Science

Astronomers are shocked when a black hole ejects a star

Astronomers are shocked when a black hole ejects a star

Astronomers were shocked when a black hole A new study analyzing the galactic event ripped apart a star that engulfed it three years ago.

The study, published last week in the Astrophysical Journal, details how scientists have seen a black hole 665 million light-years away engulfing Earth. However, in June 2021, the same black hole began ejecting traveling material speed of light.

“It took us completely by surpriseā€”no one had seen anything like this before,” said Yvette Sandes, co-author of the study and a research associate at the Center for Astrophysics. Harvard and Smithsonian.

“It’s as if this black hole suddenly started spewing out a bunch of material that it ate years ago,” Sandes added.

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Data from the Very Large Array in New Mexico told researchers the black hole had resurfaced, but the team didn’t know why the outflow was delayed by three years. Sandes compared black hole activity to “burping” after eating.

“This is the first time we have witnessed such a long delay between feeding and outflow,” said Edo Berger, another co-author of the study. “The next step is to explore whether this is actually happening more regularly and we’re not seeing TDEs late enough in their evolution.”

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Meaning of TDEs Tidal disturbance event and describes the process of a star being swallowed by a black hole. The researchers, who named the black hole “AT2018hyz”, collected observations using a variety of technologies, including the ALMA Observatory in Chile, MeerKAT in South Africa, the Australian Telescope Compact Array in Australia and the Chandra X-ray Observatory.

Black holes are thought to have formed from the remnants of massive dead stars. These regions are capable of absorbing anything and pulling all matter, including light.

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