人気と比例して多忙なスケジュールによる体調不良や、バンドの財政問題等の理由で「Helloween(ハロウィン)」を脱退したギタリスト「Kai Hansen(カイ・ハンセン)」が1989年に結成したバンド「Gamma Ray(ガンマ・レイ)」。今回、ご紹介するのは1990年にリリースした ...

Gamma rays emitted by the decays of radioactive nuclei testify to the production of isotopes through nuclear processes in astrophysical events. We collect measurements of the Galactic γ‐ray sky in ...

GECAM-C provided an accurate measurement of the low energy band spectrum of this GRB, while the Fermi/GBM covered the high energy band where the gamma-ray line showed up. In particular, this burst ...

Cosmic rays below 100 MeV are key to the origin of life and the evolution of stars, and they activate interstellar matter to emit spectral emission lines of X-rays and gamma rays specific to the ...

Caption The top panel shows the power-law evolution of the energy of gamma-ray line (blue) detected in GRB 221009A, while the prompt emission (black) and afterglow (gray) of this burst are plotted ...

The baseline can be determined by using a statistical or graphical method, such as the mean, median, mode, standard deviation, histogram, or trend line of the spectral gamma ray data. The ...

Unlike the detection of extrasolar planets, for which astronomers were actively searching, the discovery of gamma-ray bursts—sudden unpredictable flashes of high-energy photons coming from space ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film ...