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UID:88202e3d3c9e58f58edd5f322aaf12fe
DTSTAMP:20260606T112048Z
SUMMARY:Particle Cosmology Seminar
DESCRIPTION:Speaker: Massimo Vaglio\n \nBlack Hole Ringdown Modeling and W
 aveform Accuracy for LISA Observations\nGravitational wave signals from co
 alescing binary black holes culminate in the ringdown phase\, where the ne
 wly formed\, perturbed black hole emits gravitational radiation as it sett
 les into a stable configuration. This radiation is well described by a sup
 erposition of quasi-normal modes (QNMs)\, each associated with a character
 istic complex frequency. Accurate modeling of the ringdown is crucial for 
 precise measurement of binary parameters\, offering valuable insights into
  both astrophysical processes and fundamental physics. As next-generation 
 space-based detectors like LISA will detect black hole mergers with high s
 ignal-to-noise ratios\, even small modeling inaccuracies could introduce s
 ignificant biases\, potentially limiting the scientific return. In this ta
 lk\, I will explore the impact of limiting the number of QNMs included in 
 ringdown waveform for massive black hole binaries observed by LISA. I will
  discuss the mode hierarchy\, providing an estimate for the minimum number
  of QNMs which is required to ensure unbiased parameter estimation across 
 a wide region of the relevant parameter space.
URL:https://www.imperial.ac.uk/events/193586/particle-cosmology-seminar-20/
DTSTART;TZID=Europe/London:20250613T120000
DTEND;TZID=Europe/London:20250613T130000
LOCATION:503\, Huxley Building\, South Kensington Campus\, Imperial College
  London\, London\, SW7 2AZ\, United Kingdom
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