Published in
EDP Sciences, Astronomy & Astrophysics, (518), p. L65, 2010
DOI: 10.1051/0004-6361/201014568
Links
- ORCID
- EDP Sciences
- ORCID
- [hdl.handle.net] | PDF
- [biblio.ugent.be] | PDF
- [orca.cf.ac.uk] | PDF
- [authors.library.caltech.edu] | PDF
- [arxiv.org] | PDF
- [www.researchgate.net] | PDF
- [arxiv.org] | PDF
- [biblio.ugent.be] | PDF
Tools
TheHerschelSpace Observatory view of dust in M81
,
M. J. Barlow,
J. J. Bock,
A. Boselli,
M. Bradford,
V. Buat,
N. Castro-Rodriguez,
P. Chanial,
S. Charlot,
L. Ciesla
and other authors.
Full text: Download
Abstract
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.