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For the first time in our galaxy fast radio signals


At the end of April, astronomers made a fantasticdiscovery - a neutron star (magnetar) located in the Milky Way showed unusual activity in the form of continuous streams of x-ray and gamma radiation. The first unusual activity of the magnetar SGR 1935 + 2154 was recorded by the space observatory Neil Gehrels Swift Observator. Scientists have identified such signals as single fast radio bursts (FRB), which are currently poorly understood and so far have only manifested themselves in radiation from other galaxies.

On April 28, the signal was registered by the CanadianRadio telescope CHIME (Canadian Hydrogen Intensity Mapping Experiment) located outside the line of sight SGR 1935 + 2154. It is the CHIME laboratory that specializes in the study of FRB. Researchers have suggested that SGR 1935 + 2154 could be the first source of radio burst in the Milky Way. The distance to the magnetar is about 30 thousand light-years, and earlier scientists could not fix the fast radio bursts generated by such space objects.

Scientists are currently worried about the levelsignal power, which can be classified as FRB, only for objects located relatively close to the magnetar. Outside of our Galaxy, this signal is barely visible. When classifying the signal level, it was revealed that the radiation from SGR 1935 + 2154 is close to the lower level of the range. This raises doubts as to whether the radiation belongs to single fast radio bursts and the study of the object continues. It should be noted that the FRB burst lasts several milliseconds, but at the same time energy is emitted, comparable with the energy emitted by the Sun for several thousand years.

Source: astronomerstelegram