Charged scalar-tensor solitons and black holes with (approximate) Anti-de Sitter asymptotics.
BRIHAYE, Yves; HARTMANN, Betti.
BRIHAYE, Yves; HARTMANN, Betti.
 Abstract: We discuss charged and static solutions in a shift-symmetric scalar-tensor gravity model including a negative cosmological constant. The solutions are only approximately Anti-de Sitter (AdS) asymptotically. While spherically symmetric black holes with scalar-tensor hair do exist in our model, the uncharged spherically symmetric scalar-tensor solitons constructed recently cannot be generalised to include charge. We point out that this is due to the divergence of the electric monopole at the origin of the coordinate system, while higher order multipoles are well-behaved. We also demonstrate that black holes with scalar hair exist only for horizon value larger than that of the corresponding extremal Reissner-Nordstrom-AdS (RNAdS) solution, i.e. that we cannot construct solutions with arbitrarily small horizon radius. We demonstrate that for xed Q a horizon radius exists at which the speci c heat CQ diverges | |
| Journal of High Energy Physics |
| v. 2019, n. 1, p. 142-1-142-17 - Ano: 2019 |
| Fator de Impacto: 5,541 |
| http://dx.doi.org/10.1007/JHEP01(2019)142 |  @article={002926178,author = {BRIHAYE, Yves; HARTMANN, Betti.},title={Charged scalar-tensor solitons and black holes with (approximate) Anti-de Sitter asymptotics},journal={Journal of High Energy Physics},note={v. 2019, n. 1, p. 142-1-142-17},year={2019}} |