HUGE blow for alternate theory of gravity MOND
Dr. Becky・17 minutes read
Banck and collaborators' research paper refutes the theory of Modified Newtonian Dynamics (M) proposed by Chay, using rigorous methods on data from over 8,000 binary stars to reveal the shortcomings of M and its inability to explain observed phenomena, leading to a potential need for a hybrid theory of gravity. Their study challenges the existence of dark matter in the universe and emphasizes the importance of precision and accuracy in analyzing gravitational theories, ultimately ruling out M as a viable explanation for gravitational phenomena.
Insights
- Banck and collaborators' rigorous analysis of wide binary stars using the Gaia mission data strongly rejects the theory of Modified Newtonian Dynamics (M), showcasing the robustness of their findings with a confidence level of 16 Sigma and highlighting the impact of measurement errors on study outcomes.
- The research paper by Banck and collaborators not only refutes the existence of M but also challenges the Dark Matter theory, proposing the need for a potential hybrid theory between relativity and Mond or another alternate theory of gravity, emphasizing Mond's inadequacy in explaining the universe's observations.
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Recent questions
What is the theory of Modified Newtonian Dynamics (Mond)?
A theory proposing an alternate perspective on gravity.
What is the Gaia mission?
A mission providing precise data on stars.
What is the wide binary star test?
A method to evaluate theories of gravity.
What is the Alpha gra parameter?
A parameter used to quantify theories of gravity.
What are the implications of Banck's study on Mond?
A study ruling out Mond with rigorous methods.
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Summary
00:00
Controversy over Gravity Theory M Rejection
- Two months ago, a viral research paper proposed an alternate theory of gravity called M that negates the need for dark matter, but with significant caveats.
- A new paper by Banck and collaborators, using the same data but a more rigorous method, refutes the existence of M and explains the inaccuracies in the previous study by Chay.
- The scientific community is embroiled in controversy over these conflicting findings.
- The theory of M modifies Newtonian Dynamics, offering a different perspective on gravity for objects with minimal accelerations.
- The wide binary star test is a crucial method to evaluate theories like M, observing pairs of stars with low accelerations to test gravitational predictions.
- The Gaia mission, launched in 2013, provides precise data on over a billion stars, enabling accurate testing of theories like M.
- Banck and collaborators introduced a parameter called Alpha gra to quantify different theories of gravity, using Bayesian statistics to analyze the data rigorously.
- Their analysis of 8,611 wide binary stars from Gaia data revealed a strong rejection of M, with a confidence level of 16 Sigma.
- Attempts to adjust model parameters to align with M's predictions were unsuccessful, highlighting the robustness of their findings.
- Discrepancies between Banck's results and Chay's study were attributed to stringent quality cuts on data, revealing the impact of measurement errors on study outcomes.
15:06
Challenging Mond: New Gravity Theories Explored
- The research paper by Indranil Banick and collaborators presents results that are more reliable due to rigorous methods and quality cuts, ruling out the theory of Modified Newtonian Dynamics (Mond) to a significant level, highlighting a comparison between Mond and Newtonian gravity on scales where Einstein's theory reduces to Newton's gravity.
- The study does not support the Dark Matter theory of the universe, suggesting a potential hybrid theory between relativity and Mond or another alternate theory of gravity, emphasizing that Mond is not the best theory to explain observations of the universe based on the research paper's findings.
