The Herschel Space Observatory view of dust in M81
The Herschel Space Observatory view of dust in M81
复制标题
赫歇尔太空天文台观测到的 M81 尘埃
DOI：
10.1051/0004-6361/201014568
复制
发表时间：
2010
影响因子：
6.5
通讯作者：
Bendo G
中科院分区：
文献类型：
--
作者：
Bendo G
We useHerschelSpace Observatory data to place observational constraints on the peak and Rayleigh-Jeans slope of dust emission observed at 70–500μm in the nearby spiral galaxy M81. We find that the ratios of wave bands between 160 and 500μm are primarily dependent on radius but that the ratio of 70 to 160μm emission shows no clear dependence on surface brightness or radius. These results along with analyses of the spectral energy distributions imply that the 160–500μm emission traces 15–30 K dust heated by evolved stars in the bulge and disc whereas the 70μm emission includes dust heated by the active galactic nucleus and young stars in star forming regions.
