Galactic Structures from Gravitational Radii

Galaxies

Predrag Jovanović¹  Duško Borka²  Vesna Borka Jovanović²  Salvatore Capozziello³ 

[1] Astronomical Observatory, Volgina 7, P.O. Box 74, 11060 Belgrade, Serbia;Atomic Physics Laboratory (040), Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia;Dipartimento di Fisica “E. Pancini”, Università di Napoli “Federico II”, Complesso di Monte Sant’Angelo, Edificio G, Via Cinthia, I-80126 Napoli, Italy;

关键词: modified theories of gravity;    methods: analytical;    methods: numerical;    galaxies;    galaxies: fundamental parameters;   

DOI  :  10.3390/galaxies6010022

来源: DOAJ

【 摘 要 】

We demonstrate that the existence of a Noether symmetry in f ( R ) theories of gravity gives rise to an additional gravitational radius, besides the standard Schwarzschild one, determining the dynamics at galactic scales. By this feature, it is possible to explain the baryonic Tully-Fisher relation and the rotation curve of gas-rich galaxies without the dark matter hypothesis. Furthermore, under the same standard, the Fundamental Plane of elliptical galaxies can be addressed.

【 授权许可】

Unknown