[SAPOD]Today’s “Space Image”. We introduce characteristic images introduced by sorae in the past, attractive images released by space agencies of various countries, and images submitted by space astronomy fans and experts. (There is a link to the original article at the end of the article)
(Source: sorae portal site to the universe)
Source
- Image Credit: X-ray: NASA/CXC/RIKEN & GSFC/T. Sato et al; Optical: DSS
- sorae – Exploring the symmetry of the explosion from the supernova remnant of Tycho, which cannot be seen with light
This was introduced by sorae in an article on October 19, 2019.Tycho’s supernova remnant“is. This image is a composite of X-ray images taken by Chandra and a background taken in visible light.
The remains of Tycho’s supernova are located in the constellation Cassiopeia, about 13,000 light years away from Earth. A supernova remnant is a celestial object in which the surrounding gas is heated to high temperatures by the shock wave generated by a supernova explosion and appears to glow with light and X-rays.
The colors are based on X-ray observation data, so they do not actually appear in these colors. Blue and red represent the distribution of silicon (Si) scattered by supernova explosions, with blue showing silicon moving toward the Earth and red showing silicon moving away from the Earth. Other colors such as yellow, green, orange, and purple are colored according to the strength of energy, the difference in substance, and the direction of movement.
The remnants of Tycho’s supernova can be seen clearly when observed using X-rays, but they are almost impossible to see using light. When you look at a photograph of the starry sky before the X-ray images are combined, it is hard to believe that there is a supernova remnant there.
(Quoted from the original article)
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