Reconstructing gravitational wave core-collapse supernova signals with dynamic time warping
Sofia Suvorova, Jade Powell, Andrew Melatos
Physical Review D - Particles, Fields, Gravitation and Cosmology | American Physical Society | Published : 2019
Core-collapse supernovae (CCSNe) are a potential source for ground-based gravitational wave detectors, as their predicted emission peaks in the detectors’ frequency band. Typical searches for gravitational wave bursts reconstruct signals using wavelets. However, as CCSN signals contain multiple complex features in the time-frequency domain, these techniques often struggle to reconstruct the entire signal. An alternative method developed in recent years involves applying principal component analysis (PCA) to a set of simulated CCSN models. This technique enables model selection between astrophysical CCSN models as well as waveform reconstruction. However, PCA faces its own difficulties, such ..View full abstract
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Awarded by Australian Research Council Centre of Excellence for Gravitational Wave Discovery
We thank Ik Siong Heng for useful discussions related to this work. The authors are supported by the Australian Research Council Centre of Excellence for Gravitational Wave Discovery (OzGrav), through Project No. CE170 100004.