Ringdown Signals: Data Gaps, Joint Observations, and Theoretical Outlook

19 Oct 2025, 16:50
20m
Lecture Hall, 3rd Floor, Building 7, "Eoc·Economy" Senior Talent Hub(两山高层次人才集聚区-7号楼3层报告中心)

Lecture Hall, 3rd Floor, Building 7, "Eoc·Economy" Senior Talent Hub(两山高层次人才集聚区-7号楼3层报告中心)

Speaker

Junxi Shi

Description

The ringdown phase is one of the most informative stages of gravitational-wave observations, encoding the spacetime properties of the remnant black hole and clues to its formation. Upcoming space-based detectors are expected to greatly increase the number of detectable ringdown events. However, unavoidable data gaps in space missions can substantially affect these short-lived signals. In this talk, we quantify the impact of data gaps on ringdown detection and parameter estimation, and assess how joint observations can mitigate these effects. We conclude with a concise review of recent progress on ringdown studies and an outlook for theory and observation.

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