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Radial Acceleration Relation in Rotationally Supported Galaxies

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McGaugh, Stacy S., Lelli, Federico, Schombert, James M.·2016·Physical Review Letters
DOI 10.1103/physrevlett.117.201101
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Abstract

We report a correlation between the radial acceleration traced by rotation curves and that predicted by the observed distribution of baryons. The same relation is followed by 2693 points in 153 galaxies with very different morphologies, masses, sizes, and gas fractions. The correlation persists even when dark matter dominates. Consequently, the dark matter contribution is fully specified by that of the baryons. The observed scatter is small and largely dominated by observational uncertainties. This radial acceleration relation is tantamount to a natural law for rotating galaxies.

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Research works printed but not linked: 32

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Authors
McGaugh, S. S., Lelli, F., & Schombert, J. M.
Affiliations
  • Case Western Reserve University (US)
  • University of Oregon (US)
ORCID
Venue
Physical Review Letters
Publisher
American Physical Society (APS)
Published
2016-11-09
Volume
117
Issue
20
Pages
201101-201101
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
DOI
10.1103/physrevlett.117.201101
OpenAlex
W2523266658
Cited by
665
References
53
Citations by year
2026: 71 · 2025: 49 · 2024: 53 · 2023: 66 · 2022: 69 · 2021: 67 · 2020: 78 · 2019: 69 · 2018: 64 · 2017: 67 · 2016: 12
FWCI
33.79
Type
journal article
Language
en
Open access
Licence
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Scholarly Commons @ Case Western Reserve University (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Jet Propulsion Laboratory
  • California Institute of Technology
  • National Aeronautics and Space Administration (NNX13AH32G)
  • John Templeton Foundation
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
Keywords
radial acceleration relation, rotation curves, baryonic Tully-Fisher relation, dark matter, baryon distribution, galaxy morphology, galaxy mass, void fraction

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