NASA Gets Unusually Close Glimpse of Black Hole Destroying a Star Recent observations of a black hole devouring a wandering star may help scientists understand more complex black hole feeding behaviors. Multiple NASA telescopes recently observed a massive black hole tearing apart an unlucky star
satellite is the most sensitive space telescope capable of observing these wavelengths of light, and the event’s proximity provided an unprecedented view of the corona’s formation and evolution, according to a new study published in theThe work demonstrates how the destruction of a star by a black hole – a process formally known as a tidal disruption event – could be used to better understand what happens to material that’s captured by one of these behemoths before it’s fully devoured.
When a star wanders too close to a black hole, the intense gravity will stretch the star out until it becomes a long river of hot gas, as shown in this animation. The gas is then whipped around the black hole and is gradually pulled into orbit, forming a bright disk. Credit: Science Communication Lab/Most black holes that scientists can study are surrounded by hot gas that has accumulated over many years, sometimes millennia, and formed disks billions of miles wide.
“Tidal disruption events are a sort of cosmic laboratory,” said study co-author Suvi Gezari, an astronomer at the Space Telescope Science Institute in Baltimore. “They’re our window into the real-time feeding of a massive black hole lurking in the center of a galaxy.”The focus of the new study is an event called AT2021ehb, which took place in a galaxy with a central black hole about 10 million times the mass of our Sun .
Scientists think that the stream of gas gets whipped around a black hole during such events, colliding with itself. This is thought to create shock waves and outward flows of gas that generate visible light, as well as wavelengths not visible to the human eye, such as ultraviolet light and X-rays. The material then starts to settle into a disk rotating around the black hole like water circling a drain, with friction generating low-energy X-rays.
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