Multi-frequency study of the B3-VLA sample ^*

II. The database

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

Send offprint request to: M. Vigotti

Received: 29 June 1999
Accepted: 19 July 1999

Abstract

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.