The optical and radio properties of quasars detected in a sensitive 1411 MHz radio survey

Astronomy and Astrophysics – Astronomy

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Optical Properties, Quasars, Radio Astronomy, Color, Magnitude, Variability

Scientific paper

A phenomenological study of the optical and radio properties of quasars is presented based on observations carried out with the VLA at 1411 MHz over a Selected Area (SA) of 5 x 5 square degrees of sky. The observation identified 17 VLA quasar candidates with flux densities of between 20 and 300 mJy. Normalized differential radio number counts are constructed using a sample of 37 VLA quasars with flux densities of between 4 and 300 mJy. Some of the optical properties of the sample of quasars are discussed, including magnitude variability and color classification. A self-consistent theoretical model of VLA quasars is described on the basis of the observational data.

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