Na minha lista:
| Main Authors: | , |
|---|---|
| Formato: | Recurso digital |
| Idioma: | inglês |
| Publicado em: |
Zenodo
2026
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| Acesso em linha: | https://doi.org/10.5281/zenodo.19789817 |
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Sumário:
- <p class="MsoNormal"><span>Galaxy rotation curves test how mass and gravity behave on kiloparsec scales. Many disks show nearly flat outer velocities that are too high to be explained by visible stars and gas alone. This paper summarizes a theoretical modeling approach in two frameworks: standard gravity with a dark matter halo and low-acceleration modified-gravity phenomenology. We outline baryonic mass modeling, discuss common halo profiles and fit degeneracies, and highlight robust qualitative outcomes such as flat outer curves and baryonic scaling relations. We then explain why rotation curves by themselves rarely provide a unique verdict on gravity and identify complementary observables—especially lensing and satellite dynamics—that can break degeneracies.</span></p>