A Massive Galaxy With Almost No Dark Matter universetoday storybywill
Hubble Space Telescope image of the galactic group in the Perseus Cluster that NGC 1277 is a member of. It is the bright galaxy just to the left of the center of the image. Credit: ESA/Hubble model – Dark Matter played an intrinsic role in the formation and evolution of the cosmos . In theory, this invisible mass existed shortly after the Big Bang and formed halos that attracted neutral hydrogen gas into swirling disks.
In their paper, the team describes NGC 1277 as a prototype “relic galaxy,” a very rare class that does not interact with neighboring galaxies. These galaxies are believed to be the remnants of giant galaxies that formed shortly after the Big Bang. However, the ?CDM model predicts that DM should account for at least 10% of galaxies as massive as NGC 1277, with a maximum of 70% for this particular type.
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Massive galaxy with no dark matter is a cosmic puzzleRobert 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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