Jul 11 – 13, 2023
Amsterdam, NL
Europe/Amsterdam timezone

A new method to search for long-duration gravitational wave signals

Jul 11, 2023, 4:00 PM
Amsterdam, NL

Amsterdam, NL

Science Park 904 1098 XH Amsterdam


Liudmila Fesik (Max Planck Institute for Gravitational Physics)


Spinning neutron stars are sources of long-duration continuous waves (CWs) that may be detected by interferometric detectors. We focus on glitching pulsars with abrupt spin-ups and long term spin-down, which imprint in CWs as transient signals from weeks to months. Standart method for identifying transient signals is the match-filtering, which combines a coherent detection statistics over time intervals of different duration. We propose a new method, where the most information from an initial search is considered in order to set up the post-following transient searches. In this method we localise a long-duration signal (longer than a few hours) when the start time and duration of the signal are unknown. We apply the method to search for transient CWs from the frequently glitching pulsar PSR J0537-6910 in the absence of parallel electromagnetic observations of the glitches.

Primary authors

Liudmila Fesik (Max Planck Institute for Gravitational Physics) M. Alessandra Papa (Max Planck Institute for Gravitational Physics)

Presentation materials