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Initial data and eccentricity reduction toolkit for binary black hole numerical relativity waveforms
Classical and Quantum Gravity ( IF 3.5 ) Pub Date : 2021-05-13 , DOI: 10.1088/1361-6382/abe691
Sarah Habib 1, 2 , Antoni Ramos-Buades 3 , E A Huerta 1, 4, 5, 6, 7 , Sascha Husa 8 , Roland Haas 1 , Zachariah Etienne 9, 10
Affiliation  

The production of numerical relativity waveforms that describe quasi-circular binary black hole mergers requires high-quality initial data, and an algorithm to iteratively reduce residual eccentricity. To date, these tools remain closed source, or in commercial software that prevents their use in high performance computing platforms. To address these limitations, and to ensure that the broader numerical relativity community has access to these tools, herein we provide all the required elements to produce high-quality numerical relativity simulations in supercomputer platforms, namely: open source parameter files to numerically simulate spinning black hole binaries with asymmetric mass-ratios; open source Python tools to produce high-quality initial data for numerical relativity simulations of spinning black hole binaries on quasi-circular orbits; and open source Python tools for eccentricity reduction, both as stand-alone software and also deployed in the Einstein Toolkit’s software infrastructure. This open source toolkit fills in a void in the literature at a time when numerical relativity has an ever increasing role in the study and interpretation of gravitational wave sources. As part of our community building efforts, and to streamline and accelerate the use of these resources, we provide tutorials that describe, step by step, how to obtain and use these open source numerical relativity tools.



中文翻译:

二元黑洞数值相对论波形的初始数据和偏心率减少工具包

描述准圆形双黑洞合并的数值相对论波形的产生需要高质量的初始数据和迭代减少残余偏心率的算法。迄今为止,这些工具仍然是封闭源代码,或者是商业软件中阻止它们在高性能计算平台中使用的。为了解决这些限制,并确保更广泛的数值相对论社区可以使用这些工具,我们在此提供了在超级计算机平台上生成高质量数值相对论模拟所需的所有元素,即:开源参数文件以数值模拟旋转黑色具有不对称质量比的孔双星;开源Python为准圆形轨道上自旋黑洞双星的数值相对论模拟生成高质量初始数据的工具;和用于减少偏心的开源Python工具,既可以作为独立软件,也可以部署在Einstein Toolkit的软件基础架构中。在数值相对论在引力波源的研究和解释中的作用越来越大的时候,这个开源工具包填补了文献中的空白。作为我们社区建设工作的一部分,为了简化和加速这些资源的使用,我们提供了教程,逐步描述如何获取和使用这些开源数值相对论工具。

更新日期:2021-05-13
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