Space News: Two years ago, astronomers watched in bewilderment as the corona of a supermassive black hole quickly disappeared from view, only to reappear months later. New research suggests that the strange event was caused by a runaway star.
|Scientists saw a black hole corona disappear | Space news 2020 | NASA|
Space News - The remnants of a runaway star.Because black holes can't be studied directly, scientists often observe their eating habits to learn what these giants are doing. So, when a black hole suddenly stops eating gas altogether - and then suddenly starts eating again, and is hungrier than ever.
What does this mean?
|Space news | typical feeding black hole and a briefly dimmed black hole.|
- The first clues, of which there was something, came from observations made by two large survey programs that scan the skies.
- Those early glimpses prompted scientists to recruit some X-ray observatories to get a better idea of what was happening in that patch of sky.
Video: The corona of the black hole disappears during an event that has never been observed before.
|The corona of the black hole disappears during an event that has never been observed before. (Video - 2020).|
|Title 75 characters||Black Hole’s Corona Disappears in An Event Never Witnessed Before - YouTube|
|Description 160 characters||Now you see it, now you don’t. Scientists saw a black hole corona totally disappear, only to find it brighten again later. They say it was so strange,...|
Reference and more sources.
The Destruction and Recreation of the X-Ray Corona in a Changing-look Active Galactic Nucleus
|Study results show that changing-look events can be associated with dramatic and rapid transformations of the innermost regions of accreting supermassive black holes.|
|Title 87 characters||The mystery of a black hole's disappearing (and reappearing) meal may be solved | Space|
|Description 124 characters||Scientists think they have an explanation for why a black hole corona suddenly disappeared, then gradually brightened again.|
|The mystery of a black hole's disappearing and reappearing. | Space news, 2020.|