A research group led by Masayuki Yamanaka, a researcher at the Konan University Faculty of Science and Technology, emits extremely strong infrared rays that are not normally seen from supernovae that exceed the limit, and this infrared radiation is the radiation of celestial bodies before the explosion. I found out that it was derived from.
According to the National Astronomical Observatory of Japan, Konan University, "Ia-type supernovae" that shine with brightness comparable to galaxies have been used to accurately measure the distance of distant galaxies, but the origin is two stars. I didn't know except that it was in a matching star system.
It was thought that if the two stars were a white dwarf and a normal star, the white dwarf would undergo material accretion, reaching its critical mass and exploding.However, a supernova that exceeded the limit, which could only be explained by the explosion of a white dwarf that exceeded the limit mass, was discovered and could not be explained by the accretion theory.
As a result of thorough observation of supernovae beyond the limit of "SN2012dn" with 11 telescopes such as Hokkaido University, Kyoto University, and National Astronomical Observatory of Japan, the research group captured extremely strong infrared radiation that is not normally seen.A detailed analysis of these revealed that the distance from the supernova to the emission was about 0.2 light-years, derived from the radiation from the celestial body before the infrared radiation exploded.The research group argues that the capture of emissions from the celestial body of origin is a result of supporting the accretion theory.
