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Core-collapse supernovae can be a copious source of sterile neutrinos, hypothetical particles that mix with active neutrinos. We develop two-dimensional stellar core-collapse models that incorporate the mixing between tau neutrinos and…

High Energy Astrophysical Phenomena · Physics 2024-06-17 Kanji Mori , Tomoya Takiwaki , Kei Kotake , Shunsaku Horiuchi

We return to interpreting the historical SN~1987A neutrino data from a modern perspective. To this end, we construct a suite of spherically symmetric supernova models with the Prometheus-Vertex code, using four different equations of state…

High Energy Astrophysical Phenomena · Physics 2024-02-26 Damiano F. G. Fiorillo , Malte Heinlein , Hans-Thomas Janka , Georg Raffelt , Edoardo Vitagliano , Robert Bollig

Development of large mass detectors for low-energy neutrinos and dark matter may allow supernova detection via neutrino-nucleus elastic scattering. An elastic-scattering detector could observe a few, or more, events per ton for a galactic…

Astrophysics · Physics 2009-11-07 C. J. Horowitz , K. J. Coakley , D. N. McKinsey

The multi-messenger observation of the next galactic core-collapse supernova will shed light on the different physical processes involved in these energetic explosions. Good timing and pointing capabilities of neutrino detectors would help…

High Energy Astrophysical Phenomena · Physics 2020-09-18 Alexis Coleiro , Marta Colomer Molla , Damien Dornic , Massimiliano Lincetto , Vladimir Kulikovskiy

A new method to study the effects of neutrino masses on a supernova neutrino signal is proposed. The method relies exclusively on the analysis of the full statistics of neutrino events, it is independent of astrophysical assumptions, and…

Astrophysics · Physics 2009-11-10 Enrico Nardi , Jorge I. Zuluaga

By adopting a state-of-the-art parameterized model of electron antineutrino emission, we have made some steps forward in the analysis of the thermodynamical properties and temporal structure of neutrino emission from core collapse SN1987A.…

High Energy Physics - Phenomenology · Physics 2025-01-20 Riccardo Maria Bozza , Vigilante di Risi , Giuseppe Matteucci , Veronica Oliviero , Giulia Ricciardi , Francesco Vissani

Neutrinos are unique probes of core-collapse supernova dynamics, especially in the case of black hole (BH) forming stellar collapses, where the electromagnetic emission may be faint or absent. By investigating two 3D hydrodynamical…

High Energy Astrophysical Phenomena · Physics 2020-07-01 Laurie Walk , Irene Tamborra , Hans-Thomas Janka , Alexander Summa , Daniel Kresse

Heavy sterile neutrinos with masses ${\mathcal O}(100)$ MeV mixing with active neutrinos can be produced in the core of a collapsing supernova (SN). In order to avoid an excessive energy loss, shortening the observed duration of the SN…

High Energy Physics - Phenomenology · Physics 2020-01-07 Leonardo Mastrototaro , Alessandro Mirizzi , Pasquale Dario Serpico , Arman Esmaili

The coherent contribution of all neutrons in neutrino nucleus scattering due to the neutral current offers a realistic prospect of detecting supernova neutrinos. For a typical supernova at 10 kpc, about 1000 events are expected using a…

High Energy Physics - Phenomenology · Physics 2011-07-19 J. D. Vergados , Y. Giomataris

Neutrinos emitted during the collapse, bounce and subsequent explosion provide information about supernova dynamics. The neutrino spectra are determined by weak interactions with nuclei and nucleons in the inner regions of the star, and…

Astrophysics · Physics 2009-12-15 S. R. Souza , A. W. Steiner , W. G. Lynch , R. Donangelo , M. A. Famiano

Core-collapse supernovae emit of order $10^{58}$ neutrinos and antineutrinos of all flavors over several seconds, with average energies of 10--25 MeV. In the Sudbury Neutrino Observatory (SNO), which begins operations this year, neutrinos…

High Energy Physics - Phenomenology · Physics 2016-08-25 J. F. Beacom , P. Vogel

Neutrinos and gravitational waves are the only direct probes of the inner dynamics of a stellar core collapse. They are also the first signals to arrive from a supernova and, if detected, establish the moment when the shock wave is formed…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-08 Matthew D. Kistler , Wick C. Haxton , Hasan Yuksel

Supernovae emit large fluxes of neutrinos which can be detected by detectors on Earth. Future tonne-scale detectors will be sensitive to several neutrino interaction channels, with thousands of events expected if a supernova emerges in the…

Instrumentation and Methods for Astrophysics · Physics 2022-07-06 O. I. González-Reina , J. Rumleskie , E. Vázquez-Jáuregui

The current supernova detection technique used in IceCube relies on the sudden deviation of the summed photomultiplier noise rate from its nominal value during the neutrino burst, making IceCube a $\approx 3$ Megaton effective detection…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 L. Demiroers , M. Ribordy , M. Salathe

A core-collapse supernova (SN) offers an excellent astrophysical laboratory to test non-zero neutrino magnetic moments. In particular, the neutronization burst phase, which lasts for few tens of milliseconds post-bounce, is dominated by…

High Energy Physics - Phenomenology · Physics 2022-10-12 Sudip Jana , Yago P Porto-Silva , Manibrata Sen

A nascent neutron star resulting from stellar collapse is a prodigious source of neutrinos of all flavors. While the most basic features of this neutrino emission can be estimated from simple considerations, the detailed simulation of the…

Astrophysics · Physics 2008-11-26 Christian Y. Cardall

Based on the gravitational collapse time-scale is larger than the weak interaction time-scale at core densities $\rho > 10^{11} {gr}/ {cm}^{3}$, we approximately use the $\beta$-equilibrium condition and particle number conservations to…

High Energy Astrophysical Phenomena · Physics 2012-06-05 R. Mohammadi , Remo Ruffini , She-Sheng Xue

The neutrino signal from SN1987A confirmed the core-collapse scenario and the possible formation of a neutron star. Although this compact object has eluded all observations, theoretical and numerical developments have allowed a glimpse of…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Nissim Fraija , Cristian G. Bernal , A. M. Hidalgo-Gamez

The e- and e+ energy spectra from the SN1987A Supernova neutrino burst interactions are calculated and compared to the observed spectra in Kamiokande-II and IMB experiments. Neutrino oscillations in Supernova and regeneration effects in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Bekman , J. Holeczek , J. Kisiel

We study the sensitivity to neutrino masses of a Galactic supernova neutrino signal as could be measured with the detectors presently in operation and with future large volume water \v{C}erencov and scintillator detectors. The analysis uses…

Astrophysics · Physics 2007-05-23 Jorge I. Zuluaga