Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.’s Open University. Follow him on Twitter @sciencef1rst.
, located at the Palomar Observatory in Southern California, on March 1, 2021. This observation was followed up by the Neil Gehrels Swift Observatory and Neutron star Interior Composition ExplorerAlmost ten months after this first observation, the Nuclear Spectroscopic Telescopic Array satellite began to study AT2021ehb in X-ray light. delivered a surprise to astronomers when they first spotted a corona over 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," Califonia Institute of Technology graduate student and lead author Yuhan Yao, said.
Yao and the team will now look for more TDEs to study with telescopes such as Swift, NICER, and NuSTAR. These observations could add further details to the corona formation phenomenon seen around AT2021ehb.
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