Can Milky Way’s Rotation Curve Constrain Dark Matter Gravity-Matter Coupling?

Davendra S. Hassan, M. Dio Danarianto, Anto Sulaksono

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We investigate the matter-gravity coupling of dark matter in the Milky Way by fitting the rotation curve of the Sérsic-based Galactic model with standard dark matter coupling and Yukawa-like effective coupling between DM and gravity. These models are fitted to different Milky Way rotation curve datasets, namely Sofue (2017 and 2020), Gaia DR3 derivations by Wang (2023) and Zhou (2023), and near-black hole data from the GRAVITY collaboration (2023). Our results show that there is a mixed statistical favour for the non-trivial DM-gravity coupling model based on the Bayes factor. We argue that more precise observational data covering a broader range of the galactic radii, such as outside of the Solar neighbourhood, are still required to gain a more exact insight into DM-gravity coupling in the Milky Way.

Original languageEnglish
Title of host publicationProceedings of the 10th International Seminar on Aerospace Science and Technology; ISAST 2024; 17 September, Bali, Indonesia - Integrating Aviation, Aerospace Science and Technology for Climate Solution
EditorsEry Fitrianingsih, Johan Muhamad, Yazdi Ibrahim Jenie, Joko Widodo
PublisherSpringer Science and Business Media Deutschland GmbH
Pages213-222
Number of pages10
ISBN (Print)9789819613434
DOIs
Publication statusPublished - 2025
Event10th International Seminar of Aerospace Science and Technology, ISAST 2024 - Bali, Indonesia
Duration: 17 Sept 202417 Sept 2024

Publication series

NameSpringer Proceedings in Physics
Volume416 SPPHY
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference10th International Seminar of Aerospace Science and Technology, ISAST 2024
Country/TerritoryIndonesia
CityBali
Period17/09/2417/09/24

Keywords

  • Dark matter
  • Galaxy
  • General relativity
  • Modified gravity

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