New results on the parsec-scale properties of the Bologna Complete Sample

TL;DR

This paper updates the parsec-scale properties of the Bologna Complete Sample of radio sources, revealing a higher fraction of two-sided sources and providing detailed analysis of two peculiar objects.

Contribution

It provides new parsec-scale images for 76 sources and compares the properties with previous surveys, highlighting differences in source structures.

Findings

Higher fraction of two-sided sources compared to previous surveys

Parsec-scale images now available for 76 sources

Detailed analysis of sources 3C 293 and 3C 310

Abstract

We present an update of the parsec scale properties of the Bologna Complete Sample consisting of 95 radio sources with z $<$ 0.1 from the B2 Catalog of Radio Sources and the Third Cambridge Revised Catalog (3CR). Thanks to new data obtained in phase reference mode, we have now parsec scale images for 76 sources of the sample. Most of them show a one-sided jet structure but we find a higher fraction of two-sided sources in comparison with previous flux-limited VLBI surveys. Results for two peculiar sources, 3C 293 and 3C 310, are presented and discussed in more detail.