The tidal disruption is marked by the absence of jets of gases.
whose gravitational force is tearing it apart. The star is located around 250 million light-years away, making it the fifth-closest star observed to have gone through a similar process. The event, termed AT2021ehb by Nasa, "took place in a galaxy with a central black hole about 10 million times the mass of our Sun," according to aResearchers at Nasa hope to identify more complex black hole-feeding behaviors by observing such events.
NuSTAR, which is sensitive to observing such wavelengths of light and the distance, enabled researchers to capture the process of the corona's formation and its evolution.event – could be used to understand better what happens to material that’s captured by one of these behemoths before it’s fully devoured," said a release.
"Tidal disruption events are a sort of cosmic laboratory. They’re our window into the real-time feeding of a massive black hole lurking in the center of a galaxy," said study co-author Suvi Gezari, an astronomer at the Space Telescope Science Institute in Baltimore.In such tidal disruptions, jets of gas that flow in opposite directions are seen with the formation of a corona near the black hole.
"We’ve never seen a tidal disruption event with X-ray emission like this without a jet present, and that’s really spectacular because it means we can potentially disentangle what causes jets and what causes coronae,” said Yuhan Yao, lead author of the study and a graduate student at Caltech in Pasadena, California.
The team is looking to analyze more tidal disruptions to better understand and confirm the events seen with AT2021ehb and other unusual activities.We present X-ray, UV, optical, and radio observations of the nearby tidal disruption event AT2021ehb/ZTF21aanxhjv during its first 430 days of evolution. AT2021ehb occurs in the nucleus of a galaxy hosting a≈107 M⊙ black hole . High-cadence Swift and Neutron Star Interior Composition Explorer monitoring reveals a delayed X-ray brightening.
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