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Article Dans Une Revue Physics Letters A Année : 1991

Is evolution of radio sources necessary?

Résumé

The null-correlation approach has been used to study the distribution of the 3CR sample of radio galaxies in the Hubble diagram, with the following results: This sample is about complete at flux density limit $S_{178} = 10$ Jy, a relatively small number of strong sources $S_{178}\gt 100$ Jy are missing (that correspond probably to local sources). The radio luminosity distribution function is given by a power law $\propto L^{\gamma(z)}$ with $\gamma(z) \approx 2$, which interprets the large scatter of the distribution in the Hubble diagram. Because of such a distribution in luminosity, this sample is not adapted for deriving the world model. The evolutionary effects are not substantial enough to be revealed within the range of observations.

Dates et versions

hal-01703381 , version 1 (07-02-2018)

Identifiants

Citer

G. Bigot, Stéphane Rauzy, R. Triay. Is evolution of radio sources necessary?. Physics Letters A, 1991, 158 (6-7), pp.282 - 290. ⟨10.1016/0375-9601(91)90982-E⟩. ⟨hal-01703381⟩
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