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Inside MOND: testing gravity with stellar accelerations

delete2023-11-08
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OA
AI
M
Maxwell Finan-Jenkin *
R
Richard Easther
DOI:10.1088/1475-7516/2023/11/035delete
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Abstract

Abstract

En 中文
We quantify the differences between stellar accelerations in disk galaxies formed in a MONDian universe relative to galaxies with the identical baryonic matter distributions and a fitted cold dark matter halo. In a Milky Way-like galaxy the maximal transverse acceleration is O(10(-9)) arcseconds per year per decade, well beyond even the most optimistic extrapolations of current capabilities. Conversely, the maximum difference in the line-of-sight acceleration is O (1) centimetre per second per decade at solar distances from the galactic centre. This level of precision is within reach of plausible future instruments.
Keywords:
dark energy theory
dark matter simulations
modified gravity
rotation curves of galaxies

Journal

Journal of Cosmology and Astroparticle Physics cover
Journal of Cosmology and Astroparticle Physics
IF:
5.9
Papers:
1.3W
Citations:
4.7W

Organization

U
University of Auckland
Scholars:
2.3W
Papers: 2.4W
Citations: 3.3W