# Core-collapse supernova neutrino emission and detection informed by state-of-The-Art three-dimensional numerical models

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

## Abstract

Based on our recent three-dimensional core-collapse supernova (CCSN) simulations including both exploding and non-exploding models, we study the detailed neutrino signals in representative terrestrial neutrino observatories, namely Super-Kamiokande (Hyper-Kamiokande), DUNE, JUNO, and IceCube. We find that the physical origin of difference in the neutrino signals between 1D and 3D is mainly proto-neutron-star convection. We study the temporal and angular variations of the neutrino signals and discuss the detectability of the time variations driven by the spiral standing accretion shock instability (spiral SASI) when it emerges for non-exploding models. In addition, we determine that there can be a large angular asymmetry in the event rate (${\gtrsim} 50 {{\ \rm per\ cent}}$), but the time-integrated signal has a relatively modest asymmetry (${\lesssim} 20 {{\ \rm per\ cent}}$). Both features are associated with the lepton-number emission self-sustained asymmetry and the spiral SASI. Moreover, our analysis suggests that there is an interesting correlation between the total neutrino energy (TONE) and the cumulative number of neutrino events in each detector, a correlation that can facilitate data analyses of real observations. We demonstrate the retrieval of neutrino energy spectra for all flavours of neutrino by applying a novel spectrum reconstruction technique to the data from multiple detectors. We find that this new method is capable of estimating the TONE within the error of ∼20 per cent if the distance to the CCSN is 6 kpc.

Original language English (US) 696-717 22 Monthly Notices of the Royal Astronomical Society 500 1 https://doi.org/10.1093/mnras/staa2691 Published - Jan 1 2021

## All Science Journal Classification (ASJC) codes

• Astronomy and Astrophysics
• Space and Planetary Science

## Keywords

• neutrinos
• supernovae: general

## Fingerprint

Dive into the research topics of 'Core-collapse supernova neutrino emission and detection informed by state-of-The-Art three-dimensional numerical models'. Together they form a unique fingerprint.