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Oct 20 – 24, 2025
Institut Pascal
Europe/Paris timezone

Latency and accuracy of the reconstruction of the gravitational wave signal in Virgo

Oct 21, 2025, 9:45 AM
15m
Amphitheater + Cathedrale+ Offices (Institut Pascal)

Amphitheater + Cathedrale+ Offices

Institut Pascal

Rue André Rivière 91400 Orsay

Speaker

Didier Verkindt (LAPP-CNRS)

Description

Since Virgo joined the O4 run in April 2024, the h(t) strain signal that may contain any gravitational wave signal has been reconstructed with a 2% accuracy in the 20-2000 Hz frequency band thanks to a good estimation of the interferometer optical response and the construction of accurate models of the mirrors actuators. I will present this h(t) reconstruction and how its current improvements, especially the reduction of its latency down below 2 seconds, may impact the transient detections in the futur O5 run.

Presentation materials