Most FRBs last only a few milliseconds at most. OB-type stars are short-lived hot, massive stars. The signal, named FRB 20191221A, is a fast radio burst (FRB) an intensely strong flash of radio waves coming from an unknown point of origin.
CNN RADIO SIGNAL FROM SPACE SERIES
Their diameters are comparable to the size of a city like Chicago or Atlanta, but they are incredibly dense, with masses bigger than that of our sun. (CNN) Mysterious radio signals from space have been known to repeat, but for the first time, researchers have noticed a pattern in a series of bursts coming from a single source half a billion. Neutron stars are the smallest in the universe, the remnants of supernovae. The authors of another paper, who consulted with the researchers who discovered the pattern, suggest the cause could be coming from a neutron star and early OB-type star binary system. In the paper, the researchers consider the possible causes, like the orbital motion of a star or an object that acts as a companion in the outskirts of the galaxy. “The discovery of a 16.35-day periodicity in a repeating FRB source is an important clue to the nature of this object,” the researchers wrote in their study. Now, the evidence of a pattern in the signal adds to the question of what could cause these bursts to emit the way that they do. It was also within a star-forming region of the arm, the researchers said. FRB 180916 was traced to one of the spiral arms of a Milky Way-esque galaxy. The first repeating fast radio burst traced, FRB 121102, linked back to a small dwarf galaxy containing stars and metals. So far, they have traced single and repeating fast radio bursts back to very different sources, which deepens the mystery. Researchers hope that by tracing the origin of these mysterious bursts, they can determine what caused them. The repeating signal was traced to a massive spiral galaxy around 500 million light-years away. Last year, the CHIME/FRB collaboration detected the sources of eight new repeating fast radio bursts, including this signal. The signal is a known repeating fast radio burst, FRB 180916.J0158+65. The authors of the paper are part of the CHIME/FRB collaboration, which has published a multitude of fast radio burst studies in recent years. The findings are included in the pre-print of a paper on arXiv, meaning the paper has been moderated but not fully peer reviewed.
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