J/AJ/130/47 Velocities of Cygnus A galaxies (Ledlow+, 2005)
The cluster of galaxies surrounding Cygnus A.
II. New velocities and a dynamic model.
Ledlow M.J., Owen F.N., Miller N.A.
<Astron. J., 130, 47-54 (2005)>
=2005AJ....130...47L 2005AJ....130...47L
ADC_Keywords: Clusters, galaxy ; Photometry ; Radial velocities
Keywords: active - galaxies: clusters: individual (Cygnus A) -
galaxies: distances and redshifts - galaxies: individual (Cygnus A)
Abstract:
We have spectroscopically identified 77 new members of the Cygnus A
cluster, bringing to 118 the total number of galaxies consistent with
cluster membership.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 48 118 Galaxy velocities and absolute magnitudes
table2.dat 28 362 Missed galaxies
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Type Observation type (1)
7- 8 I2 h RAh Hour of Right Ascension (J2000)
10- 11 I2 min RAm Minute of Right Ascension (J2000)
13- 17 F5.2 s RAs Second of Right Ascension (J2000)
18 A1 --- DE- Sign of the Declination (J2000)
19- 20 I2 deg DEd Degree of Declination (J2000)
22- 23 I2 arcmin DEm Arcminute of Declination (J2000)
25- 28 F4.1 arcsec DEs Arcsecond of Declination (J2000)
30- 35 I6 km/s HV Heliocentric velocity
37 A1 --- f_HV [ab] Flag on HV (2)
39- 41 I3 km/s e_HV Uncertainty in HV
43- 47 F5.1 mag RMAG Absolute Gunn-Oke R band aperture magnitude
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Note (1): Observation type, defined as follows:
Reobs = Reobserved galaxies from Paper 1 (1997ApJ...488L..15O 1997ApJ...488L..15O);
New = New non-cluster velocities. Magnitudes for non-cluster galaxies are
apparent magnitudes calculated for a 5" diameter aperture, and are
not corrected for Galactic extinction.
Note (2): Flag on HV, defined as follows:
a = Emission-line redshift;
b = The velocity for this galaxy was incorrect in Paper 1
(1997ApJ...488L..15O 1997ApJ...488L..15O).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 11 F5.2 s RAs Second of Right Ascension (J2000)
12 A1 --- DE- Sign of the Declination (J2000)
13- 14 I2 deg DEd Degree of Declination (J2000)
16- 17 I2 arcmin DEm Arcminute of Declination (J2000)
19- 22 F4.1 arcsec DEs Arcsecond of Declination (J2000)
24- 27 F4.1 arcsec Rmag The 5" aperture R band magnitude
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History:
From electronic version of the journal
References:
Owen et al., Paper 1 1997ApJ...488L..15O 1997ApJ...488L..15O
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 19-Oct-2005