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The Herschel Space Observatory view of dust in M81
journal contribution
posted on 2023-06-07, 22:18 authored by G J Bendo, C D Wilson, M Pohlen, M Sauvage, Seb OliverSeb Oliver, et alWe 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
History
Publication status
- Published
Journal
Astronomy and AstrophysicsISSN
0004-6361External DOI
Issue
-Volume
518Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes