Astronomers at the Canadian Institute for Advanced Studies have found that rapid radio bursts are likely to occur because of the exotic conditions created by strong magnetic fields from neutron stars or black holes and dense ionized gas. The article was published in the journal Nature. This is reported in a press release on the EurekAlert website!. Fast radio bursts (FRB) are radio pulses of unknown origin that last only a few milliseconds. The first fast radio pulse was detected in 2001 by a radio telescope in Australia, the data from which was processed only by 2007. Since then, about 20 such signals have been confirmed. Probable sources were either merged with each other neutron stars, or turning into a black hole heavy pulsars (blitzars). In addition, some scientists believe that radio bursts arise because of the activities of extraterrestrial civilizations. Scientists only know one source of radio bursts, which emits repetitive pulses. In August 2017, American astronomers recorded 15 signals with a frequency of 5-8 GHz using the radio telescope Green Bank Telescope in Virginia, which originated from a dwarf galaxy remote from the Earth for three billion light years. The source, designated FRB 121102, also emitted radio pulses in 2012 and 2015. Repetition of signals makes FRB 121102 a convenient object for studying the causes of flares. Researchers analyzed the radio source radiation parameters. In vacuum, the influence of magnetic fields can lead to the Faraday effect, when the plane of the amplitude of the electromagnetic wave is rotated by a certain angle. Measuring this angle, scientists came to the conclusion that radio emission passed through a region of space with superstrong magnetic fields. Such exotic conditions can arise near a supermassive black hole that exceeds the diameter of the Sun by 10-100 million times and generates a powerful magnetic field. Then the direct source of the flare may be a neutron star or a plasma under the influence of a hole. Another explanation is that the FRB 121102 is a magnetized plerion - a nebula fed by a stellar wind from a pulsar. According to scientists, the results of observation indicate that FRBs can arise in the interaction of ultra-compact objects with extreme magnetic fields. However, it remains to be seen what kind of mechanism lies in the formation of fast radio pulses. More important news in the Telegram channel "The Tape of the Day". Subscribe!.

Original article: "Alien" signals found an unexpected explanation.