Determining the core-collapse supernova explosion mechanism with current and future gravitational-wave observatories
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arXiv
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| Format: | Preprint |
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2023
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| author | Powell, Jade Iess, Alberto Llorens-Monteagudo, Miquel Obergaulinger, Martin Müller, Bernhard Torres-Forné, Alejandro Cuoco, Elena Font, José A. |
| author_facet | Powell, Jade Iess, Alberto Llorens-Monteagudo, Miquel Obergaulinger, Martin Müller, Bernhard Torres-Forné, Alejandro Cuoco, Elena Font, José A. |
| contents | Gravitational waves are emitted from deep within a core-collapse supernova, which may enable us to determine the mechanism of the explosion from a gravitational-wave detection. Previous studies suggested that it is possible to determine if the explosion mechanism is neutrino-driven or magneto-rotationally powered from the gravitational-wave signal. However, long duration magneto-rotational waveforms, that cover the full explosion phase, were not available during the time of previous studies, and explosions were just assumed to be magneto-rotationally driven if the model was rapidly rotating. Therefore, we perform an updated study using new 3D long-duration magneto-rotational core-collapse supernova waveforms that cover the full explosion phase, injected into noise for the Advanced LIGO, Einstein Telescope and NEMO gravitational-wave detectors. We also include a category for failed explosions in our signal classification results. We then determine the explosion mechanism of the signals using three different methods: Bayesian model selection, dictionary learning, and convolutional neural networks. The three different methods are able to distinguish between neutrino-driven explosions and magneto-rotational explosions, even if the neutrino-driven explosion model is rapidly rotating. However they can only distinguish between the non-exploding and neutrino-driven explosions for signals with a high signal to noise ratio. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_18221 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Determining the core-collapse supernova explosion mechanism with current and future gravitational-wave observatories Powell, Jade Iess, Alberto Llorens-Monteagudo, Miquel Obergaulinger, Martin Müller, Bernhard Torres-Forné, Alejandro Cuoco, Elena Font, José A. High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology Gravitational waves are emitted from deep within a core-collapse supernova, which may enable us to determine the mechanism of the explosion from a gravitational-wave detection. Previous studies suggested that it is possible to determine if the explosion mechanism is neutrino-driven or magneto-rotationally powered from the gravitational-wave signal. However, long duration magneto-rotational waveforms, that cover the full explosion phase, were not available during the time of previous studies, and explosions were just assumed to be magneto-rotationally driven if the model was rapidly rotating. Therefore, we perform an updated study using new 3D long-duration magneto-rotational core-collapse supernova waveforms that cover the full explosion phase, injected into noise for the Advanced LIGO, Einstein Telescope and NEMO gravitational-wave detectors. We also include a category for failed explosions in our signal classification results. We then determine the explosion mechanism of the signals using three different methods: Bayesian model selection, dictionary learning, and convolutional neural networks. The three different methods are able to distinguish between neutrino-driven explosions and magneto-rotational explosions, even if the neutrino-driven explosion model is rapidly rotating. However they can only distinguish between the non-exploding and neutrino-driven explosions for signals with a high signal to noise ratio. |
| title | Determining the core-collapse supernova explosion mechanism with current and future gravitational-wave observatories |
| topic | High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2311.18221 |