Thanks to the James Webb Space Telescope’s first images of galaxy clusters, researchers have, for the very first time, been able to examine very compact structures of star clusters inside galaxies, so-called clumps. In a paper published in the Monthly Notices of the Royal Astronomical Society, resea
The James Webb Space Telescope captured this image of a galaxy cluster . The five zoomed in galaxies are so far away that we observe them as they were when the Universe was between one and five billion years old. Today the Universe is 13.7 billion years old. Credit: Image adapted from image release by NASA, ESA, CSA, STScI’s first images of galaxy clusters, researchers have, for the very first time, been able to examine very compact structures of star clusters inside galaxies, so-called clumps.
“The galaxy clusters we examined are so massive that they bend light rays passing through their center, as predicted by Einstein in 1915. And this in turn produces a kind of : the images of background galaxies are magnified,” explains Adélaïde Claeyssens, Department of Astronomy, Stockholm University, one of the lead authors of the study.made it possible for the researchers to detect stellar clumps, very compact galaxy structures.
Reference: “Star formation at the smallest scales; A JWST study of the clump populations in SMACS0723” by Adélaïde Claeyssens, Angela Adamo, Johan Richard, Guillaume Mahler, Matteo Messa and Miroslava Dessauges-Zavadsky, 5 January 2023,
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