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Inside MOND: testing gravity with stellar accelerations
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DOI：10.1088/1475-7516/2023/11/035.png)
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Abstract
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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
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5.9
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1.3W
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4.7W