Speaker
Neil Lu
(Australian National University)
Description
The post-merger stage of a binary black hole coalescence is known as "ringdown", when the remnant settles into a stable state through the emission of quasi-normal modes. Analyzing ringdown signals from gravitational-wave events offers a powerful test of general relativity in the strong-field regime and provides an independent consistency check on the full waveform analysis. In this talk, I will present new results from the fourth LIGO-Virgo-KAGRA observing run, highlight particularly informative events, and discuss the unique insights obtained specifically from ringdown observations.
Author
Neil Lu
(Australian National University)
