6533b85bfe1ef96bd12ba282
RESEARCH PRODUCT
New method to observe gravitational waves emitted by core collapse supernovae
P. AstoneC. PalombaPablo Cerdá-duránF. RicciI. Di PalmaF. MuciacciaM. Dragosubject
Physics010308 nuclear & particles physicsGravitational waveAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)AstrophysicsType II supernova01 natural sciencesSignalGeneral Relativity and Quantum CosmologyLIGOGravitational wavesGravitational waves; SupernovaeGeneral Relativity and Quantum CosmologySupernovaNeutron starSupernovaeBinary black hole0103 physical sciencesKAGRAAstrophysics - Instrumentation and Methods for AstrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)010303 astronomy & astrophysicsdescription
While gravitational waves have been detected from mergers of binary black holes and binary neutron stars, signals from core collapse supernovae, the most energetic explosions in the modern Universe, have not been detected yet. Here we present a new method to analyse the data of the LIGO, Virgo, and KAGRA network to enhance the detection efficiency of this category of signals. The method takes advantage of a peculiarity of the gravitational wave signal emitted in the core collapse supernova and it is based on a classification procedure of the time-frequency images of the network data performed by a convolutional neural network trained to perform the task to recognize the signal. We validate the method using phenomenological waveforms injected in Gaussian noise whose spectral properties are those of the LIGO and Virgo advanced detectors and we conclude that this method can identify the signal better than the present algorithm devoted to select gravitational wave transient signal.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-12-13 |