Séminaire Univers / |
| « MOND-like behavior in the Dirac-Milne universe » |
|
Gabriel Chardin |
| Surprisingly, our universe is impressively close to a coasting universe, i.e. neither accelerating or decelerating. The Dirac-Milne universe, with its gravitational behavior analog to the Dirac particle-hole system, has such a coasting evolution at large scales. We show here that this induces several additional concordance properties: rotation curves are generically flat, scaling relations (Baryonic Tully-Fisher and Faber-Jackson) are predicted, and a MOND-like behavior is observed. Using 1D and 3D simulations, I will justify these assertions. |
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mardi 23 mars 2021 - 11:15 Webinaire Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |