How does the presence of an AGN in uence the total SFR estimates of galaxies and change their distribution with respect to the Galaxy Main Sequence? To contribute to solving this question, we study a sample of 1133 sources detected in the North Ecliptic Pole field (NEP) by AKARI and Herschel. We create a multi-wavelength dataset for these galaxies and we fit their multi-wavelength Spectral Energy Distribution (SED) using the whole spectral regime (from 0.1 to 500 μm). We perform the fit using three procedures: LePhare and two optimised codes for identifying AGN tracers from the SED analysis. In this work we present an overview of the comparison between the estimates of the Infrared bolometric luminosi- ties (between 8 and 1000 μm) and the AGN fractions obtained exploiting these dierent procedures. In particular, by estimating the AGN contribution in four different wavelength ranges (5-40 μm, 10-20 μm, 20-40 μm and 8-1000 μm) we show how the presence of an AGN affects the PAH emission by suppressing the ratio L8 μm L4:5 μm as a function of the considered wavelength range.

ABSTRACT
1. INTRODUCTION
2. THE SAMPLE SELECTION
3. THE SED FITTING PROCEDURES
4. RESULTS
5. SUMMARY & FUTURE PERSPECTIVES
REFERENCES

• L. Marchetti(Department of Physical Sciences, The Open University)
• A. Feltre(Institute d'Astrophysique de Paris)
• S. Berta(Max-Planck-Institut fur extraterrestrische Physik (MPE))
• I. Baronchelli(Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova)
• S. Serjeant(Department of Physical Sciences, The Open University)
• M. Vaccari(Astrophysics Group, Physics Department, University of the Western Cape)
• D. Bulgarella(Aix-Marseille Universite, CNRS, LAM (Laboratoire d'Astrophysique de Marseille))
• M. Karouzos(Department of Physics and Astronomy, Seoul National University)
• K. Murata(Department of Space and Astronautical Science/Institute of Space and Astronautical Science, JAXA)
• C. Pearson(RAL Space, Rutherford Appleton Laboratory/Department of Physical Sciences, The Open University)
• G. Rodighiero(Dipartimento di Fisica e Astronomia, Universita degli Studi di Padova)
• C. Segdwick(Department of Physical Sciences, The Open University)
• G.J. White(Department of Physical Sciences, The Open University/RAL Space, Rutherford Appleton Laboratory)