We show that the monopole scalar charge of black holes in Einstein-Maxwell-dilaton theory is proportional to the electric potential at the event horizon, with a proportionality factor given by (minus) the scalar coupling constant. We also show that the scalar charge, in the weak electric charge limit, does not depend on the black hole spin. This result can be very useful to circumvent spin degeneracy issues when testing the theory against gravitational waves observations.

Pacilio, C. (2018). Scalar charge of black holes in Einstein-Maxwell-dilaton theory. PHYSICAL REVIEW D, 98(6) [10.1103/PhysRevD.98.064055].

Scalar charge of black holes in Einstein-Maxwell-dilaton theory

Pacilio C.
2018

Abstract

We show that the monopole scalar charge of black holes in Einstein-Maxwell-dilaton theory is proportional to the electric potential at the event horizon, with a proportionality factor given by (minus) the scalar coupling constant. We also show that the scalar charge, in the weak electric charge limit, does not depend on the black hole spin. This result can be very useful to circumvent spin degeneracy issues when testing the theory against gravitational waves observations.
Articolo in rivista - Articolo scientifico
Alternative gravity theories; Gravitation
English
2018
98
6
064055
partially_open
Pacilio, C. (2018). Scalar charge of black holes in Einstein-Maxwell-dilaton theory. PHYSICAL REVIEW D, 98(6) [10.1103/PhysRevD.98.064055].
File in questo prodotto:
File Dimensione Formato  
Pacilio-2018-Phys Rev D-AAM.pdf

accesso aperto

Descrizione: Article
Tipologia di allegato: Author’s Accepted Manuscript, AAM (Post-print)
Licenza: Altro
Dimensione 180.23 kB
Formato Adobe PDF
180.23 kB Adobe PDF Visualizza/Apri
Pacilio-2018-Phys Rev D-VoR.pdf

Solo gestori archivio

Descrizione: Article
Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Licenza: Tutti i diritti riservati
Dimensione 164.16 kB
Formato Adobe PDF
164.16 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/418680
Citazioni
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 15
Social impact