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Dark matter or modified gravity?

02/22 2022 Seminar
  • Title Dark matter or modified gravity?
  • Speaker Tom Zlosnik (Czech Academy of Sciences)
  • Date 2022年02月22日 16:30
  • Venue Join Zoom Meeting Meeting ID: 893 1454 8112 Passcode: 682911
  • Abstract
    In 1983 Milgrom proposed that the evidence for dark matter in spiral galaxies could alternatively be explained using a modified law of gravity, termed Modified Newtonian Dynamics (MOND). This prescription was inherently non-relativistic and so it remained unclear how it could be extended to situations where the dynamics of spacetime plays a crucial role. I will review the history of dark matter and modified gravity and discuss a relativistic model which contains MOND in a certain limit with a focus on how its predictions compare to those of dark matter on the largest, cosmological scales.

    Contact 联系人  王少江