IRAP > Séminaires > Calendrier des séminaires > Scale invariant theory and dark matter, observational tests in cosmology and galactic physics

Scale invariant theory and dark matter, observational tests in cosmology and galactic physics

Séminaire le 22 mars 2018 de 11h00 à 12h00

Intervenant : André Maeder

Université de Genève

Salle de conférence Salle de conférence

Basics of the scale invariant theory are briefly presented. A dozen of tests in cosmology and galaxy physics are already performed. No dark matter appears necessary to account for the high rotation of galaxies and for the high velocity dispersion in  clusters of galaxies. A remarkable relation between the centripetal acceleration of galaxies and their  baryon gravity has been found by Lelli et al. (2017). At low gravities, it shows large deviations from the 1:1 line. These deviations are correctly described in the scale invariant context. First results on the growth of the density fluctuations are also shown.

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