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Rn gravity as a viable alternative to dark matter: Application to stellar dynamics
dc.creator | Borka Jovanović, Vesna | |
dc.creator | Jovanović, Predrag | |
dc.creator | Borka, Duško | |
dc.creator | Capozziello, Salvatore | |
dc.date.accessioned | 2018-07-26T07:52:47Z | |
dc.date.available | 2018-07-26T07:52:47Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1055-6796 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/7781 | |
dc.description.abstract | The role of f(R) gravity, as well as the other modifications of standard Einstein’s gravity, is to explain the accelerated expansion, structure formation of the Universe, and some other phenomena at extragalactic scales (such as e.g. flat rotation curves of spiral galaxies) without adding unknown forms of dark energy or dark matter. In f(R) model, the Ricci scalar in the Einstein–Hilbert action is replaced by a general function of it. Its power-law form Rn is analyzed here using observed orbits of S-stars around the Galactic Center and also their computer simulations. We review the various consequences of the Rn gravity parameters (rc, the characteristic radius, i.e. the scalelength depending on the gravitating system properties; and β, the universal constant) on stellar dynamics and investigate their constraints from the observed S-star orbits. The presented results show that these observations could put reliable constraints on the parameters of Rn gravity. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176003/RS// | |
dc.relation | Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Italy, iniziative specifiche TEONGRAV and QGSKY (S.C.) | |
dc.relation | Bilateral cooperation between Serbia and Italy (451-03-01231/2015-09/1 “Testing Extended Theories of Gravity at different astrophysical scales”) | |
dc.relation | COST Action (CA15117 - CANTATA) | |
dc.rights | restrictedAccess | |
dc.source | Astronomical and Astrophysical Transactions | |
dc.subject | experimental tests of gravitational theories | en |
dc.subject | modified theories of gravity | en |
dc.title | Rn gravity as a viable alternative to dark matter: Application to stellar dynamics | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Цапоззиелло, Салваторе; Борка Јовановић, Весна; Јовановић, Предраг; Борка, Душко; | |
dc.rights.holder | © Cambridge Scientific Publishers and 2018 Astronomical and Astrophysical Transactions (AApTr) | |
dc.citation.volume | 30 | |
dc.citation.issue | 3 | |
dc.citation.spage | 351 | |
dc.citation.epage | 358 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85049593182 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_vinar_7781 |
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