Universality of free fall versus ephemeris

2017/05/15 by O. Minazzoli, Olivier Minazzoli, Léo Bernus +13 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Pulsars and Gravitational Waves Research #gr-qc

paper · pdf · doi:10.48550/arxiv.1705.05244

To appear in the Proceedings of the 52th Rencontres de Moriond. 4 pages

arxiv created 2017/05/15 · openalex publication_date 2017/05/15 · arxiv updated 2017/05/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

When a light scalar field with gravitational strength interacts with matter, the weak equivalence principle is in general violated, leading for instance to a violation of the universality of free fall. This has been known and tested for a while. However, recent developments [Minazzoli & Hees, PRD 2016] showed that a novel manifestation of the universality of free fall can appear in some models. Here we discuss this new scenario and expose how we intend to constrain it with INPOP ephemeris.

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• The new lunar ephemeris INPOP17a and its application to fundamental physics
• Motion in time-periodic backgrounds with applications to ultralight dark matter halos at galactic centers

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