Abstract
Dipartimento di Astronomia, Universita di Bologna Via Ranzani 1, 40127 Bologna, ItalyE-mail:liuzzo@ira.inaf.it, ggiovannin@ira.inaf.it,giroletti@ira.inaf.itWe present here our results on a complete sample of Brightest Cluster Galaxies (BCGs) in nearbyAbell Clusters (distance class <3). Combined with data from the literature, we provide parsecscale information for 34 BCGs. We found that also radio loud BCGs have core structures verycomplex (e.g. 4C 26.42 in Abell 1795). Moreover, we noted a possible dichotomy betweenBCGs in cool-core clusters and those in non-cool-core clusters. Among resolved sources, thosein cool-core clusters tend to have two-sided parsec scale jets, while those in less relaxed clustershave predominantly one-sided parsec scale jets. We suggestthat this difference is caused by theinterplay between the jets and the surrounding medium. Evidence of recurrent activity is alsofound in BCGs in cool-core clusters. For two peculiar cases of BCGs (IC 712 in Abell 1314 andNGC 6047 in Abell 2151) we asked and obtained new VLBA observations a 1.6 GHz. We discussthem here for the first time.10th European VLBI Network Symposium and EVN Users Meeting: VLBI and the new generation of radioarraysSeptember 20-24, 2010Manchester Uk
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