NASA’s Hubble Space Telescope Record in detail the last moments of a star as it is devoured by a black hole.
The agency said the suit transformed the star into a donut shape in the process.
When a star gets close enough, the black hole’s gravitational grip violently separates it, emitting intense radiation in what’s known as a “tidal disturbance event.”
Astronomers are using the telescope to better understand what’s going on, using its strong ultraviolet sensitivity to study the light from the “stellar snack event” AT2022dsb.
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This sequence of artist’s illustrations shows how a black hole can devour a passing star. 1. An ordinary star passes near a supermassive black hole in the center of the galaxy. 2. The gases outside the star are drawn into the gravitational field of the black hole. 3. A star shatters when tidal forces push it away. 4. The stellar remnants are drawn into a circular ring around the black hole and will eventually fall back into the black hole, emitting a huge amount of light and high-energy radiation.
(Credits: NASA, ESA, Leah Hustak (STScI))
The star is located 300 million light-years away, in the heart of galaxy ESO 583-G004.
Astronomers have detected nearly 100 tidal disturbance events around black holes using multiple telescopes.
The agency recently reported that another such event was detected by a high-powered space observatory in March 2021.
The star’s outer gases are drawn into the black hole’s gravitational field.
(Credits: NASA, ESA, Leah Hustak (STScI))
“We’re excited to be able to get these details about what the debris is doing. Tidal events can tell us a lot about a black hole,” said Emily Engelthaler of the Center for Astrophysics | He said in a statement to Harvard and the Smithsonian.
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to any galaxy A massive supermassive black hole At the center, stellar rupture is estimated to occur only a few times every 100,000 years.
This AT2022dsb event was first detected on March 1, 2022, by the All-Sky Instrument Survey of Supernovae, a network of ground-based telescopes.
The stellar remnants are drawn into a circular ring around the black hole and will eventually fall back into the black hole, emitting a massive amount of light and high-energy radiation.
(Credits: NASA, ESA, Leah Hustak (STScI))
The collision was close enough to Earth and bright enough for ultraviolet spectroscopy over a longer period of time than usual.
Usually these events are hard to notice. You will likely get some feedback early on in the turmoil when it is really evident. Our program is different because it is designed to look at some tidal events over the course of a year to see what happens,” explained Peter Maksim of the Astrophysics Center. We saw this early enough that we could observe it in the very intense phases of black hole accretion. We saw a decrease in the rate of accretion as decreases over time.”
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The data is interpreted as coming from the circular figure The gas district that was once a star.
The region known as the torus orbits a black hole at the centre.
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