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A research team led by Professor Soebur Razzaque from the University of Johannesburg predicted gamma-ray burst (GRB) behaviour. One such burst recently disrupted cell phone reception in South Africa. While Earth gets blasted by mild short GRBs regularly, the research team found that giant flare GRB 200415A came from another possible source. It erupted from a very rare, powerful neutron star called a magnetar, a star dying soon after the beginning of the Universe. Their findings were published in Gamma-ray bursts explained GRB explosions can disrupt mobile phone reception on Earth. Prof Razzaque explains that when a star dies, “it will get bigger and become a red giant star. After that it will collapse into a small compact star called a white dwarf”. ....
Loading video. VIDEO: (90 second, 9.5MB video) On April 15 2020, a giant wave of X-rays and gamma rays lasting only a fraction of a second swept across the solar system, triggering. view more Credit: Animation: NASA s Goddard Space Flight Center/Chris Smith (USRA/GESTAR). Video: Therese van Wyk, University of Johannesburg. Earth gets blasted by mild short gamma-ray bursts (GRBs) most days. But sometimes a giant flare like GRB 200415A arrives at our galaxy, sweeping along energy that dwarfs our sun. In fact, the most powerful explosions in the universe are gamma-ray bursts. Now scientists have shown that GRB 200415A came from another possible source for short GRBs. It erupted from a very rare, powerful neutron star called a magnetar. ....