September 11, 2017 to October 6, 2017
Institut de Physique Théorique, CEA Saclay
Europe/Paris timezone
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Marinoni: "E pur si muove!  A  real-time detection of our acceleration through space"

Sep 29, 2017, 12:00 PM
Institut de Physique Théorique, CEA Saclay

Institut de Physique Théorique, CEA Saclay

Orme des Merisiers batiment 774 Point courrier 136 CEA/DSM/IPhT, CEA/Saclay F-91191 Gif-sur-Yvette Cedex FRANCE


High-precision astrometric experiments will allow to detect our proper acceleration  through  space via real-time observations of the change in the aberration of  sources at cosmic distances.   This `Aberration Drift’  effect is a powerful consistency test of  FLRW metric,  it may set independent constraints on the amplitude of the Hubble constant and the linear growth rate of  cosmic structures,   and it  may also be instrumental in searching for evidences of new physics beyond the standard model.  I will present the formalism  of this novel  test of cosmology, discuss the physics to which it is sensitive   and  show simulated forecasts  of the accuracy with which it can be implemented by   ongoing satellite missions such as Gaia or upgraded future experiments.

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