| manuchandel | Date: Thursday, 10-February-2022, 1:38 PM | Message # 1 |
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| Surprisingly high fraction of dead galaxies found in ancient galactic 'city'
by Iqbal Pittalwala, University of California - Riverside
In the early universe, all previously discovered distant protoclusters like—for example—“The Spiderweb” (left: artist’s impression) are full of vigorously star-forming galaxies. In contrast, the newly-discovered protocluster “MAGAZ3NE J095924+022537” contains a high fraction of red and dead galaxies like the nearby “Coma” cluster (right). The discovery of an ancient cluster containing galaxies which resemble those found in modern clusters was a huge surprise. Credit: Spiderweb: M. Kornmesser/ESO; Coma: Russ Carroll, Robert Gendler, & Bob Franke/Dan Zowada Memorial Observatory.
An international team of astronomers led by researchers at the University of California, Riverside, has discovered an unusual massive cluster of young galaxies forming in the early universe. The newly discovered growing galactic metropolis, named MAGAZ3NE J095924+022537, is a newborn galaxy cluster, or protocluster, consisting of at least 38 member galaxies, and is about 11.8 billion light-years away from Earth.
Galaxy clusters grow over time under gravity, and in the present-day universe, can contain hundreds or even thousands of galaxies, as well as hot gas and dark matter. As time goes by, their galaxies burn through the fuel available and evolve from vigorously star-forming galaxies into red and dead galaxies.
Read more/ full article/source - https://phys.org/news....es.html
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