Statistical properties of radio sources



The aim of the project is to study the statistical properties, numbers, and luminosity functions of radio sources observed with the Planck satellite. The positions of the sources must be determined with sufficient accuracy. Special techniques are being developed for counting sources too weak to be detected individually. The luminosity function defines the number of sources that are of certain brightness, and is important in studying the properties of sources and the physical processes they exhibit.

In addition we can study the clustering properties of radio sources, and their variability at several timescales, as well as the effect of gravitation lensing on source counts (to find out more, go to The astrophysics of quasars and BL Lac objects science programme).

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