Quasispherical approximation for rotating black holes
Quasispherical approximation for rotating black holes
复制标题
旋转黑洞的准球近似
DOI:
--
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
S. Hayward
中科院分区:
文献类型:
--
作者:
H. Shinkai;S. Hayward
shinkai@gravity.phys.psu.edu, hayward@gravity.phys.psu.eduCentre for Gravitational Physics and Geometry, 104 Davey Laboratory, The Pennsylvania State University,University Park, PA 16802-6300, U.S.A.(October 9, 2000 revised version gr-qc/0008075)We numerically implement a quasi-spherical approximation scheme for computing gravitationalwaveforms for coalescing black holes, testing it against angular momentum by applying it to Kerrblack holes. As error measures, we take the conformal strain and specific energy due to spuriousgravitational radiation. The strain is found to be monotonic rather than wavelike. The specificenergy is found to be at least an order of magnitude smaller than the 1% level expected from typicalblack-hole collisions, for angular momentum up to at least 70% of the maximum, for an initialsurface as close as r = 3m.PACS numbers: 04.25.-g, 04.25.Dm, 04.70.Bw, 04.20.Ha, 04.30.-wPreprint numbers: gr-qc/0008075, CGPG-00/8-1I. INTRODUCTION