Radio waves

Strange radio waves emitted by astronomers in the central strain of the Milky Way

MILKY WAY GALAXY (WUTR/WFXV/WPNY) – From astronomers to University of Sydney in Australia discovered unusual signals coming from the center of the Milky Way. The source was detected six times between January 2020 and September 2020.

“The strangest property of this new signal is that it has a very high bias. That means its light oscillates in one direction, but that direction rotates over time,” said Ziteng Wang, the main author of this new study at the University of Sydney. “The brightness of the object also varies considerably, by a factor of 100, and the signal turns on and off seemingly randomly. We have never seen anything like this.”

He further explained that the object was initially invisible, became bright, faded, then reappeared. A very unusual behavior that could suggest a new class of stellar object.

When astronomers tried to find the object in visual light, they found nothing. The signal eventually returned, but they found its behavior to be drastically different. It disappeared in a single day, even though it had lasted for weeks in previous sightings. Wang and his team plan to keep a close eye on this object to look for more clues as to what it might be.