Webb Sees Three Galaxy Clusters Coming Together to Form a Megacluster universetoday storybywill
has been to take deep-field images of iconic cosmic objects and structures. The JWST’s next-generation instruments and improved resolution provide breathtakingly detailed images, allowing astronomers to learn more about the cosmos and the laws that govern it. The latest JWST deep-field is of a region of space known as Abell 7244 – aka. Pandora’s Cluster – where three galaxy clusters are in the process of coming together to form a megacluster.
program. The UNCOVER team relies on data obtained by Webb’s Near-Infrared Camera to observe Pandora’s Cluster for about 30 hours. Follow-up observations are then made with the Near-Infrared Spectrograph to provide precise distance measurements and other detailed information about the lensed galaxies’ compositions. The program aims to study early galaxies to gain new insights into galaxy formation and evolution in the early Universe.
UNCOVER is a JWST Cycle 1 public Treasury survey that will obtain deep NIRCam multiband imaging and ultradeep low-resolution NIRSpec/PRISM spectroscopy of the Frontier Field Abell 2744. Credit: NASA/ESA/CSA/UNCOVERpowerful infrared instruments with a broad mosaic view of the clusters’ lensing effect, the UNCOVER team aimed to achieve a balance of depth and breadth that showcases the power of the JWST and the era of astronomy it is ushering in.
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James Webb Space Telescope opens Pandora's Cluster in stunning image with help from Einstein (video)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.
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