J/other/PASAu/10.310 Parkes-Tidbinbilla radio sources (Duncan+ 1993)
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A survey of 526 southern flat-spectrum radio sources
with the Parkes-Tidbinbilla interferometer
Duncan R.A., White G.L., Wark R., Reynolds J.E., Jauncey D.L.,
Norris R.P., Taaffe L., Savage A.
=1993PASAu..10..310D (SIMBAD/NED BibCode)
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ADC_Keywords: Radio sources
Abstract:
We have measured the 2.3GHz total and correlated flux densities on a baseline of 275km of all sources in the Parkes catalogue which : (i) are south of declination +10deg, (ii) have a catalogued 2.7GHz total flux density exceeding 0.5Jy, and (iii) have a 2.7/5.0GHz spectral index flatter than -0.5. More than 14% of the sample showed visibility amplitudes greater than 0.9, and more than 72% showed visibility amplitudes greater than 0.5. Of the sources with optical or other identifications 79% were quasars. In this paper we briefly summarise the results of this survey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 50 526 Optical attributes and total and correlated
flux densities of 526 sources
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See also:
VIII/15 : Parkes Radio Sources Catalogue (PKSCAT90) (Wright+ 1990)
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Source name (B1950)
10- 12 A3 --- ID Optical identification (1)
14- 17 F4.1 mag mag ? Optical magnitude
20- 24 F5.3 --- z ? Redshift
26- 27 I2 --- o_S2.7GHzc Number of independent observations of S2.7GHzc
29- 34 F6.3 Jy S2.7GHz ? Total flux density at 2.7GHz
37- 42 F6.3 Jy S2.7GHzc ? Correlated flux density at 2.7GHz
45- 50 F6.3 --- Vis ? Visibility (ratio of correlated to total
flux densities)
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Note (1): Q: Quasar
G: Galaxy
EF: Empty field
Lac: BL Lac object
PN: Planetary nebula
HII: H II region
SNR: Supernova remnant
?: Optically crowded or obscured field
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Table 2: 2x2 contingency table of quasar visibility versus redshift
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redshift
Visibility <1.5 >=1.5
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>=0.5 123 78
<0.5 39 3
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Table 3: 2x2 contingency table of quasar visibility versus spectral index
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spectral index
Visibility <0 >=0
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>=0.5 142 135
<0.5 51 8
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History: Prepared via OCR at CDS.
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(End) James Marcout, Patricia Bauer [CDS] 22-May-1997