PIRSA:23030093

Scalar fields in strong gravity: black holes, neutron stars and wormholes

Antoniou, G. (2023). Scalar fields in strong gravity: black holes, neutron stars and wormholes. Perimeter Institute. https://pirsa.org/23030093

Antoniou, Georgios. Scalar fields in strong gravity: black holes, neutron stars and wormholes. Perimeter Institute, Mar. 02, 2023, https://pirsa.org/23030093 

          @misc{ pirsa_PIRSA:23030093,
            doi = {10.48660/23030093},
            url = {https://pirsa.org/23030093},
            author = {Antoniou, Georgios},
            keywords = {Strong Gravity},
            language = {en},
            title = {Scalar fields in strong gravity: black holes, neutron stars and wormholes},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {mar},
            note = {PIRSA:23030093 see, \url{https://pirsa.org}}
          }

Georgios Antoniou

University of Nottingham

Talk number
PIRSA:23030093
Collection
Talk Type
Subject
Abstract

No-hair theorems prevent black holes in General Relativity (GR) from being characterized by any property other than their mass, electric charge, and spin. Scalar fields provide perhaps the simplest way to generalize GR, and it turns out that cases exist where the no-hair theorems can be evaded and black holes with scalar hair may emerge. In this talk I will examine the notion of nontrivial scalar field configurations arising in the strong regime of gravity near black holes, but also compact neutron stars and wormholes. I will go over the concept of spontaneous scalarization of compact objects and discuss the viability of scalarized solutions against observations.

Zoom link:  https://pitp.zoom.us/j/92273469560?pwd=elpDRzliOHFaaUh3YVhzbC92NFlmUT09