Thursday, May 9, 2013

1305.1647 (M. S. Clemens et al.)

Dust and star-formation properties of a complete sample of local galaxies drawn from the Planck Early Release Compact Source Catalogue    [PDF]

M. S. Clemens, M. Negrello, G. De Zotti, J. Gonzalez-Nuevo, L. Bonavera, G. Cosco, G. Guarese, L. Boaretto, P. Salucci, C. Baccigalupi, D. L. Clements, L. Danese, A. Lapi, N. Mandolesi, R. B. Partridge, F. Perrotta, S. Serjeant, D. Scott, L. Toffolatti
We combine Planck HFI data at 857, 545, 353 & 217GHz with data from WISE, Spitzer, IRAS & Herschel to investigate the properties of a flux limited sample of local star-forming galaxies. A 545GHz flux density limit was chosen so that the sample is 80% complete at this frequency, giving a sample of 234 local galaxies. We investigate the dust emission and star formation properties of the sample via various models & calculate the local dust mass function. Although 1-component modified black bodies fit the dust emission longward of 80um very well (median beta=1.83) the degeneracy between dust temp & beta also means that the SEDs are very well described by a dust emissivity index fixed at beta=2 and 10View original:

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