Supernova Model Discrimination with Hyper-Kamiokande

Abe, K, Adrich, P, Aihara, H, Akutsu, R, Alekseev, I, Ali, A, Ameli, F, Anghel, I, Anthony, LHV, Antonova, M
et al (show 490 more authors) (2021) Supernova Model Discrimination with Hyper-Kamiokande. ASTROPHYSICAL JOURNAL, 916 (1). 15-.

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Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants -- neutron stars and black holes -- are interesting astrophysical objects in their own right. However, despite millennia of observations and almost a century of astrophysical study, the explosion mechanism of core-collapse supernovae is not yet well understood. Hyper-Kamiokande is a next-generation neutrino detector that will be able to observe the neutrino flux from the next galactic core-collapse supernova in unprecedented detail. We focus on the first 500 ms of the neutrino burst, corresponding to the accretion phase, and use a newly-developed, high-precision supernova event generator to simulate Hyper-Kamiokande's response to five different supernova models. We show that Hyper-Kamiokande will be able to distinguish between these models with high accuracy for a supernova at a distance of up to 100 kpc. Once the next galactic supernova happens, this ability will be a powerful tool for guiding simulations towards a precise reproduction of the explosion mechanism observed in nature.

Item Type: Article
Additional Information: 21 pages, 7 figures. Article based on thesis published as arXiv:2002.01649. v2: added references and some explanations in response to reviewer comments
Uncontrolled Keywords: astro-ph.IM, astro-ph.IM, astro-ph.HE, hep-ex, physics.ins-det
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 04 Oct 2021 16:10
Last Modified: 18 Jan 2023 21:27
DOI: 10.3847/1538-4357/abf7c4
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