2013
Resultado de búsqueda
Hace 1 día · A gamma ray sensor built by LLNL scientists is an essential part of a larger gamma-ray spectrometer (GRS) built in collaboration with researchers from Johns Hopkins Applied Physics Laboratory.
Hace 3 días · In gamma-ray astronomy, gamma-ray bursts ( GRBs) are immensely energetic explosions that have been observed in distant galaxies, being the brightest and most extreme explosive events in the entire universe, [1] [2] [3] as NASA describes the bursts as the "most powerful class of explosions in the universe". [4]
Hace 2 días · Illustration of the French-Chinese SVOM mission, whose goal is to study gamma-ray bursts. On 22 June, a Chinese Long March 2C rocket launched the SVOM satellite, carrying two French-designed instruments, into orbit. The mission's goals are to investigate the mechanism of gamma-ray bursts and carry out indirect surveys of the intergalactic ...
Hace 1 día · The solar disk is a bright source of multi-GeV and TeV gamma rays, due to the interactions of high-energy Galactic Cosmic Rays (GCRs) with the chromo- and photo-sphere plasmas of the Sun. However, the underlying production mechanisms remain
Hace 1 día · View PDF HTML (experimental) Abstract: We analyze the GeV $\gamma$-ray emission from the W3 complex using about 14 years of Pass 8 data recorded by the $\it Fermi$ Large Area Telescope (\textit{Fermi}-LAT). We resolve the $\gamma$-ray emissions around W3 into two components: an elliptical Gaussian overlapping with the molecular gas and a point-like source near the cluster W3 Main.
Hace 4 días · But first, why study gamma-ray bursts? GRBs are bursts of highly energetic gamma rays, which last from less than a second to several minutes.They are known to occur in distant realms of the universe, and “can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of the Sun”, according to NASA.
Hace 5 días · Brightest Gamma-Ray Burst of All Time Came from the Collapse of a Massive Star. Apr. 12, 2024 — In 2022, astronomers discovered the brightest gamma-ray burst (GRB) of all time. Now, astronomers...
