J/ApJS/124/285 VLA Images of Extragalactic Objects (Reid+, 1999)
VLA Images at 5 GHz of 212 Southern Extragalactic Objects
Reid R. I., Kronberg P. P., Perley R. A.
<Astrophys. J. Suppl. Ser. 124, 285 (1999)>
=1999ApJS..124..285R 1999ApJS..124..285R
ADC_Keywords: Galaxies, radio; Polarization; QSOs; Radio sources
Keywords: galaxies: structure - polarization - quasars:
general - radio continuum: galaxies
Abstract:
Maps of 212 extragalactic radio sources at 4.9 GHz are shown in Stokes
I along with linear polarization vectors. The objects have a
declination range of 0 degrees to -35 degrees and were chosen from the
Hewitt & Burbidge quasar catalog with a spectral index less than -0.5
and the NVSS survey with a minimum 1.4 GHz flux density greater than
300 mJy. The observations were made with the Very Large Array in its B
configuration, and the images have a typical resolution of 2
arcseconds. One hundred ninety-five objects were resolved; 108 of the
sources are quasars, and another 51 have been identified as galaxies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 110 211 Extragalactic objects parameters
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See also:
VII/158 : Revised and Updated Catalog of Quasi-stellar Objects (Hewitt+ 1993)
J/AJ/115/1693 : NRAO VLA Sky Survey (NVSS) (Condon+, 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Name Catalog name (1)
7- 8 I2 h RAh Right Ascension (J2000)
10- 11 I2 min RAm Right Ascension (J2000)
13- 17 F5.2 s RAs Right Ascension (J2000)
20 A1 --- DE- Sign of declination
21- 22 I2 deg DEd Declination (J2000)
24- 25 I2 arcmin DEm Declination (J2000)
27- 30 F4.1 arcsec DEs Declination (J2000)
33- 35 I3 arcsec Size Largest angular size at 4.8GHz
37 A1 --- n_z Limit value on redshift
38- 44 F7.5 --- z ? Redshifts from NED or HB89
46 A1 --- ID Optical identifications (2)
48- 54 A7 --- Morph 4.8GHz morphology (3)
56- 62 F7.4 Jy Tflux ? Total flux at 4.8GHz
65- 71 F7.4 Jy Cflux ? Core flux at 4.8GHz
74- 79 F6.3 --- Sp+Index ? Spectral index (νalpha)
81 A1 --- n_Sp+Index [abc] Source of the spectral index (4)
83-117 A35 --- com Brief comments (5)
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Note (1): The catalog the objects was selected from. HB89 stands for
Hewitt & Burbidge (1989ApJS..69..1H) quasar catalog and HB93 means
that Hewitt & Burbidge did not include the quasar in their catalog
until 1993 (Hewitt & Burbidge 1993ApJS..87..451H). NVSS denotes
the Northern VLA Sky Survey (Condon+ 1998AJ..115..1693C).
Note (2):
Q = quasar
G = galaxy
E = elliptical
RG = radio galaxy
A = AGN
U = unidentified
Note (3):
P = unresolved
B = barely resolved
L = lobe
C = core
J = jet
Note (4):
a = from NED
b = from this survey (4.8 GHz) and the NVSS (1.4 GHz)
c = from HB93 (1993ApJS..87..451H)
Note (5): A denotes an Abell cluster. References and catalog
abbreviations use the same convention as NED, except for QCC, which
signifies that the quasar identification came from Quiniento et al.
(1988A&AS...76...21Q 1988A&AS...76...21Q). Asterisks indicate that a longer comment may be
found in section 5 of the paper.
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History:
From ApJ Electronic edition
(End) Greg Schwarz (AAS) 27-Jan-2000