Dark matter or modified gravity?

Zapraszamy w piatek 26.11.2021r. o godz. 12:15

Seminarium ONLINE pt.: Dark matter or modified gravity? Speaker: dr Thomas Złośnik, Affiliation: Czech Academy Of Sciences

Place:https://zoom.us/j/95286146925?pwd=OEM4R2E2NEdtdDZIN2ZPVlBFRHlrQT09

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 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.