Bulletin of the American Physical Society
2024 APS April Meeting
Wednesday–Saturday, April 3–6, 2024; Sacramento & Virtual
Session E00: Poster Session I & Welcome Reception (5:30PM - 7:30PM PT)
5:30 PM,
Wednesday, April 3, 2024
SAFE Credit Union Convention Center
Room: Exhibit Hall A, Floor 1
Sponsoring
Unit:
APS
Abstract: E00.00025 : Searching for gravitational waves from precessing binaries
Presenter:
Stefano Schmidt
(NIKHEF)
Authors:
Stefano Schmidt
(NIKHEF)
Sarah Caudill
(University of Massachusetts Dartmouth)
However, detecting precessing signals poses a highly non-trivial challenge, as standard matched filtering pipelines for GW searches rely on several assumptions that do not hold in the precessing case.
We describe the new search statistics and the new signal consistency test implemented in the GstLAL pipeline to facilitate the search for precessing binary black hole (BBH) signals.
The benefits of the upgrades are assessed by comparing the sensitive volume of a precessing search against two corresponding ``standard" aligned spin searches. While no significant sensitivity improvement is observed for mildly precessing signals, a volume increase of up to 100% is attainable for heavily precessing asymmetric systems with large misaligned spins.
Finally, we discuss some preliminary results from a large scale search on the publicly available O3 interferometer data, targeting heavily precessing systems that have never been detected before.
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