学术沙龙（4月18日 周四 16：00-17：30）

主持人： 贺远强 副教授

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【报告摘要】

We investigate the prospects of detecting gravitational waves from coalescing massive black hole binaries in the Universe with the TianQin observatory, a space-based gravitational wave interferometer proposed to be launched in the 2030s. To frame the scientific scope of the mission, in this paper we carry out a preliminary estimation of the signal-to-noise ratio, detection rate and parameter estimation precision of the massive black hole binaries detectable by TianQin. In order to make our results as robust as possible, we consider several models of the growth history of massive black holes, exploring the effect of some key astrophysical prescriptions as well the impact of the employed computational methods. In the most optimistic model, TianQin can detect as many as ∼ 60 mergers per year. If TianQin detects a merger at redshift of 15, it will be capable of estimating its luminosity distance to within an accuracy of 10%; for a nearby event at redshift ∼ 2, TianQin can issue early warnings 24 hours before coalescence, with a timing accuracy of around an hour and a sky localization ability of ∼ 10 square degrees, thus enabling multi-messenger observations.

【个人简介】

胡一鸣博士于2011年毕业于南京大学天文系，同年赴笈英国格拉斯哥大学。于2015年取得博士学位。15至16年间在德国马普引力所成为博士后，16至17年在清华大学当博士后。2017年5月份加入中山大学珠海校区物理与天文学院出任副教授。胡教授的研究领域主要为引力波，引力波数据处理，引力波天文学与多信使天文学。作为LIGO科学合作组织的成员，参与了LIGO的数据处理，研究方向涵盖了致密双星并合，连续引力波源和电磁跟踪观测。加入天琴中心后，同时开展多波段引力波天文学的研究。