VLBI observations of Brightest Cluster Galaxies: are cooling and parsec scale morphology correlated?

Details VLBI observations of Brightest Cluster Galaxies: are cooling and parsec scale morphology correlated? VLBI observations of Brightest Cluster Galaxies: are cooling and parsec scale morphology correlated?

2009-10-27

arxiv.org/abs/0910.5104v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 2 figures, To appear in Proceedings of Science: "The Monsters Fiery Breath: Feedback in galaxies, groups, and cluster

Scientific paper

We present a statistical study on parsec scale properties of a sample of Brigthest Cluster Galaxies (BCGs) in Abell Clusters. These data show a possible difference between BCGs in cool core clusters (two-sided parsec scale jets) and in non cool core clusters (one-sided parsec scale jet). We suggest that the two-sided morphology in cool core clusters could be due to the presence of mildly relativistic jets slowed down already at mas scale as consequence of the jet interaction with a dense surrounding medium.

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