SED fitting of nearby galaxies in the Herschel Reference Survey
Ciesla, L., Boselli, A., Buat, V., Cortese, L., Auld, R., Baes, M., Bendo, G.~J., Bianchi, S., Bock, J., Bomans, D.~J., Bradford, M., Castro-Rodriguez, N., Chanial, P., Charlot, S., Clemens, M., Clements, D., Corbell, E., Cooray, A., Cormie, D., Dariush, A., Davies, J., de Looze, I., di Serego Alighieri, S., Dwek, E., Eales, S., Elbaz, D., Fadda, D., Fritz, J., Galametz, M., Galliano, F., Garcia-Appadoo, D.~A., Gavazzi, G., Gear, W., Giovanardi, C., Glenn, J., Gomez, H., Griffin, M., Grossi, M., Hony, S., Hughes, T.~M., Hunt, L., Isaak, K., Jones, A., Levenson, L., Lu, N., Madden, S.~C., O'Halloran, B., Okumura, K., Oliver, S., Page, M., Panuzzo, P., Papageorgiou, A., Parkin, T., Perez-Fournon, I., Pierini, D., Pohlen, M., Rangwala, N., Rigby, E., Roussel, H., Rykala, A., Sabatini, S., Sacchi, N., Sauvage, M., Schulz, B., Schirm, M., Smith, M.~W.~L., Spinoglio, L., Stevens, J., Sundar, S., Symeonidis, M., Trichas, M., Vaccari, M., Verstappen, J., Vigroux, L., Vlahakis, C., Wilson, C., Wozniak, H., Wright, G., Xilouris, E.~M., Zeilinger, W. and Zibetti, S.
(2010)
SED fitting of nearby galaxies in the Herschel Reference Survey.
In:
SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics :.
Societe Francaise d'Astronomie et d'Astrophysique, FRA, pp. 31-35.
We compute UV to radio continuum spectral energy distributions of 51 nearby galaxies recently observed with SPIRE onboard Herschel and present infrared colours (in the 25-500 μm spectral range). SPIRE data of normal galaxies are well reproduced with a modified black body (β=2) of temperature T≅q 20 K. In ellipticals hosting a radio galaxy, the far-infrared (FIR) emission is dominated by the synchrotron nuclear emission. The colour temperature of the cold dust is higher in quiescent E-S0a than in star-forming systems probably because of the different nature of their dust heating sources (evolved stellar populations, X-ray, fast electrons) and dust grain properties.
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