[O-06] Poster presentations by senior high school students

[O06-P45] Stars are not forever ~mystery of supernova explosion~

*Mahiro Sato¹, *Ayuka Inakawa¹, *Chihiro Seki¹ (1. Ibaraki Prefectural Hitachi Daiichi High School)

Keywords:Supernova Explosion, plasma, solar wind

When stars more than three times the mass of the sun disappear, they explode into supernovae. We studied Betelgeuse to find whether the explosion have any effect on the Earth. It was found that there is a proportional relationship between the density of stars and the velocity of the explosion. From this study, We considered the possible effects on the Earth caused by the plasma ejected from Betelgeuse due to the explosion, and the scale of those effects. By clarifying the impact in this study, we can understand the cause of the malfunction of communication equipment on Earth. As a result, the detonation speed of Betelgeuse's stellar wind was calculated based on the speed of the solar flare, and it turned out to be slower than the solar flare. However, it was not possible to clarify the relationship between the magnetic flux and magnetic flux density around the Earth and the explosion when the stellar wind affects the Earth. This is less than the effect of an explosion in the sun. It is also thought to have an effect on machines and systems that use the Earth's magnetosphere, such as GPS and satellites.