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Related papers: Improved analysis of SN1987A antineutrino events

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We present in this paper a public data release of an unprecedentedly-large set of core-collapse supernova (CCSN) neutrino emission models, comprising one hundred detailed 2D-axisymmetric radiation-hydrodynamic simulations evolved out to as…

High Energy Astrophysical Phenomena · Physics 2023-07-19 David Vartanyan , Adam Burrows

MiniBooNE anti-neutrino charged-current quasi-elastic (CCQE) data is compared to model predictions. The main background of neutrino-induced events is examined first, where three independent techniques are employed. Results indicate the…

High Energy Physics - Experiment · Physics 2019-08-13 Joseph Grange

A search for neutrino and antineutrino events correlated with 2,350 gamma-ray bursts (GRBs) is performed with Borexino data collected between December 2007 and November 2015. No statistically significant excess over background is observed.…

Transrelativistic supernovae (SNe), which are likely driven by central engines via jets or winds, have been among candidate sources of ultrahigh-energy cosmic rays (UHECRs). We investigate acceleration and survival of UHECR nuclei in the…

High Energy Astrophysical Phenomena · Physics 2019-11-13 B. Theodore Zhang , Kohta Murase

One- and two-dimensional hydrodynamical simulations of neutrino-driven supernova explosions are discussed. The simulations cover the phase between the stagnation of the prompt shock and about one second after core bounce. Systematic…

Astrophysics · Physics 2016-09-07 H. -Thomas Janka , Ewald Mueller

This is the first of two articles aimed at providing comprehensive predictions for the day-night (D-N) effect for the Super-Kamiokande detector in the case of the MSW $\nu_e \to \numt$ transition solution of the solar neutrino problem. The…

High Energy Physics - Phenomenology · Physics 2009-10-30 Q. Y. Liu , M. Maris , S. T. Petcov

The K2K experiment observes indications of neutrino oscillation: a reduction of $\nu_\mu$ flux together with a distortion of the energy spectrum. Fifty-six beam neutrino events are observed in Super-Kamiokande (SK), 250 km from the neutrino…

High Energy Physics - Experiment · Physics 2009-09-29 K2K Collaboration , M. H. Ahn

We investigate the flux of supernova relic neutrinos (SRN) for several neutrino oscillation models with parameters inferred from recent experimental results. In the calculation, we adopt the realistic {\it time-dependent} supernova density…

Astrophysics · Physics 2010-04-05 Shin'ichiro Ando , Katsuhiko Sato

We present near-infrared spectroscopic observations of SN 1987A covering the period 1358 to 3158 days post-explosion. This is the first time that IR spectra of a supernova have been obtained to such late epochs. The spectra comprise…

Astrophysics · Physics 2009-11-07 A. Fassia , W. P. S. Meikle , J. Spyromilio

Neutrinos, being massive, can decay. A heavier neutrino could decay into a lighter one and a massless scalar or pseudoscalar boson, such as the Majoron. Two-body non-radiative decay could occur in dense matter, such as in the inner dense…

High Energy Physics - Phenomenology · Physics 2025-07-30 Pilar Iváñez-Ballesteros , M. Cristina Volpe

We investigate in this paper the core-collapse supernova explosion mechanism in both one and two dimensions. We verify the usefulness of neutrino-driven overturn (``convection'') between the shock and the neutrinosphere in igniting the…

Astrophysics · Physics 2009-10-28 Adam Burrows , John Hayes , Bruce Fryxell

The seven seconds' gap in the Kamiokande-II SN1987A neutrino data is reexamined.

High Energy Astrophysical Phenomena · Physics 2022-02-07 Yuichi Oyama

The smallest of the four detectors which claim to have observed neutrinos from SN 1987a registered the events more than 4 h earlier than the other three ones. This claim is not usually accepted because it is difficult to understand that the…

High Energy Astrophysical Phenomena · Physics 2015-09-02 Gerd Schatz

Supernova explosions provide the most sensitive probes of neutrino propagation, such as the possibility that neutrino velocities might be affected by the foamy structure of space-time thought to be generated by quantum-gravitational (QG)…

High Energy Physics - Phenomenology · Physics 2015-05-30 John Ellis , Hans-Thomas Janka , Nikolaos E. Mavromatos , Alexander S. Sakharov , Edward K. G. Sarkisyan

The induced gravitational collapse (IGC) paradigm of long gamma-ray bursts (GRBs) associated with supernovae (SNe) predicts a copious neutrino-antineutrino ($\nu\bar{\nu}$) emission owing to the hypercritical accretion process of SN ejecta…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Laura Becerra , Marcelo M. Guzzo , Fernando Rossi-Torres , Jorge A. Rueda , Remo Ruffini , Juan D. Uribe

ISO/SWS observations of SN 1987A on day 3425 show no emission in [Fe I] 24.05 microns and [Fe II] 25.99 microns down to the limits of roughly 0.39 Jy and 0.64 Jy, respectively. Assuming a homogeneous distribution of Ti-44 inside 2000 km/s…

Astrophysics · Physics 2009-11-06 P. Lundqvist , C. Kozma , J. Sollerman , C. Fransson

Following the coalescence of binary neutron stars, debris from the merger which remains marginally bound to the central compact remnant will fallback at late times, feeding a sustained accretion flow. Unbound winds or a wide-angle jet from…

High Energy Astrophysical Phenomena · Physics 2020-04-29 Valentin Decoene , Claire Guépin , Ke Fang , Kumiko Kotera , Brian David Metzger

We present new results from the only 2D multi-group, multi-angle calculations of core-collapse supernova evolution. The first set of results from these calculations was published in Ott et al. (2008). We have followed a nonrotating and a…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Timothy D. Brandt , Adam Burrows , Christian D. Ott , Eli Livne

The sensitivity of current and future neutrino detectors like Super-Kamiokande (SK), JUNO, Hyper-Kamiokande (HK), and DUNE is expected to allow for the detection of the diffuse supernova neutrino background (DSNB). However, the DSNB model…

High Energy Astrophysical Phenomena · Physics 2024-11-15 Nick Ekanger , Shunsaku Horiuchi , Hiroki Nagakura , Samantha Reitz

During the first few days after explosion, Type II supernovae (SNe) are dominated by relatively simple physics. Theoretical predictions regarding early-time SN light curves in the ultraviolet (UV) and optical bands are thus quite robust. We…

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