Physical objects approaching the Cauchy horizon of a rapidly rotating Kerr black hole

被引:0
作者
Mallary, Caroline [1 ]
Khanna, Gaurav [1 ]
Burko, Lior M. [2 ]
机构
[1] Univ Massachusetts, Dept Phys, Dartmouth, MA 02747 USA
[2] Georgia Gwinnett Coll, Sch Sci & Technol, Lawrenceville, GA 30043 USA
关键词
BLUE-SHEET; SINGULARITY;
D O I
10.1103/PhysRevD.98.104024
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We solve the 2 + 1-dimensional Teukolsky equation numerically for the Weyl scalars psi(0) and psi(4) along a time-like geodesic approaching the Cauchy horizon of a rapidly rotating perturbed Kerr black hole. We find that both the amplitude and frequency of the Weyl scalars agree with the results of linear perturbation analysis. We then model a physical object by a simple damped harmonic oscillator, which is driven by an external force that mimics the tidal force experienced by the infalling object. We use this model to find the total deformation of the object at the Cauchy horizon, and the resonant effect when the driving force's frequency matches the internal frequency of the oscillator that models the object.
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页数:8
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