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Inside MOND: Testing Gravity with Stellar Accelerations

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arxiv 2306.15939 v2 pith:YQYVGHRF submitted 2023-06-28 astro-ph.GA astro-ph.SRgr-qc

classification astro-ph.GAastro-ph.SRgr-qc
keywords accelerationaccelerationsdecadegalaxiesmatterstellararcsecondsbaryonic
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

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 ${\cal {O}}(10^{-9})$ 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 ${\cal {O}}(1)$ centimetre per second per decade at solar distances from the galactic centre. This level of precision is within reach of plausible future instruments.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Line-of-sight acceleration as a test of the Galactic Yukawa potential

    astro-ph.GA 2025-06 conditional novelty 5.0 of 10

    Using many RR Lyrae stars, line-of-sight acceleration measurements at 10 cm/s/decade could match rotation-curve constraints on a Milky Way Yukawa potential.

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