Does the external field effect prove MOND over dark matter?

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SUMMARY

The paper "Testing the Strong Equivalence Principle: Detection of the External Field Effect in Rotationally Supported Galaxies" by Kyu-Hyun Chae et al. presents a 4 sigma detection that challenges the dark matter paradigm. The study focuses on 153 galaxies, suggesting that the results may support Modified Newtonian Dynamics (MOND) as a viable alternative. The findings indicate that dark matter models fail to account for the observed external field effect, raising significant questions about the current understanding of galaxy dynamics.

PREREQUISITES
  • Understanding of Modified Newtonian Dynamics (MOND)
  • Familiarity with the Strong Equivalence Principle
  • Knowledge of galaxy rotational dynamics
  • Ability to interpret astronomical data and statistical significance (e.g., sigma levels)
NEXT STEPS
  • Research the implications of the Strong Equivalence Principle in astrophysics
  • Study the methodology behind the detection of the external field effect
  • Explore the limitations of dark matter models in explaining galaxy behavior
  • Examine other studies supporting or refuting MOND as an alternative theory
USEFUL FOR

Astronomers, astrophysicists, and researchers interested in galaxy dynamics, dark matter alternatives, and the implications of MOND in modern cosmology.

kodama
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paper on external field effec
this paper,

Testing the Strong Equivalence Principle: Detection of the External Field Effect in Rotationally Supported Galaxies

Kyu-Hyun Chae1

, Federico Lelli2, Harry Desmond3, Stacy S. McGaugh4, Pengfei Li4, and James M. Schombert5 Published 2020 November 20 claims a 4 sigma detection, and that dark matter cannot reproduce this.

i understand this is only 153 galaxies and not 153 million galaxies, but if the results hold up, does this mean MOND?
 
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