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ORAC-NT: A Template-Free Dual-Channel Detector for Gravitational Wave Transients

descriptionPublicationkeyboard_double_arrow_right Preprint 01 May 2026Publisher:Zenodo
Authors: Kretski, Dimitar;

doi: 10.5281/zenodo.19936540 , 10.5281/zenodo.19959346 , 10.5281/zenodo.19937308 , 10.5281/zenodo.19938023 , 10.5281/zenodo.19935461 , 10.5281/zenodo.19935460

ORAC-NT: A Template-Free Dual-Channel Detector for Gravitational Wave Transients

Abstract

We present ORAC-NT, a dual-channel anomaly detector for gravitational wave strain data operating without waveform templates. The detector combines RMS energy (sensitive to BBH impulsive signals) and the ORAC H energy-entropy metric (sensitive to BNS extended signals). Validated on GW150914 and GW170817 from LIGO GWOSC data.GW150914 detected via RMS at t=+0.010s; GW170817 detected via ORAC H at t=-0.260s.

Keywords

GW170817, gravitational waves, anomaly detection, template-free detection, GW150914, LIGO, anomaly detection, PyCBC

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average