Velocity distribution of elliptical galaxies in the framework of Non-local Gravity model |
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| Institution: | 1. Department of Theoretical Physics and Condensed Matter Physics (020), Vin?a Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia;2. Dipartimento di Fisica “E. Pancini”, Università di Napoli “Federico II”, Compl. Univ. di Monte S. Angelo, Edificio 6, Via Cinthia, I-80126, Napoli, Italy;3. Scuola Superiore Meridionale, Largo S. Marcellino 10, I-80138, Napoli, Italy;4. Astronomical Observatory, Volgina 7, P.O. Box 74, 11060 Belgrade, Serbia |
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| Abstract: | We investigate the velocity distribution of elliptical galaxies in the framework of Non-local Gravity. According to this approach, it is possible to recover the fundamental plane of elliptical galaxies without the dark matter hypothesis. Specifically, we compare theoretical predictions for circular velocity in Non-local Gravity context with the corresponding values coming from a large sample of observed elliptical galaxies. We adopt the surface brightness, effective radius and velocity dispersion as structural parameters for the fundamental plane. As final result, it is possible to show that non-local gravity effects can reproduce the stellar dynamics in elliptical galaxies and fit consistently observational data. |
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| Keywords: | Modified gravity Elliptical galaxies Fundamental plane |
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