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2019-03-05 - Colloque/Présentation - poster - Anglais - 1 page(s)

Ducobu Ludovic , "Hairy Black Holes : Is Dark Matter a scalar field ?" in Mardi des Chercheurs 2019 (MdC2019), Mons, Belgique, 2019

  • Codes CREF : Physique théorique et mathématique (DI1210), Gravitation (DI1216)
  • Unités de recherche UMONS : Physique théorique et mathématique (S814)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
  • Centres UMONS : Algèbre, Géométrie et Interactions fondamentales (AGIF)
Texte intégral :

Abstract(s) :

(Anglais) Despite the unquestionable success of Einstein’s General Relativity (GR) at the solar system scale, some important phenomenons, such as Dark Matter and Dark Energy (accounting together for almost 95% of the matter-energy content of the known universe), remains beyond our understanding. What is Dark Matter “made of” ? Where does Dark Energy “comes from” ? Over the last decades, there were numerous attempts to solve this problem. One of them is to consider that the unrated phenomenons are due to unknown degrees of freedom (that can be interpreted as new particles or as a new component in the description of gravity) and the most simple candidate for these degrees of freedom is a scalar field. The aim of the poster is to present some general features of scalar-tensor theories of gravity and some results of my recent research related to black holes surrounded by scalar fields.