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arXiv 1206.3015gr-qc
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不等质量黑洞双星的谱方法模拟

Simulations of non-equal mass black hole binaries with spectral methods

Luisa T. Buchman, Harald P. Pfeiffer, Mark A. Scheel, Bela Szilagyi

摘要:

本文介绍用伪谱方法模拟不等质量非自旋黑洞双星的技术和结果。具体地说,我们开发了一个有效的根的过程,以确保黑洞的初始数据具有所需的质量和自旋,我们扩展了双坐标框架方法和偏心去除非对称双星。此外,我们描述的技术来模拟合并的质量不等的黑洞。本文的第二部分介绍了非旋转的黑洞双星的质量比为2,3,4和6,覆盖15和22轨道,合并和衰荡的数值模拟。我们讨论了这些模拟的准确性,(最初为零)黑洞自旋的演变,和剩余的黑洞属性。

英文摘要:

This paper presents techniques and results for simulations of unequal mass, non-spinning black hole binaries with pseudo-spectral methods. Specifically, we develop an efficient root-finding procedure to ensure the black hole initial data have the desired masses and spins, we extend the dual coordinate frame method and eccentricity removal to asymmetric binaries. Furthermore, we describe techniques to simulate mergers of unequal mass black holes. The second part of the paper presents numerical simulations of non-spinning black hole binaries with mass ratios 2, 3, 4 and 6, covering between 15 and 22 orbits, merger and ringdown. We discuss the accuracy of these simulations, the evolution of the (initially zero) black hole spins, and the remnant black hole properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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