Author:
Nersesian A.,Adam R.,Ade P.,Ajeddig H.,André P.,Artis E.,Aussel H.,Baes M.,Beelen A.,Benoît A.,Berta S.,Bing L.,Bourrion O.,Calvo M.,Catalano A.,De Petris M.,Désert F.-X.,Doyle S.,Driessen E.F.C.,Ejlali G.,Gomez A.,Goupy J.,Hanser C.,Katsioli S.,Kéruzoré F.,Kramer C.,Ladjelate B.,Lagache G.,Leclercq S.,Lestrade J.-F.,Macías-Pérez J. F.,Madden S.C.,Maury A.,Mauskopf P.,Mayet F.,Monfardini A.,Moyer-Anin A.,Muñoz-Echeverría M.,Pantoni L.,Perotto L.,Pisano G.,Ponthieu N.,Revéret V.,Rigby A.J.,Ritacco A.,Romero C.,Roussel H.,Ruppin F.,Schuster K.,Sievers A.,Tucker C.,Xilouris E.M.,Zylka R.
Abstract
We present a morphological analysis of a set of spiral galaxies from the NIKA2 Guaranteed Time Large Program, IMEGIN. We have fitted a single Sérsic model on a set of broadband images, from ultra-violet (UV) to millimeter (mm) wavelengths, using the modelling code Statmorph. With the recently acquired NIKA2 1.15- and 2-mm observations, it is possible to extend such a morphological analysis to the mm regime and investigate the two-dimensional (2D) distribution (exponential, Gaussian) of the very cold dust (<15 K). We show preliminary results of the 2D large-scale distribution of stars and dust in spiral galaxies, how they relate to each other, and highlight how they differ from galaxy to galaxy.