A spectacular image of gravitationally lensed galaxies from JWST also lead to new scientific discoveries - by AndyTomaswick
A bonus of those fantastic images is astronomers can use them for science. One of the four papers from the PEARLS team, led by Brenda Fyre of the University of Arizona, discusses the overall effect of the gravitational lensing effect offered by El Gordo, but the other three look at specific features of the image.
The Fishhook is a relatively small disk galaxy that is only about ¼ the size of the Milky Way. It even appears to be dying out over 10 billion years ago, as the star-forming region in the center was rapidly declining, also known as “quenching” in astronomical jargon. That discovery was the subject of the second paper, led by Patrick Kamieneski of Arizona State University.Another feature that some observers may even mistake as an imaging artifact is the line in the middle left of the image.
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