Star-UBB Seminar Series:- Bootstrapped Newtonian compact objects
Bootstrapped Newtonian gravity is a bottom-up approach constructed by adding several gravitational self-interaction terms to the Poisson equation for Newtonian gravity, and it is used to analyze static spherically symmetric compact sources. A noteworthy feature of bootstrapped Newtonian gravity is the absence of a Buchdahl limit, which means that a matter source can be held in equilibrium by a large enough (and finite) pressure for any (finite) compactness value. The solutions for the gravitational potential can effectively describe the interior of macroscopic black holes in the quantum theory and predict deviations from general relativity in the strong field regime of very compact objects. An overview of the results obtained within this model will be presented.
時間：2024.05.23(四) 16:00~17:30
頻道：Zoom ID:853-7454-4159 ←
講者：Dr. Octavian Micu (Institute for Space Sciences, Bucharest-Magurele, Romania)
語言：英語
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Scientific and Technological Advanced Research- Babeș-Bolyai University(Star-UBB) Seminar Series in Gravitation, Cosmology and Astrophysics
Presently a period of rapid and intense change are being witnessed in our understanding of the gravitational force, at a rate that is quickly increasing since the important observational discoveries of the late 1990s. With the advent of new observational techniques, the emergence of important cosmological and astrophysical paradigms can be seen that lead to a deep change in our understanding of the Universe. Astronomical observations strongly suggest that at large scales the force of gravity may not behave according to standard general relativity, and that a generalization of the gravitational action, either at the geometric level, or at the matter level, may be required for a full understanding of the gravitational interaction.
The goal of the present seminar is to bring Theoretical Gravitational Physics closer to the observations and experiments, and to discuss current topics in general relativity, high-energy physics, astrophysics and cosmology.
此活動由Star-UBB*主辦。
