Clusters of Galaxies (CGCG) (Zwicky, 1968)
II/223 : First Byurakan Survey (FBS), 2nd Program (Abrahamian et al.,
J/A+AS/147/169 : Accurate positions of 2978 SBS objects (Bicay+, 2000)
J/AJ/124/1283 : Faint Markarian galaxies of SBS. III. (Stepanian+, 2002)
Byte-by-byte Description of file: table[125].dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Zwicky cluster designation (HHMM.m+DDMM, B1950)
12 A1 --- m_Cluster Multiplicity index on Cluster
14- 21 A8 --- Type Cluster type (G4)
22- 26 I5 km/s HRVc ? Cluster heliocentric radial velocity
27 A1 --- n_HRVc [*] Recalculated HRVc (G1)
29- 33 A5 --- NGal Number of galaxies with published redshifts
used to compute the mean HRV
35- 43 A9 --- SBS SBS galaxy designation (G2)
45- 49 I5 km/s HRVs ? SBS galaxy heliocentric radial velocity
51 A1 --- n_SBS [*] Individual Notes (3)
53- 57 A5 --- Abell Coincident Abell cluster (G3)
59 I1 --- Tab ? Number of the table containing data on SBS
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Note (3): The galaxies SBS 0805+577, SBS 0806+573, SBS 0806+579A,
SBS 0806+579B belong to two Zwicky clusters: Zw 0810.1+5183
(see table2). It is possible, that Zw 0810.1+5183 is a subgroup
of Zw 0756.1+5616.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Zwicky cluster designation (1)
12 A1 --- m_Cluster Multiplicity index on Cluster
14- 18 I5 km/s HRVc ? Heliocentric radial velocity of the cluster
or the subgroups
19 A1 --- n_HRVc [*] Recalculated HRVc (2)
21- 25 A5 --- NGal Number of galaxies used to compute the mean HRV
27- 31 I5 km/s HRVg ? Group heliocentric radial velocity
32 A1 --- n_HRVg [*] Recalculated HRVg (3)
34- 37 A4 --- NGal2 Number of galaxies with published redshifts
used to compute the mean HRV
39- 47 A9 --- SBS SBS galaxy designation (G2)
49- 53 I5 km/s HRVs ? SBS galaxy heliocentric radial velocity
55 I1 --- Tab ? Number of the table containing data on SBS
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Note (1): Cluster and subgroups having foreground or background groups
Note (2): Subgroup velocities recalculated with velocities of SBS galaxies
which are new members of clusters. Other velocities are from B-PPV
Note (3): Group velocities recalculated with velocities of SBS galaxies
which are members of this group
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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- 11 A11 --- Cluster Zwicky Cluster designation (HHMM.m+DDMM, B1950)
13- 16 A4 --- Dist Cluster distance class
18- 24 A7 --- Type Cluster type (G4)
26- 34 A9 --- SBS SBS galaxy designation (G2)
36- 40 I5 km/s HRVs ? SBS galaxy heliocentric radial velocity
42- 45 F4.2 mm Diam ? SBS galaxy diameter
47- 50 F4.2 mm Diam10 ? Mean value of diameters of 10 near galaxies
52- 55 F4.2 mm e_Diam10 ? rms uncertainty on Diam10
57- 61 A5 --- Abell Coincident Abell cluster (G3)
63 I1 --- Tab ? Number of the table containing data on SBS
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Byte-by-byte Description of file: table[67].dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Zwicky Cluster designation (HHMM.m+DDMM, B1950)
12 A1 --- m_Cluster Multiplicity index on Cluster
14- 17 A4 --- Dist Cluster distance class
19- 23 I5 km/s HRVc ? Cluster heliocentric radial velocity
24 A1 --- n_HRVc [*] Recalculated HRVc (G1)
26- 30 A5 --- NGal Number of galaxies with published redshifts
used to compute the mean HRV
32- 40 A9 --- SBS SBS galaxy designation (G2)
42- 47 I6 km/s HRVs ? SBS galaxy heliocentric radial velocity
49- 53 A5 --- Abell Coincident Abell cluster (G3)
55 I1 --- Tab ? Number of the table containing data on SBS
56 A1 --- --- [,]
58 I1 --- Tab2 ? Number of other table containing data on SBS
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Byte-by-byte Description of file: sbs.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- SBS SBS designation
13- 14 I2 h RAh Right Ascension J2000 (hours)
16- 17 I2 min RAm Right Ascension J2000 (minutes)
19- 23 F5.2 s RAs Right Ascension J2000 (seconds)
26 A1 --- DE- Declination J2000 (sign)
27- 28 I2 deg DEd Declination J2000 (degrees)
30- 31 I2 arcmin DEm Declination J2000 (minutes)
33- 36 F4.1 arcsec DEs Declination J2000 (seconds)
39- 44 F6.4 --- z ? Redshift
45 A1 --- u_z Uncertainty flag (:) on redshift
48- 52 F5.2 mag mag Optical magnitude
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Global notes:
Note (G1): Cluster velocities recalculated with velocities of SBS
galaxies which are new members of clusters
Note (G2): See J.A. Stepanian, 2005RMxAA..41..155S 2005RMxAA..41..155S.
Note (G3): Abell clusters, Abell (1958, Cat. VII/4), coincident with
Zwicky clusters denominations are given.
Note (G4): the cluster types are
comp. = Compact: clusters show a single outstanding concentration
among the bright member galaxies. Within this concentration ten
or more galaxies appear in actual contact. Many of these clusters
display a high degree of spherical symmetry.
m.comp. = Medium compact: clusters characterized either by a single
concentration where, however, the ten brightest galaxies are not
in contact but separated by several of their owen diameters, or
by several distinct condensations, some of which may be quite compact.
open = clusters without obvious condensations, but in various
locations the number of galaxies per square degree is at least
five times as great as in the surrounding field, so that the
cluster appears as a cloud superposed on the background.
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Acknowledgements:
Marieta Gyulzadian,
History:
* 03-Mar-2008: Tables received from Author
* 26-May-2008: File 'sbs.dat' with positions and redshift of
SBS galaxies kindly supplied by the author
(End) Patricia Vannier [CDS] 03-Mar-2008