JAKARTA – Common things to know black hole (black hole) is that it can absorb anything close to it, but that’s not entirely accurate.
We’ve always thought that anything that enters a black hole can never come back, but recent research has seen a quirk in that a black hole can eject the material it devoured.
The black hole AT2019dsg, located 665 million light-years away, is known to devour the star in 2018, then, for unknown reasons, became very active again in 2021.
Tvette Cendes, an astronomer at the Center for Astrophysics (CfA), said this supermassive black hole was then observed to eject the star it had devoured.
Black holes eject material at an astounding speed of half the speed of light. Researchers refer to this as a tidal disturbance event (TDE) and it is unknown why.
“We have been studying TDEs with radio telescopes for more than a decade and sometimes find them glowing in radio waves as they emit matter when a star is first consumed by a black hole,” said co-researcher Edo Berger. 17/10/2022).
“But there was radio silence at AT2018hyz for the first three years, and now it has dramatically flared up to become one of the brightest TDEs ever observed.”
The very strange thing is that the astronomers observed this spaghetti-making event and found it “irrelevant”. But for some reason, these outflows are much delayed and much faster than regular outflows.
“This is the first time we have seen such a long delay between feeding and outflow. The next step is to explore whether this is actually happening more regularly and we haven’t seen EFT late enough in its evolution,” Berger concluded.
(amj)
