COSMIC Variance in Binary Population Synthesis
COSMIC Variance in Binary Population Synthesis
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DOI：
10.3847/1538-4357/ab9d85
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发表时间：
2019-11
期刊：
影响因子：
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通讯作者：
K. Breivik;S. Coughlin;M. Zevin;C. Rodriguez;K. Kremer;Claire S. Ye;J. Andrews;M. Kurkowski;Matthew C. Digman;S. Larson;F. Rasio
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文献类型：
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作者：
K. Breivik;S. Coughlin;M. Zevin;C. Rodriguez;K. Kremer;Claire S. Ye;J. Andrews;M. Kurkowski;Matthew C. Digman;S. Larson;F. Rasio
双星的形成和演化是天文学多个领域的关键组成部分。引力波天文台最多的来源是吸入或合并致密双星，而双星几乎出现在每次电磁调查中，无论目标群体如何。大型二元星群的模拟既可以预测电磁波源，也可以为引力波源的观测提供信息。二元总体合成是一种平衡物理建模与模拟速度的工具，可在数天的时间尺度上生成大型二元总体。我们提出了一个社区开发的二元群体综合套件 COSMIC，它旨在模拟紧凑对象二元群体及其祖先。作为概念证明，我们模拟了银河系的致密双星群及其可通过激光干涉仪空间天线观测到的引力波信号。
The formation and evolution of binary stars are critical components of several fields in astronomy. The most numerous sources for gravitational wave observatories are inspiraling or merging compact binaries, while binary stars are present in nearly every electromagnetic survey regardless of the target population. Simulations of large binary populations serve to both predict and inform observations of electromagnetic and gravitational wave sources. Binary population synthesis is a tool that balances physical modeling with simulation speed to produce large binary populations on timescales of days. We present a community-developed binary population synthesis suite, COSMIC, which is designed to simulate compact-object binary populations and their progenitors. As a proof of concept, we simulate the Galactic population of compact binaries and their gravitational wave signals observable by the Laser Interferometer Space Antenna.