Regular rotating black holes and the weak energy condition

Autor(es)

Neves, J. C. S. ^[1] ; Saa, Alberto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Matemat Aplicada, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 734, p. 44-48, JUN 27 2014.
• Citações Web of Science: 42

Resumo

We revisit here a recent work on regular rotating black holes. We introduce a new mass function generalizing the commonly used Bardeen and Hayward mass functions and extend the recently proposed solutions in order to accommodate a cosmological constant A. We discuss some aspects of the causal structure (horizons) and the ergospheres of the new proposed solutions. We also show that, in contrast with the spherically symmetrical case, the black hole rotation will unavoidably lead to the violation of the weak energy condition for any physically reasonable choice of the mass function, reinforcing the idea that the description of the interior region of a Kerr black hole is much more challenging than in the Schwarzschild case. (C) 2014 The Authors. Published by Elsevier B.V. (AU)

• Processo FAPESP: 13/03798-3 - Cosmologias com ricochete: o universo ecpirótico
• Beneficiário: Juliano César Silva Neves
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado