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Chinese scientists have proposed an explanation for strange and fast radio bursts from space

Researchers at the University of Nanjing (China) proposed a new explanation for the mysterious fast radio impulses (FRB), within which a large amount of energy is expelled to outer space in a few milliseconds. According to Chinese scientists, this phenomenon is associated with the formation of the crust in "strange" stars.



The first FRB signal was detected in 2001 by the radio telescope in Australia. However, data on it was processed only in 2007. Since then, astronomers have been able to confirm several dozen such signals, but no one has been able to find out their true nature. There were many different hypotheses trying to explain where these rapid radio bursts originated from. However, the complexity of tracking them (they last only a few milliseconds) does not allow scientists to get more convincing results. In this wave, even the assumption arose that this phenomenon may be connected with the activity of extraterrestrial civilizations. Science considers that this hypothesis is the least probable, but still.

Also the probable sources were fused together with neutron stars, or pulsars of heavy holes (blitzars) becoming a black hole. Some researchers criticize these hypotheses because sometimes the radio bursts are repeated.

Chinese astrophysicists, in turn, believe that the source of rapid explosions is a special type of neutron star: strange stars. In the bowels of these objects a "soup" of quarks is formed, consisting of three varieties of quarks, including strange quarks. This matter is in a low energy state, which makes it stable. According to the theoretical model, sometimes produces an ordinary hadronic matter (consisting of neutrons), which moves from the star and forms a crust on its surface. The bark becomes increasingly difficult over time and at some point of time it collapses.

The star of the naked quark becomes a source of electron-positron pairs for a short time and generates an electromagnetic field. This, in turn, leads to the acceleration of electrons and positrons at speeds close to the speed of light. When moving, the particles emit coherent radio emissions, which register as a rapid radius burst. Then the hadronic cortex is restored and the cycle is repeated again. The formation period of the cortex can be very long, which explains the unique cases of radio bursts.

The investigators point out that additional investigations will be required to confirm or refute this assumption. In addition, it will be necessary to verify if the collapse of the stellar "crust" actually leads to the generation of an electromagnetic field, instead of radio waves.

For the time being, any radiation in the X-ray or gamma ranges will be too weak for observation with the help of modern detectors. Therefore, according to scientists, future observations of FRB signals will require the use of more sensitive instruments.

These tools can be, for example, the CHIME (Canadian Hydrogen Intensity Mapping Experiment) telescope located in British Columbia, or the Square Kilometer Array ("antenna grid area per square kilometer"), which is being built in South Africa and Australia.

These devices will be optimized for radio astronomy and will be able to tell you more about FRB signals and other mysterious cosmic phenomena.
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