In this paper we present an overview of the MAGNA (Multiple AGN Activity) project aiming at a comprehensive study of multiple supemassive black hole systems. With the main goal to characterize the sources in merging systems at different stages of evolution, we selected a sample of objects optically classified as multiple systems on the basis of emission line diagnostics and started a massive multiband observational campaign. Here we report on the discovery of the exceptionally high AGN density compact group SDSS~J0959+1259. A multiband study suggests that strong interactions are taking place among its galaxies through tidal forces, therefore this system represents a case study for physical mechanisms that trigger nuclear activity and star formation. We also present a preliminary analysis of the multiple AGN system SDSS~J1038+3921.}
@article{arxiv.1611.00554,
title = {Unveiling multiple AGN activity in galaxy mergers},
author = {A. De Rosa and S. Bianchi and T. Bogdanovic and R. Decarli and J. Heidt and R. Herrero-Illana and B. Husemann and S. Komossa and E. Kun and N. Loiseau and M. Guainazzi and Z. Paragi and M. Perez-Torres and E. Piconcelli and K. Schawinski and C. Vignali},
journal= {arXiv preprint arXiv:1611.00554},
year = {2017}
}
Comments
Proceedings paper for "XMM-Newton: The Next Decade" (held in 2016 May); accepted to be published in Astronomische Nachrichten / Astronomical Notes (AN)