Stable spontaneously-scalarized black holes in generalized scalar-tensor theories
Stable spontaneously-scalarized black holes in generalized scalar-tensor theories
复制标题
广义标量张量理论中的稳定自发标量黑洞
DOI:
10.1103/physrevd.106.024029
复制
发表时间:
2022
影响因子:
5
通讯作者:
Antoniou G
中科院分区:
文献类型:
--
作者:
Antoniou G
It has been shown that the synergy of a scalar field coupling with both the Ricci scalar and the Gauss-Bonnet invariant significantly affects the properties of scalarized black holes and neutron stars, including their domain of existence and the amount of scalar hair they carry. Here we study the radial stability of scalarized black-hole solutions. We demonstrate that they are stable against radial perturbations for Ricci couplings consistent with both a late-time cosmological attractor and the evasion of binary pulsar constraints. In addition, we investigate the effect of the Ricci coupling on the hyperbolicity of the equation governing linear, radial perturbations and show that it significantly reduces the region over which hyperbolicity is lost.
登录
查看更多内容
影响因子:
5
作者:
Georgios Antoniou;Lorenzo Bordin;T. Sotiriou
通讯作者:
Georgios Antoniou;Lorenzo Bordin;T. Sotiriou
影响因子:
8.6
作者:
T. Sotiriou;V. Faraoni
通讯作者:
T. Sotiriou;V. Faraoni
影响因子:
5
作者:
Hector O. Silva;C. F. Macedo;T. Sotiriou;L. Gualtieri;Jeremy Sakstein;E. Berti
通讯作者:
Hector O. Silva;C. F. Macedo;T. Sotiriou;L. Gualtieri;Jeremy Sakstein;E. Berti
影响因子:
5
作者:
Georgios Antoniou;Antoine Leh'ebel;Giulia Ventagli;T. Sotiriou
通讯作者:
Georgios Antoniou;Antoine Leh'ebel;Giulia Ventagli;T. Sotiriou
影响因子:
5
作者:
Fethi M. Ramazanouglu
通讯作者:
Fethi M. Ramazanouglu