J/MNRAS/216/173 Bright extragalactic radio sources at 2.7 GHz (Wall+, 1985)
Bright extragalactic radio sources at 2.7 GHz- III. The all-sky catalogue.
Wall J.V., Peacock J.A.
<Mon. Not. R. Astron. Soc. 216, 173 (1985)>
=1985MNRAS.216..173W 1985MNRAS.216..173W
ADC_Keywords: Galaxies, radio ; QSOs ; Radio continuum ; Radio sources ;
BL Lac objects
Abstract:
The brightest extragalactic radio sources at 2.7 GHz are catalogued.
The complete sample comprises 233 sources found in the major
centimeter wavelength surveys carried out at ANRAO/Parkes,
NNRAO/Greenbank, and MPIfR/Bonn: the sample covers 9.81 sr and has
limits S(27) = 2.0 Jy and |b| > 10°. A critical reanalysis of the
data shows that 227 (97 percent) have optical identifications and 171
(73 percent) have measured redshifts. The implications of the
catalogue statistics for the luminosity functions of different
radio-source populations are considered.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
11cmasky.dat 88 233 All Sky Catalog of Extragal. Radio Srcs at 2.7 GHz
refs.dat 79 245 References
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Byte-by-byte Description of file: 11cmasky.dat
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Bytes Format Units Label Explanations
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2- 8 A7 --- IAUname Name of source in IAU convention (1)
10-17 A8 --- Name Other name of source (1)
19-20 I2 h RAh Right Ascension (B1950) (hour) (2)
22-23 I2 min RAm Right Ascension (B1950) (min)
25-28 F4.1 s RAs Right Ascension (B1950) (sec)
30 A1 --- DE- Declination sign (B1950) (2)
31-32 I2 deg DEd Declination (B1950) (deg)
34-35 I2 arcmin DEm Declination (B1950) (arcmin)
37-40 F4.1 arcsec DEs Declination (B1950) (arcsec)
42-45 F4.1 arcsec poserr Positional error of source (3)
47-52 F6.2 Jy S11cm Flux density at 11cm (2.7 GHz) (4)
54-58 F5.2 --- Sp-Index Spectral index of source between 2.7 & 5 GHz (5)
60-61 A2 --- Otype Optical identification type (6)
63-67 F5.2 mag Vmag ? V magnitude of source
69-72 F4.2 --- z Redshift of source (7)
74 A1 --- f_z [ *] Flag '*' if z is estimated (7)
76-88 A13 --- r_RAh Reference for position (8)
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Note (1): The 'IAUname' column gives the name of the source in IAU
convention. The 'Name' column gives an alternative name, if
available.
Note (2): These columns give the B1950 right ascension and declination of
the source. Positions are from the first reference listed in the
"r_RAh" column, and are optical positions with the following
exceptions: if the optical position was of low accuracy and the
source was compact, the radio position was used.
Note (3): This column gives the positional error. The quoted error is the
rms in one direction in arcsec.
Note (4): This column gives the flux density at 2.7 GHz, in Jy. The 2.7 GHz
flux-density scale was changed from that used by Kellermann et
al. (1969ApJ...157....1K 1969ApJ...157....1K) to the Parkes flux-density scale.
Note (5): This column gives the spectral index between 2.7 and 5 GHz, in
the sense of S ∝ ν-α.
Note (6): This column gives the optical classification of the source, as
follows:
Q QSO confirmed by spectrum or variability (and including BL Lac
objects).
Q? Stellar object on position.
G Galaxy confirmed by extended image.
G? Very faint object; presumed galaxy.
EF Empty field
Note (7): These columns give the redshift and redshift flag. The f_z
column is marked with an asterisk ('*') if the redshift is an
estimate.
Note (8): References to the given position are as follows: A '???' indicates
that the entries in that column are not complete. The author
intends to go back and fill in the missing info in the future.
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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 I3 --- code reference code
5- 79 A75 --- reftxt Bibcode (if any) and reference text
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History:
Prepared from the tables available at the "ADS Catalogue Service"
(CfA, Harvard-Smithsonian Center for Astrophysics, Cambrigde MA)
(End) Patricio Ortiz [CDS] 06-Apr-1999