Ute Lisenfeld (Granada) : The dust SED in the dwarf galaxies: The case of NGC 4214

I will present the analysis and modeling of the dust heating and emission of the nearby, starbursting dwarf galaxy NGC 4214. Due to its proximity and the great wealth of data available from the UV to the mm-range (from Galex, Hubble, Spitzer, Herschel, Planck and IRAM) a detailed modeling of the dust heating and emission is possible. A key point of our modeling is that we distinguish the emission from HII region and their associated PDRs and the emission from diffuse dust. For both components we apply templates from the literature (Groves et al. 2005 for the emission of HII+PDR region, and the library of Popescu et al. 2011 describing the diffuse emission in galaxy disks) derived with a detailed modelling based on a realistic geometry and including radiation transfer. Due to the wealth of data available for NGC 4214, very few free parameters are present in the problem. We find that we can fit the dust emission of NGC 4214 to a large extent (but not perfectly) with these models. I will present the results, identify the agreements and discrepancies between data and model and discuss the conclusions.