Abstract
view Abstract Citations (12) References (20) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Faint Radio Sources and Gravitational Lensing Langston, Glen I. ; Conner, Samuel R. ; Heflin, Michael B. ; Lehar, Joseph ; Burke, Bernard F. Abstract Measurements of the surface density of radio sources are summarized for a deep VLA integration at 5 GHz and the MIT-Green Bank (MG) II 5 GHz survey. The faint source counts are combined with previous observations and fitted to a power-law function of surface density versus limiting flux density [n_2_(>S_min_) = kSsigma^_min_]. The surface density of radio sources brighter than 1 mJy is k = 0.019 +/- 0.004 per arcmin^2^. The power-law exponent is best fit by -0.93 +/- 0.14. Between 15-100 mJy the surface density of radio sources varies nearly as predicted by Euclidian models of the universe. Estimates are given for the number of chance alignments of radio sources in the VLA snapshot observations of the MIT-Princeton-Caltech gravitational lens search. The probability of lens candidate configurations occurring by chance alignment are calculated. Publication: The Astrophysical Journal Pub Date: April 1990 DOI: 10.1086/168586 Bibcode: 1990ApJ...353...34L Keywords: Faint Objects; Gravitational Lenses; Radio Sources (Astronomy); Density Distribution; Radio Emission; Very Large Array (Vla); Astrophysics; COSMOLOGY; GRAVITATIONAL LENSES; RADIO SOURCES: GENERAL full text sources ADS | data products NED (6) SIMBAD (5)
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