The Herschel Space Observatory view of dust in M81

Bendo, G J, Wilson, C D, Pohlen, M, Sauvage, M, Oliver, S and et al, (2010) The Herschel Space Observatory view of dust in M81. Astronomy and Astrophysics, 518 (-). ISSN 0004-6361

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We use Herschel Space Observatory data to place observational constraints on the peak and Rayleigh-Jeans slope of dust emission observed at 70-500 mu m in the nearby spiral galaxy M81. We find that the ratios of wave bands between 160 and 500 mu m are primarily dependent on radius but that the ratio of 70 to 160 mu m emission shows no clear dependence on surface brightness or radius. These results along with analyses of the spectral energy distributions imply that the 160-500 mu m emission traces 15-30 K dust heated by evolved stars in the bulge and disc whereas the 70 mu m emission includes dust heated by the active galactic nucleus and young stars in star forming regions

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Seb Oliver
Date Deposited: 06 Feb 2012 19:14
Last Modified: 07 Jun 2012 10:26
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