The target of project is to study the radio continuum properties of 202 Ultra-Luminous and Luminous Infrared Galaxy systems (U-LIRGs) in the local Universe (z < 0.088), in collaboration with the GOALS team.

The project is devided in 3 sections:

  • Identify the presence of an AGN in the radio Vardoulaki et al. (2015)

    In this paper we use the radio continuum maps at 1.49 and at 8.44 GHz from Condon et al. (1990; 1991) to produce radio-spectral-index-maps (a-maps) and study the variations in the radio spectral index spatially, in order to identify the presence of an Active Galactic Nucleus (AGN) in the centre of these (U)LIRGs. The a-maps, as well as NICMOS images for each object, can be found here. We also compare to mid-infrared AGN diagnostics. The a-maps and a pdf of the 1st paper of the project can be found here.

  • Explore the spatial mid-IR/radio relation and extend the study to the far-IR, and expand the study to high redshifts

    (in preparation)

  • Study the spatial variation in the infrared and radio and explore the dependence of radio emission on different nuclear types and stages of interaction

    (in preparation)

  • The research project is implemented within the framework of the Action ''Supporting Postdoctoral Researchers'' of the Operational Program ''Education and Lifelong Learning'' (Action's Beneficiary: General Secretariat for Research and Technology), and is co-financed by the European Social Fund (ESF) and the Greek State.

    Contact Details


    Argelander-Institut für Astronomie

    University of Bonn

    Auf dem Hügel 71, 53121

    Bonn, Germany

    Tel: +4917663459424, Fax: +490228731775