English

Deforming regular black holes

General Relativity and Quantum Cosmology 2017-06-29 v3 Cosmology and Nongalactic Astrophysics

Abstract

In this work we have deformed regular black holes which possess a general mass term described by a function which generalizes the Bardeen and Hayward mass functions. By using linear constraints in the energy-momentum tensor to generate metrics, the solutions presented in this work are either regular or singular. That is, within this approach, it is possible to generate regular or singular black holes from regular or singular black holes. Moreover, contrary to the Bardeen and Hayward regular solutions, the deformed regular black holes may violate the weak energy condition despite the presence of the spherical symmetry. Some comments on accretion of deformed black holes in cosmological scenarios are made.

Keywords

Cite

@article{arxiv.1508.06701,
  title  = {Deforming regular black holes},
  author = {J. C. S. Neves},
  journal= {arXiv preprint arXiv:1508.06701},
  year   = {2017}
}

Comments

9 pages, 4 figures. Version 3 matches the published version in IJMPA

R2 v1 2026-06-22T10:42:30.206Z