Testing Yukawa cosmology at the Milky Way and M31 galactic scales
Abstract We address the galaxy rotation curves through the Yukawa gravitational potential emerging as a correction of the Newtonian potential in extended theories of gravity. On the one hand, we consider the contribution of the galactic bulge, galactic disk, and the dark matter halo of the Navarro–F...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-04-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-12741-6 |
| _version_ | 1797209159124385792 |
|---|---|
| author | Rocco D’Agostino Kimet Jusufi Salvatore Capozziello |
| author_facet | Rocco D’Agostino Kimet Jusufi Salvatore Capozziello |
| author_sort | Rocco D’Agostino |
| collection | DOAJ |
| description | Abstract We address the galaxy rotation curves through the Yukawa gravitational potential emerging as a correction of the Newtonian potential in extended theories of gravity. On the one hand, we consider the contribution of the galactic bulge, galactic disk, and the dark matter halo of the Navarro–Frenk–White profile, in the framework of the standard $$\Lambda $$ Λ CDM model. On the other hand, we use modified Yukawa gravity to show that the rotational velocity of galaxies can be addressed successfully without the need for dark matter. In Yukawa gravity, we recover MOND and show that dark matter might be seen as an apparent effect due to the modification of the law of gravitation in terms of two parameters: the coupling constant $$\alpha $$ α and the characteristic length $$\lambda $$ λ . We thus test our theoretical scenario using the Milky Way and M31 rotation velocity curves. In particular, we place observational constraints on the free parameters of Yukawa cosmology through the Monte Carlo method and then compare our results with the predictions of the $$\Lambda $$ Λ CDM paradigm by making use of Bayesian information criteria. Specifically, we find that $$\lambda $$ λ is constrained to be of the order of kpc, while cosmological data suggest $$\lambda $$ λ of the order of Gpc. To explain this discrepancy, we argue that there is a fundamental limitation in measuring $$\lambda $$ λ due to the role of quantum mechanics on cosmological scales. |
| first_indexed | 2024-04-24T09:50:16Z |
| format | Article |
| id | doaj.art-c610d6bd423e4e4e8238958eafdd6bc7 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T09:50:16Z |
| publishDate | 2024-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-c610d6bd423e4e4e8238958eafdd6bc72024-04-14T11:25:58ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-04-0184411710.1140/epjc/s10052-024-12741-6Testing Yukawa cosmology at the Milky Way and M31 galactic scalesRocco D’Agostino0Kimet Jusufi1Salvatore Capozziello2Scuola Superiore MeridionalePhysics Department, State University of TetovoScuola Superiore MeridionaleAbstract We address the galaxy rotation curves through the Yukawa gravitational potential emerging as a correction of the Newtonian potential in extended theories of gravity. On the one hand, we consider the contribution of the galactic bulge, galactic disk, and the dark matter halo of the Navarro–Frenk–White profile, in the framework of the standard $$\Lambda $$ Λ CDM model. On the other hand, we use modified Yukawa gravity to show that the rotational velocity of galaxies can be addressed successfully without the need for dark matter. In Yukawa gravity, we recover MOND and show that dark matter might be seen as an apparent effect due to the modification of the law of gravitation in terms of two parameters: the coupling constant $$\alpha $$ α and the characteristic length $$\lambda $$ λ . We thus test our theoretical scenario using the Milky Way and M31 rotation velocity curves. In particular, we place observational constraints on the free parameters of Yukawa cosmology through the Monte Carlo method and then compare our results with the predictions of the $$\Lambda $$ Λ CDM paradigm by making use of Bayesian information criteria. Specifically, we find that $$\lambda $$ λ is constrained to be of the order of kpc, while cosmological data suggest $$\lambda $$ λ of the order of Gpc. To explain this discrepancy, we argue that there is a fundamental limitation in measuring $$\lambda $$ λ due to the role of quantum mechanics on cosmological scales.https://doi.org/10.1140/epjc/s10052-024-12741-6 |
| spellingShingle | Rocco D’Agostino Kimet Jusufi Salvatore Capozziello Testing Yukawa cosmology at the Milky Way and M31 galactic scales European Physical Journal C: Particles and Fields |
| title | Testing Yukawa cosmology at the Milky Way and M31 galactic scales |
| title_full | Testing Yukawa cosmology at the Milky Way and M31 galactic scales |
| title_fullStr | Testing Yukawa cosmology at the Milky Way and M31 galactic scales |
| title_full_unstemmed | Testing Yukawa cosmology at the Milky Way and M31 galactic scales |
| title_short | Testing Yukawa cosmology at the Milky Way and M31 galactic scales |
| title_sort | testing yukawa cosmology at the milky way and m31 galactic scales |
| url | https://doi.org/10.1140/epjc/s10052-024-12741-6 |
| work_keys_str_mv | AT roccodagostino testingyukawacosmologyatthemilkywayandm31galacticscales AT kimetjusufi testingyukawacosmologyatthemilkywayandm31galacticscales AT salvatorecapozziello testingyukawacosmologyatthemilkywayandm31galacticscales |