Testing modified gravity theory in the Milky Way

dc.creatorNegrelli, Carolina Soledad
dc.creatorBenito, Maria
dc.creatorLandau, Susana Judith
dc.creatorIocco, Fabio
dc.creatorKraiselburd, Lucila
dc.date2018
dc.date2020-05-28T17:46:43Z
dc.date.accessioned2023-07-14T20:06:26Z
dc.date.available2023-07-14T20:06:26Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/96967
dc.identifierhttps://ri.conicet.gov.ar/11336/81699
dc.identifierhttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.104061
dc.identifierhttps://arxiv.org/abs/1810.07200
dc.identifierissn:2470-0029
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7437930
dc.descriptionWe perform a test of John Moffat's modified gravity theory (MOG) within the Milky Way, adopting the well-known "rotation curve" method. We use the dynamics of observed tracers within the disk to determine the gravitational potential as a function of galactocentric distance and compare that with the potential that is expected to be generated by the visible component only (stars and gas) under different "flavors" of the MOG theory, making use of a state-of-the-art setup for both the observed tracers and baryonic morphology. Our analysis shows that in both the original and the modified version (considering a self-consistent evaluation of the Milky Way mass), the theory fails to reproduce the observed rotation curve. We conclude that in none of its present formulations is the MOG theory able to explain the observed rotation curve of the Milky Way.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/2.5/ar/
dc.rightsCreative Commons Attribution 2.5 Argentina (CC BY 2.5)
dc.subjectCiencias Astronómicas
dc.subjectMilky way
dc.subjectModified gravity
dc.titleTesting modified gravity theory in the Milky Way
dc.typeArticulo
dc.typePreprint


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