Gamma rays are difficult to explain in the universe

American scientists first discovered the strong release of gamma-ray radiation accompanied by radio waves in very short time.

Astronomers at the University of Pennsylvania, USA, discovered "horns" in the universe, also known as extremely short-time radio waves (FRB). In some cases FRB releases energy in the form of gamma rays a billion times more powerful than the radio waves, on par with the power of a supernova explosion. Research results are published in Astrophysical magazine on 11/11.

The origin of gamma rays emitted by FRB is related to the magnetic flux of magnetic stars or the merging of two neutron stars to form a black hole.(Photo: NASA).

"This discovery helps us visualize FRB. They can manifest as a whistle or an explosion. This is a common phenomenon occurring somewhere in the universe more than 2,000 times a day," the Daily Science quoted. Derek Fox, a member of the research team, said.

Scientists discovered FRB for the first time in 2007. So far there are dozens of similar events recorded. FRB is very far from Earth and comes from random directions in the sky. They only last a few milliseconds at certain frequencies.

James Delaunay, the lead author of the study, uses Swift satellite data from the US Aerospace Agency (NASA) to track gamma-ray bursts in the universe. Delaunay reported a strong release of gamma-ray radiation at a specific location in the sky, where a radio wave of FRB 131104 occurred on November 4, 2013.

"Although theoretical physicists predict that FRB may be associated with gamma rays, the gamma-ray burst that we see from FRB 131104 is very powerful and surprisingly long. about 2 to 6 minutes, much larger than the one-millisecond time of radio waves , " Fox said.

The research team proposed two models to explain the origin of gamma rays emitted by FRB . The first model involved the magnetic flare event of magnetic stars (magnetar) , the type of dense neutron star formed by the collapse of a massive star. The second model is the intense merger of two neutron stars colliding with each other to form a black hole.