On the Evidence for Violation of the Equivalence Principle in Disk Galaxies
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866911255316398080 |
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| author | Sargent, Corey Clark, William Seifert, Antonia Mand, Alicia Rogers, Emerson Lane, Adam Deur, Alexandre Terzić, Balša |
| author_facet | Sargent, Corey Clark, William Seifert, Antonia Mand, Alicia Rogers, Emerson Lane, Adam Deur, Alexandre Terzić, Balša |
| contents | We examine the claimed observations of a gravitational external field effect (EFE) reported in Chae et al. We show that observations suggestive of the EFE can be interpreted without violating Einstein's equivalence principle, namely from known correlations between morphology, environment and dynamics of galaxies. While Chae et al's analysis provides a valuable attempt at a clear test of Modified Newtonian Dynamics, an evidently important topic, a re-analysis of the observational data does not permit us to confidently assess the presence of an EFE or to distinguish this interpretation from that proposed in this article. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_03839 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the Evidence for Violation of the Equivalence Principle in Disk Galaxies Sargent, Corey Clark, William Seifert, Antonia Mand, Alicia Rogers, Emerson Lane, Adam Deur, Alexandre Terzić, Balša General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics We examine the claimed observations of a gravitational external field effect (EFE) reported in Chae et al. We show that observations suggestive of the EFE can be interpreted without violating Einstein's equivalence principle, namely from known correlations between morphology, environment and dynamics of galaxies. While Chae et al's analysis provides a valuable attempt at a clear test of Modified Newtonian Dynamics, an evidently important topic, a re-analysis of the observational data does not permit us to confidently assess the presence of an EFE or to distinguish this interpretation from that proposed in this article. |
| title | On the Evidence for Violation of the Equivalence Principle in Disk Galaxies |
| topic | General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2511.03839 |