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James Webb Space Telescope joins the hunt for newborn exoplanets
JWST quickly spotted signs of a forming exoplanet — but not the one that astronomers had expected to see.
"Basically, in every disk we have observed with high enough resolution and sensitivity, we have seen large structures like gaps, rings and, in the case of SAO 206462, spirals," team member and University of Michigan astronomer Gabriele Cugno said in a statement. A protostar is a stellar body that has not yet piled on enough mass to trigger the fusion of hydrogen to helium in its core, the process that defines a fully fledged main sequence star like the sun. JWST's Near Infrared Camera (NIRCam) allowed Cugno and colleagues to delve deeper into the disk of SAO 206462 and detect thermal energy from the planet, some of which is released as material falls onto it at high speeds.
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