论文标题

二进制中子星星合并的电磁随访观察,并发出了decihertz重力波观测的早期警告

Electromagnetic Follow-up Observations of Binary Neutron Star Mergers with Early Warnings from Decihertz Gravitational-wave Observatories

论文作者

Kang, Yacheng, Liu, Chang, Shao, Lijing

论文摘要

我们在Decihertz引力波(GW)观测值的早期警告的帮助下,研究了电磁随访观测值的前景,B-Decigo和Do-Ofimal。扩展了先前的工作,我们不仅对不同的$γ$ ray卫星和BNS人口模型进行了快速评估,还可以对具有不同限制障碍的测量望远镜进行多频段Kilonova检测的分析和结果进行详细介绍。在DECIHERTZ GW观测值的假定为期4年的任务时间中,我们发现,对于电磁随访的目标,DO-Oxtimal在检测率上的表现优于B整体,并且对于关节SGRB/KILONOVA搜索的可检测距离较大。以BNS合并的对数非正态分子模型为例,我们讨论了与电磁设施和Decihertz GW检测器的各种协同观测的红移分布的准确性,并讨论了红移分布的准确性。根据我们的分析,我们提出了一种可行的“等待”模式,作为一种新的检测模式,用于未来的多通信天体物理学。

We investigate the prospects of electromagnetic follow-up observations for binary neutron star (BNS) mergers, with the help of early warnings from decihertz gravitational-wave (GW) observatories, B-DECIGO and DO-Optimal. Extending the previous work, we not only give quick assessments of joint short $γ$-ray burst (sGRB) detection rates for different $γ$-ray satellites and BNS population models, but also elaborate on the analyses and results on multi-band kilonova detections for survey telescopes with different limiting magnitudes. During an assumed 4-year mission time for decihertz GW observatories, we find that for the goals of electromagnetic follow-ups, DO-Optimal performs better than B-DECIGO as a whole on the detection rate, and has a larger detectable distance for joint sGRB/kilonova searches. Taking the log-normal population model for BNS mergers and a one-day early-warning time as an example, we discuss the accuracy in localization and timing, as well as the redshift distributions for various synergy observations with electromagnetic facilities and decihertz GW detectors. Based on our analyses, we propose a feasible "wait-for" pattern as a novel detecting mode for future multi-messenger astrophysics.

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