Galactic Growth: 10 Billion Years ago...

Discussion in 'Astronomy, Exobiology, & Cosmology' started by paddoboy, Dec 1, 2016.

  1. paddoboy Valued Senior Member

    Embryonic cluster galaxy immersed in giant cloud of cold gas
    December 1, 2016

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    Artist’s impression of the cosmic “ocean” of very cold gas discovered in the heart of an embryonic cluster of galaxies, about 10 billion light-years away. A single super-galaxy is expected to condense out of this cosmic gas cloud. Credit: Modified from ESO Science Release 1431. Credit: ESO/M. Kornmesser. This figure is licensed under CC BY 4.0 International License
    Astronomers studying a cluster of still-forming protogalaxies seen as they were more than 10 billion years ago have found that a giant galaxy in the center of the cluster is forming from a surprisingly-dense soup of molecular gas.

    "This is different from what we see in the nearby Universe, where galaxies in clusters grow by cannibalizing other galaxies. In this cluster, a giant galaxy is growing by feeding on the soup of cold gas in which it is submerged," said Bjorn Emonts of the Center for Astrobiology in Spain, who led an international research team.

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