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These are the most powerful explosions in the universe (Space.com)
<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Astronomers have determined the origin of "Long gamma-ray bursts", the most powerful electromagnetic phenomena of the universe. "data-reactid =" 23 "> Astronomers have come up with the origin of the "Long gamma-ray bursts", the most powerful electromagnetic phenomena in the universe.
Bursts release as much energy in about a second as the Sun will release throughout its life.
Scientists used simulations to determine that the photons emitted by the bursts came from the visible surface of high-speed jets emitted when massive stars tore apart.
The researchers used supercomputers to simulate how gamma rays were released – and whether it was logical that they came from the surface of the jets released by the dying star.
The emission is called "photospheric", where the rays come from the surface of the jets when they expand.
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Lead author Hirotaka Ito of the RIKEN group for pioneering research said, "For us, this strongly suggests that the photospheric emission is the mechanism of gamma ray emission.
"There are still mysteries about how relativistic jets are generated by collapsing stars.
"Our calculations should provide valuable information to examine the fundamental mechanism of generating these extremely powerful events."
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