The radial acceleration relation and its emergent nature. Issue Volume 15:Issue S359(2020) (March 2019)

• Record Type: Journal Article
• Authors: Rodrigues, Davi C.; Marra, Valerio
• Editors: Bergmann, Thaisa Storchi; Forman, William; Overzier, Roderik; Riffel, Rogério
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S359(2020)
• Page Start: 457
• Page End: 459
• Publication Date: 2019-03
• Subjects: galaxies: kinematics and dynamics, -- dark matter, -- gravitation; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320001684
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We review some of our recent results about the Radial Acceleration Relation (RAR) and its interpretation as either a fundamental or an emergent law. The former interpretation is in agreement with a class of modified gravity theories that dismiss the need for dark matter in galaxies (MOND in particular). Our most recent analysis, which includes refinements on the priors and the Bayesian test for compatibility between the posteriors, confirms that the hypothesis of a fundamental RAR is rejected at more than 5 σ from the very same data that was used to infer the RAR.