SED fitting of nearby galaxies in the Herschel Reference Survey
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Author
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.
Zibetti, S.
Attention
2299/16672
Abstract
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.