J/ApJS/121/287 The CfA2S catalog (Huchra+, 1999)
The CfA redshift survey: data for the South Galactic Cap.
Huchra J.P., Vogeley M.S., Geller M.J.
<Astrophys. J. Suppl. Ser. 121, 287 (1999)>
=1999ApJS..121..287H 1999ApJS..121..287H (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, optical ; Redshifts
Keywords: galaxies: distances and redshifts -
large-scale structure of universe - surveys
Abstract:
We present redshifts for a sample of 4391 galaxies with magnitude
mB(0)≤15.5 covering 20h≤RA≤4h in right ascension and
-2.5°≤DE≤90° in declination. This sample is complete for all
galaxies in the merge of the Zwicky et al. and Nilson catalogs in the
south Galactic cap. Redshifts for 2964 of these were measured as part
of the second CfA Redshift Survey. The data reveal large voids in the
foreground and background of the Perseus-Pisces Supercluster. The
largest of these voids lies at a mean velocity ∼8000km/s, has diameter
∼5000km/s, and is enclosed by a complex of dense structures. The large
structure known as the Perseus-Pisces Supercluster forms the near side
of this complex. On the far side of this large void, at a mean
velocity ∼12000km/s, there is another coherent dense wall. The
structures in this survey support the view that galaxies generally lie
on surfaces surrounding or nearly surrounding low-density regions or
voids.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
cfa2s.dat 98 4278 CfA survey radial velocities (tables 1 + 4)
refs.dat 130 132 References to cfa2s.dat (table2 of paper)
notes.dat 63 408 Other names of galaxies and notes (table3)
clusters.dat 41 32 Redshifts of Abell and other clusters (table6)
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See also:
VII/193 : The CfA Redshift Catalogue, Version June 1995 (Huchra+ 1995)
Byte-by-byte Description of file: cfa2s.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Name of the galaxy
13- 14 I2 h RAh Right ascension (1950)
16- 17 I2 min RAm Right ascension (1950)
19- 22 F4.1 s RAs Right ascension (1950)
24 A1 --- DE- Declination sign (1950)
25- 26 I2 deg DEd Declination (1950)
28- 29 I2 arcmin DEm Declination (1950)
31- 32 I2 arcsec DEs Declination (1950)
34- 38 F5.2 mag mZW Apparent blue magnitude in Zwicky-B(0) system
39 A1 --- ms [BHMS] Magnitude source (1)
41- 45 I5 km/s HRV ? Heliocentric radial velocity
47- 49 I3 km/s e_HRV ? rms uncertainty on HRV
51- 53 A3 --- r_HRV Velocity source (see refs.dat)
55- 56 I2 --- HType ? Revised Hubble type (2)
58 A1 --- Bar Bar type (3)
60 I1 --- Pec ? Peculiarities (4)
62 A1 --- Lum Luminosity classes (5)
64- 68 F5.1 arcmin diamMaj ? Major axis diameter
70- 73 F4.1 arcmin diamMin ? Minor axis diameter
75- 80 I6 --- UGC ? UGC number
81 A1 --- m_UGC Multiplicity index on UGC
83- 98 A16 --- Note Notes (6)
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Note (1):
H: Split Zwicky magnitude (for multiple galaxies)
B: BT magnitude converted to the B(0)-Zwicky system
M: Markarian & Lipovetskii, 1974 (reference not specified)
S: Sakai, Giovanelli & Wegner, 1994AJ....108...33S 1994AJ....108...33S
Note (2): Hubble types:
-7: Unclassified elliptical
-6: Compact elliptical
-5: E, dwarf elliptical
-4: E/S0
-3: L-, SO-
-2: L, SO
-1: L+, SO+
0: SO/a, SO-a
1: Sa
2: Sab
3: Sb
4: Sbc
5: Sc
6: Scd
7: Sd
8: Sdm
9: Sm, Magellanic spiral
10: Im, Irr I, Magellanic irregular, Dwarf irregular
11: Compact irregular, extragalactic H II region
15: Peculiar, unclassifiable
16: Irr II
20: S..., Sc-Irr, unclassified spiral
Note (3): Bar types:
A: A, unbarred
X: X, AB, mixed type
B: B, barred.
Note (4): Peculiarities:
P: Peculiar
S: No inner ring
R: Ringed (outer)
U: Unclassifiable
T: Pseudo inner ring
D: Double or multiple
Note (5): Luminosity Classes (for Spirals and Irregulars)
1: I
2: I-II
3: II
4: II-III
5: III
6: III-IV
7: IV
8: IV-V
9: V
Note (6): This column includes comments, notes, and references to other
catalogs, and starts by an asterisk (*) for misclassified galaxies
originally listed in table 4.
Discrepant velocities are listed here along with the reference to
their source. These entries look like "nnnn mm (xxx)", where nnnn is
the velocity, mm is the quoted error (if any) and xxx is the source of
the discrepant velocity. Additional notes are in notes.dat file.
Other object designations include
HCG = Hickson compact group,
MK = Markarian,
KDG = Karachentsev double galaxy,
VV = Vorontosov-Velyaminov interacting galaxy,
AK = Arakelian high surface brightness galaxy,
Zw = Zwicky compact or peculiar galaxy,
EMSS = Einstein Medium Sensitivity Survey,
Kaz = Kazarian galaxy, etc.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Ref Reference code in cfa2s.dat
5- 23 A19 --- BibCode BibCode
25- 52 A28 --- Aut Author's names
54-133 A80 --- Com Comments
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name Galaxy name
13- 63 A51 --- OtherNames Alternate Names and remarks
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Table 4 : CFA survey: non galaxies
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Name RA (1950) DE mZW UGC Notes
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20372+2704A 20:37:18.1 27:04:28 10.5 11608 IV Zw 64 South, star
20372+2704B 20:37:18.6 27:04:42 10.5 11609 IV Zw 64 North, star
20393+0525 20:39:21.1 05:24:53 15.0 G star + fuzz
21256+0823 21:25:38.3 08:24:27 15.5 G star+ reflection neb?
21296+3418 21:29:36.1 34:18:28 13.8 11761 IV Zw 71, A star
21298+2955 21:29:46.1 29:55:15 13.0 11762 IV Zw 72, extremely compact,
A-F star
21478+3443 21:47:51.2 34:42:50 14.0 11823 IV Zw 78, K star
22341+7523 22:34:06.0 75:23:00 14.7 12105 Misidentified in UGC,
coords 1 hr off
23061+4638 23:06:06.0 46:38:12 13.8 12389 F stars + reflection neb?
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Byte-by-byte Description of file: clusters.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Cluster name
16- 17 I2 h RAh Right ascension (1950)
19- 22 F4.1 min RAm Right ascension (1950)
24 A1 --- DE- Declination sign (1950)
25- 26 I2 deg DEd Declination (1950)
28- 29 I2 arcmin DEm Declination (1950)
31 I1 --- R ? Cluster Richness class (from Cat. VII/110)
33 I1 --- D ? Distance class (from Cat. VII/110)
35- 40 F6.4 --- z Redshift
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History: From ApJS electronic version
* 20-Apr-2010: IC 2019 counterpart is UGC 2930 instead of UGC 2936.
(End) James Marcout, Patricia Bauer [CDS] 14-Sep-1999