Radio continuum properties of luminous infrared galaxies - Identifying the presence of an AGN in the radioE. Vardoulaki, V. Charmandaris, E. J. Murphy, T. Diaz-Santos, L. Armus, A. S. Evans, J. M. Mazzarella, G. C. Privon, S. Stierwalt and L. Barcos-MuñozA&A, 574 (2015) A4DOI: https://doi.org/10.1051/0004-6361/201424125