论文标题
天然气天文台的科学:恒星质量二进制黑洞的初步结果
Science with the TianQin observatory: Preliminary results on stellar-mass binary black holes
论文作者
论文摘要
我们研究使用天气检测恒星质量二元黑洞(SBBHS)的前景。我们使用五个不同的人群模型估算了SBBH Insprals上的预期检测数以及参数估计的精度。我们注意到天气可以检测到一些SBBH灵感,其信号与噪声比大于12;降低阈值并组合多个检测器都可以提高检测数。对于检测阈值以上的大多数事件,可以很好地恢复源参数。 For example, the precision of the merger time most likely occurs near 1s, making it possible to guide the detection of the ground-based detectors, the precision of the eccentricity $e_0$ most likely occurs near $10^{-4}$, making it possible to distinguish the formation channels, and the precision of the mass parameter is better than $10^{-6}$ in general and most likely occurs near $10^{-7}$.我们特别注意到,对于典型的合并事件,误差量可能只有足够小,仅包含宿主星系,这可以极大地有助于通过多中间器观察研究引力波宇宙学和相关研究。
We study the prospect of using TianQin to detect stellar-mass binary black holes (SBBHs). We estimate the expected detection number as well as the precision of parameter estimation on SBBH inspirals, using five different population models. We note TianQin can possibly detect a few SBBH inspirals with signal to noise ratios greater than 12; lowering the threshold and combining multiple detectors can both boost the detection number. The source parameters can be recovered with good precision for most events above the detection threshold. For example, the precision of the merger time most likely occurs near 1s, making it possible to guide the detection of the ground-based detectors, the precision of the eccentricity $e_0$ most likely occurs near $10^{-4}$, making it possible to distinguish the formation channels, and the precision of the mass parameter is better than $10^{-6}$ in general and most likely occurs near $10^{-7}$. We note, in particular, that for a typical merger event, the error volume is likely to be small enough to contain only the host galaxy, which could greatly help in the study of gravitational wave cosmology and relevant studies through the multimessenger observation.