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Provided by Nagoya University and JAXA.

Tycho's Supernova Remnant in X-ray, Infrared, and Radio Bands

This month, we introduce Tycho's supernova remnant observed in various wavelengths. The figure shows hot plasma (about ten millions K; in blue color by SUZAKU), warm dust (about 100 K; red by AKARI), and cold molecular gas (CO; green from the Canadian Galactic Survey). The supernova has developed the expanding hot plasma into shell-like shape and been creating dust in some parts of the shell. In particular, at the top left (north east) region, a lot of dusts are created by interaction between the hot plasma and the molecular gas. In contrast, at top right (north west), there are comparable amounts of dusts, but the molecular gas is hardly seen. How the dust in this region was created ? Please check the paper by Daisuke Ishihara at Nagoya university and colleagues in Astronomy and Astrophysics Letter in October 2010. If you like Tycho's supernova, please check DOM 2009-2 or DOM 2010-10 also.

Takayuki TAMURA (ISAS/JAXA)

Jan. 2011