Astronomers working on the telescope, CHIME, recorded a powerful burst from the Magnetar in the milky Way. The peculiarity of this discovery is not only the fact that the surge coincided with a period of increased activity of the Magnetar, but also that it is similar to the mysterious fast radio bursts. If the discovery is confirmed, the Magnetar would be the closest to the Earth source of the fast radio bursts, reported on the portal of The Astronomer”s Telegram.
Fast radio bursts (Fast Radio Burst FRB) is a short (up to few milliseconds) but a powerful radio pulses. Their discovery was accidental and occurred in 2007, and it soon became clear that they may have an extraterrestrial nature. Today was about hundreds of such bursts are associated with neutron stars, blizkimi, the collapse of the axion mini-clusters, extraterrestrials , and other phenomena.
In 2018 were able to determine that the fast radio bursts from a repeating source of FRB 121102 might arise in a magnetized environment near a rotating pulsar. Then was the first identified source individual quick burst, soon followed a second similar opening, and then was discovered and over eight sources of recurring FRB. All the discoveries have in common is that all sources of fast radio bursts are extragalactic in nature. The closest source FRB is a large spiral galaxy with a redshift of z = 0,0337, recently for the first time managed to detect periodicity in fast radio bursts from him.
27 April 2020 the Magnetar SGR 1935+2154 associated with the supernova remnant SNR G57.2+0.8 in the milky Way, located at a distance of 30 thousand light-years away in the constellation Chanterelles, experienced a surge of activity in x-ray range. Previously it was thought that this Magnetar — soft gamma-ray bursts. He became the target of observations to the space telescope “Swift”, the Observatory AGILE, NICER telescopeinstalled on the ISS, INTEGRAL Observatory and other telescopes.
Initially his behavior was typical character for such objects, however, 28 APR canadian telescope CHIME announced the registration of the Magnetar’s powerful burst that had two peak component with a length of five milliseconds divided by fifteen milliseconds. Radio flux at frequencies of 400-800 megahertz, made several kilianski per millisecond.
The analysis of archival data CHIME with the start of work at the end of 2018 revealed no similar events associated with this Magnetar, in the past. If the Magnetar was in another galaxy, then for the observer the signal would have looked like a quick burst. However, scientists have yet to analyze all data to determine the similarity of the spectrum of flares from SGR 1935+2154 spectra of extragalactic fast radio bursts.