论文标题

带有巨大标量场的Kerr黑洞的自旋诱导标量

Spin-induced scalarization of Kerr black holes with a massive scalar field

论文作者

Doneva, Daniela D., Collodel, Lucas G., Krüger, Christian J., Yazadjiev, Stoytcho S.

论文摘要

在本文中,我们研究了具有巨大的标量场的标量 - 高斯河网重力中Kerr黑洞的自旋诱导标量的开始。我们的方法基于相关线性标量场扰动方程的(2+1)时间演变。我们检查了Kerr黑洞变得不稳定的区域,从而带来了具有巨大标量场的新标量旋转的黑洞。随着标量场质量的增加,高斯 - 骨网耦合参数的最小值可能会导致标态化,增加,因此不稳定性区域收缩。有趣的是,标量场质量的引入不会改变黑洞角动量$ a _ {\ rm Crit}/m $的关键最小值,而Kerr黑洞的不稳定性也会发展出来。

In the present paper we study the onset of the spin-induced scalarization of a Kerr black hole in scalar-Gauss-Bonnet gravity with a massive scalar field. Our approach is based on a (2+1) time evolution of the relevant linearized scalar field perturbation equation. We examine the region where the Kerr black hole becomes unstable giving rise to new scalarized rotating black holes with a massive scalar field. With increasing of the scalar field mass, the minimum value of the Gauss-Bonnet coupling parameter at which scalarization is possible, increases and thus the instability region shrinks. Interestingly, the introduction of scalar field mass does not change the critical minimal value of the black hole angular momentum $a_{\rm crit}/M$ where the instability of the Kerr black hole develops.

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