Bibcode
Boselli, A.; Ciesla, L.; 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.; Corbelli, E.; Cooray, A.; Cormier, 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.
Bibliographical reference
Astronomy and Astrophysics, Volume 518, id.L61
Advertised on:
7
2010
Journal
Citations
76
Refereed citations
71
Description
We present infrared colours (in the 25-500 μm spectral range) and UV
to radio continuum spectral energy distributions of a sample of 51
nearby galaxies observed with SPIRE on Herschel. The observed sample
includes all morphological classes, from quiescent ellipticals to active
starbursts. Active galaxies have warmer colour temperatures than normal
spirals. 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. In contrast to the colour
temperature of the warm dust, the f350/f500 index sensitive to the cold
dust decreases with star formation and increases with metallicity,
suggesting an overabundance of cold dust or an emissivity parameter
β < 2 in low metallicity, active systems.
Herschel is an ESA space observatory with science instruments provided
by Principal Investigator consortia. It is open for proposals for
observing time from the worldwide astronomical community.
Related projects
Formation and Evolution of Galaxies: Observations in Infrared and other Wavelengths
This IAC research group carries out several extragalactic projects in different spectral ranges, using space as well as ground-based telescopes, to study the cosmological evolution of galaxies and the origin of nuclear activity in active galaxies. The group is a member of the international consortium which built the SPIRE instrument for the
Ismael
Pérez Fournon