NASA's X-ray astronomy satellite Chandra has discovered a new type of astronomical explosion that produces a violent flash of X-rays.Kenichi Nomoto, a specially appointed professor of the Kavli Institute for the Physics and Mathematics of the Universe, and Alexey Tolstov, a specially appointed researcher, are participating in this research.
This X-ray source is located in a relatively clear observation area called Chandra Deep Field-South (CDF-S), which is 2014 times after several hours after the radiation was observed on October 10, 1. It became brighter and became less sensitive in about a day.According to existing observations from the Hubble Space Telescope and the Spitzer Telescope, the astronomical explosion occurred in a small galaxy 1000 billion light-years away, releasing thousands of times more energy than all the stars in that galaxy.
The Chandra satellite is a satellite launched to observe X-rays emitted by high-energy celestial bodies that are absorbed by the atmosphere, and has made great strides in X-ray astronomy.Achievements include star explosions, neutron stars, and observations of X-rays emitted from black holes.As an explanation of this phenomenon, the union of neutron stars and black holes and the gamma-ray bursts of explosions caused by the union of neutron stars are being investigated, but they do not match the current observation data and are similar phenomena. Has not been found.
Further discovery of similar phenomena is required for elucidation, but if an event occurs near the earth, it may be possible to detect not only X-ray radiation but also gravitational waves, and physical progress toward neutron stars and black holes. Is expected.
Paper Information: [Monthly Notices of the Royal Astronomical Society] A New, Faint Population of X-ray Tansients
