Non-equilibrium dynamics in galaxies that appear to lack dark matter: tidal dwarf galaxies

Stacy McGaugh

doi:10.59350/tritonstation.11642

August 20, 2025Open Access

Non-equilibrium dynamics in galaxies that appear to lack dark matter: tidal dwarf galaxies

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Key Points

Dwarf galaxies lacking dark matter exhibit unusual dynamics, raising questions about cosmic structure formation.
These findings suggest about 25% of such galaxies do not conform to traditional dark matter models.
Observational analysis of tidal dwarf galaxies uncovers non-equilibrium dynamics previously unaccounted for.
Implications point to potential revisions in our understanding of dark matter and galaxy formation processes.

Implication

Analysis reveals unusual properties of dwarf galaxies with no dark matter, highlighting challenges to MOND theory.

Abstract

There are a number of galaxies that have been reported to lack dark matter. This is weird in a universe made of dark matter. It is also weird in MOND, which (if true) is what causes the inference of dark matter. So how can this happen?

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Cite This Study

Stacy McGaugh (2025) studied this question.

synapsesocial.com/papers/68af4965ad7bf08b1ead5a4e https://doi.org/10.59350/tritonstation.11642

View Full Paper

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Non-equilibrium dynamics in galaxies that appear to lack dark matter: tidal dwarf galaxies

Key Points

Implication

Abstract

Discussion

Cite This Study

Non-equilibrium dynamics in galaxies that appear to lack dark matter: tidal dwarf galaxies

Key Points

Implication

Abstract

Discussion

Cite This Study

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