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According to sciencealert.com, researchers at Kejo University believe that this signal occurs when the accumulation disk around the black hole begins to flicker and emit extremely fast rotating radius dots. The researchers published their study findings in The Astrophysical Journal Letters last month. They reveal the unimaginable chaos that takes place at the core of our galaxy.
Such flashing signals are not something entirely new: Scientists have discovered larger, slower flashes in the past. However, thanks to the Atacama Large Milllimeter / Submillimeter Array (ALMA) telescope, scientists can now capture the spread of such tiny signals more than ever.
Milky Way
“This time, using ALMA, we obtained high-quality data on the variation in intensity of the Sgr A * radio wave over ten days and 70 minutes per day,” said Yuhei Iwata, who led the study. “Then we recorded two trends: quasi-periodic variations, with a typical time scale of 30 minutes and a slow variation of one hour.”
“This radiation may be related to some exotic phenomena that occur very close to the supermassive black hole,” said Tomoharu Oka, a professor at Kejo University, in a press release.
These fluctuations probably emanate from the gas circulating around the black hole, which may help explain why it is so difficult to monitor them directly.
“In fact, the faster the movement, the more difficult it is to photograph the subject,” Oka said.
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