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1982AJ.....87..739C

Complete samples of active extragalactic objects. I. A 1411-MHz VLA survey centered on alpha= 12h04min, delta= +11deg30min

Condon J.J., Condon M.A., Hazard C.

Abstract:

As one part of a program to detect complete samples of active extragalactic objects, the 3.36x10^-3 sr field centered on alpha=12h04min, delta=+11deg30' (1950.0) was mapped with the Very Large Array at 1411MHz. Sixty-seven maps cover this field so that no point is more than 15arcmin from the nearest map center. The median map noise is 0.6mJy, and the 6sigma completeness limit is less than 6mJy over half of the survey field. The synthesized point-source response is an elliptical Gaussian 22x18arcsec between half-intensity points. The rms source-position uncertainties are ~1arcsec in each coordinate so that reliable optical identifications can be made on the basis of radio-optical position coincidence alone. The sky density of sources with flux densities 5 < S < 150mJy and the angular-size distribution of sources between 30 and 150mJy were determined.
1982AJ.....87.1429C

Complete samples of active extragalactic objects. II. A deep 1.452-GHz VLA survey centered on 08:52:15+17:16

Condon J.J., Mitchell K.J.

Abstract:

A single primary-beam area centered on alpha=08h52m16s, Delta=+17d16' (1950.0) was surveyed with the Very Large Array at 1.452 GHz. The rms map noise is 0.030 + 0.001 mJy, and the resulting source list is complete to a map peak flux density S_p = 0.2 mJy within 25 arcmin of the field center. Source counts between 0.2 and 5 mJy were determined. Our best-fit model for the counts suggests that the faintest sources have absolute radio luminosities L < 10^24 W/Hz and do not evolve significantly. Sources stronger than 0.2 mJy appear to account for most of the radio-source background. The rms sky-temperature fluctuation in the central 10'x10' of the map is less than 0.029 K (>99% confidence) on an angular scale ~19 arcsec. This limit constrains theories which attribute the cosmic microwave background to thermalized radiation from massive pregalactic stars or bursts of star formation in young galaxies.
1985AJ.....90.1437C

Complete samples of active extragalactic objects. III. A 1411 MHz VLA survey.

Coleman P.H., Condon J.J., Hazard C.

Abstract:

Three selected fields were observed with the Very Large Array (VLA) at 1411MHz as part of an ongoing project to compile complete samples of active extragalactic objects. The radio-source list for the field "A" centered on alpha=08h54m, delta=+17d30' is presented. 67 maps cover the area 3x3deg so that every point lies within at least one primary half-power beamwidth. The median map noise is 0.5mJy and the 6{sigma} completeness level is less than 6mJy over half the field. The synthesized point-source response is an elliptical Gaussian approximately 20x17" between half-intensity points. The areal density of sources with flux densities in the range 5 < S < 150mJy was determined. Optical identifications based on position coincidences with 90 objects brighter than B=~21.5 in the A and B survey fields are reported.