Astronomers had theorized but never witnessed this remnant - stoking until last November, when Hiroya Yamaguchi of the Harvard - Smithsonian Center for Astrophysics discovered a bizarre signature in the remnant's X-rays:
Cool iron atoms clustered inside a ring of their fevered ferrous cousins.
The reverse shock wave will continue to superheat
the cool iron atoms, eventually reaching the remnant's core sometime in the next few hundred years.
Not exact matches
TOP: A typical two - element alloy consists of
iron atoms (red spheres) and boron
atoms (blue spheres), which naturally arrange themselves into a crystalline pattern upon
cooling.