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Astron. Astrophys. Suppl. Ser. 139, 359-376

Multi-frequency study of the B3-VLA sample[*]

II. The database

M. Vigotti1 - L. Gregorini1,2 - U. Klein3 - K.-H. Mack1,3

Send offprint request: M. Vigotti (

1 - Istituto di Radioastronomia del CNR, Via Gobetti 101, I-40129 Bologna, Italy
2 - Dipartimento di Fisica, Università di Bologna, Via Irnerio 46, I-40126 Bologna, Italy
3 - Radioastronomisches Institut der Universität Bonn, Auf dem Hügel 71, D-53121 Bonn, Germany

Received June 29; accepted July 19, 1999


We present total flux densities of 1049 radio sources in the frequency range from 151 MHz to 10.6 GHz. These sources belong to the B3-VLA sample, which is complete down to 100 mJy at 408 MHz. The data constitute a homogeneous spectral database for a large sample of radio sources, 50 times fainter than the 3C catalogue, and will be used to perform a spectral ageing analysis, which is one of the critical points in understanding the physics and evolution of extragalactic radio sources.

Key words: surveys -- radio continuum: general

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