J/AJ/87/1429 Active extragalactic objects II. (Condon+ 1982)
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.
<Astron. J. 87, 1429 (1982)>
=1982AJ.....87.1429C 1982AJ.....87.1429C (SIMBAD/NED BibCode)
ADC_Keywords: Radio sources
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.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 69 71 List of radio sources
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See also:
J/AJ/87/739 : Active Extragalactic Objects I. (Condon+ 1982)
J/AJ/90/1437 : Active Extragalactic Objects III (Coleman+ 1985)
Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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1- 3 A3 --- Name Source name
5- 6 I2 h RAh Right Ascension 1950 (hours)
7- 8 I2 min RAm Right Ascension 1950 (minutes)
9- 13 F5.2 s RAs Right Ascension 1950 (seconds)
15- 17 F3.2 s e_RAs Mean error on RAs
19 A1 --- DE- Declination 1950 (sign)
20- 21 I2 deg DEd Declination 1950 (degrees)
22- 23 I2 arcmin DEm Declination 1950 (minutes)
24- 27 F4.1 arcsec DEs Declination 1950 (seconds)
29- 31 F3.1 arcsec e_DEs Mean error on DEs
33- 38 F6.2 mJy S1452 Integrated Flux Density
41- 44 F4.2 mJy e_S1452 Mean error on S1452
46- 47 I2 arcsec MajAxis ? Half-intensity major axis
49- 50 I2 arcsec MinAxis ? Half-intensity minor axis
52- 54 I3 deg PA ? MajAxis position angle
56- 59 F4.2 --- f Integrated attenuation factor
61- 64 F4.2 --- fp Peak attenuation factor
66- 69 F4.2 mJy mapSp Map Peak flux density
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History:
scanned by H.Andernach in September 1995 (catalog numbered
R222 in his archive)
(End) Heinz Andernach [IUE Vilspa], Francois Ochsenbein [CDS] 13-Feb-1997