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An attempt to do without dark matter.

W H Kinney¹, M Brisudova

¹Department of Astronomy, University of Florida, Gainesville, Florida 32611, USA. kinney@astro.columbia.edu

Annals of the New York Academy of Sciences

|June 20, 2001

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This study proposes a novel hypothesis introducing a non-gravitational force to explain galactic dynamics without dark matter. While the model ultimately fails observational tests, it offers an interesting alternative to standard cosmological models.

Area of Science:

Cosmology
Astrophysics
Theoretical Physics

Background:

The universe's large-scale structure and dynamics are often explained by the presence of dark matter.
A significant discrepancy exists between the dynamical mass of celestial objects and the observed luminous matter.
Current models necessitate non-baryonic dark matter to reconcile these observations.

Purpose of the Study:

To propose and investigate a new hypothesis that eliminates the need for dark matter.
To introduce an additional non-gravitational force coupled to baryon number as a charge.
To compare this novel hypothesis with established theories like Modified Newtonian Dynamics (MOND).

Main Methods:

Formulating a theoretical model with an additional force linked to baryon number.

Related Experiment Videos

Comparing the predictions of this new model against observational data.

Evaluating the model's consistency with Milgrom's modified Newtonian dynamics.

Main Results:

The proposed hypothesis, while innovative, was found to be inconsistent with observational evidence.
The model's failure provides insights into the constraints for alternative theories of gravity and cosmology.
The study highlights specific areas where the model deviates from empirical data.

Conclusions:

The hypothesis of a non-gravitational force coupled to baryon number does not resolve the dark matter problem.
Despite its failure, the model's interesting failure mode offers valuable lessons for future theoretical developments.
Further research is needed to explore alternative explanations for cosmic structure formation and galactic dynamics.