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Multi-dimensional hydrodynamic simulations of the post-bounce evolution of collapsed stellar iron cores have demonstrated that convective overturn between the stalled shock and the neutrinosphere can have an important effect on the…

Astrophysics · Physics 2007-05-23 H. -Th. Janka

Neutrino flow is the dominant mechanism of energy transfer in the latest stages of supernovae explosions and in compact stars. The Standard Model of particle physics and accelerator data, provide a satisfactory description of neutrino…

Solar and Stellar Astrophysics · Physics 2012-12-27 Andrea Cipollone

Neutrinos from a Galactic core collapse supernova can undergo elastic scattering with electrons in xenon atoms in liquid xenon based dark matter detectors giving rise to electrons of kinetic energy up to a few MeV. We calculate the…

High Energy Physics - Phenomenology · Physics 2024-01-22 Pijushpani Bhattacharjee , Kamales Kar

Neutrinos and antineutrinos of all three flavours are emitted during the post bounce phase of a core collapse supernova with $\numu/\nutau (\anumu/\anutau)$ having average energies more than that of $\nue(\anue)$. They can be detected by…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sandhya Choubey , Debasish Majumdar , Kamales Kar

We discuss the prospects for improved upper limits on neutrino masses that may be provided by a core-collapse supernova explosion in our galaxy, if it exhibits time variations in the neutrino emissions on the scale of a few milliseconds as…

High Energy Physics - Phenomenology · Physics 2013-05-30 John Ellis , Hans-Thomas Janka , Nikolaos E. Mavromatos , Alexander S. Sakharov , Edward K. G. Sarkisyan

It is demonstrated using Monte Carlo simulation that in different nucleus$-$nucleus collision samples, the increase of the fluctuation of event factorial moments with decreasing phase space scale, called erraticity, is still dominated by…

High Energy Physics - Phenomenology · Physics 2009-11-07 Liu Fuming , Liao Hongbo , Liu Ming , Liu Feng , Liu Lianshou

In this review, the effect of flavor oscillations on the neutrinos released during supernova explosion after core collapse is described. In some scenarios there are large enhancement of the number of events compared to the no oscillation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sandhya Choubey , Kamales Kar

Recent multi-dimensional simulations of core-collapse supernovae are producing successful explosions and explosion-energy predictions. In general, the explosion-energy evolution is monotonic and relatively smooth, suggesting a possible…

High Energy Astrophysical Phenomena · Physics 2021-09-20 Mariam Gogilashvili , Jeremiah W. Murphy , Quintin Mabanta

Neutrinos produced during the collapse of a massive star are trapped in a nuclear medium (the proto-neutron star). Typically, neutrino energies (10-100 MeV) are of the order of nuclear giant resonances energies. Hence, neutrino propagation…

Nuclear Theory · Physics 2009-11-07 J. Margueron , J. Navarro , N. Van Giai

During supernova core collapse and bounce resonant active-to-active, as well as active-to-sterile, neutrino ($\nu$) oscillations can take place. Over this phase weak magnetism increases antineutrino mean free paths, and thus its luminosity.…

Astrophysics · Physics 2011-05-24 Herman J. Mosquera Cuesta , Karen Fiuza

We perform a series of simplified numerical experiments to explore how rotation impacts on the three-dimensional (3D) hydrodynamics of core-collapse supernovae. For the sake of our systematic study, we employ a light-bulb scheme to trigger…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Ko Nakamura , Takami Kuroda , Tomoya Takiwaki , Kei Kotake

To date, detailed core-collapse supernova simulations have not succeeded in elucidating the explosion mechanism. But whatever the mechanism turns out to be, there will be a neutrino-heated outflow between the hot, newly-born neutron star…

Astrophysics · Physics 2015-06-24 Christian Y. Cardall

The neutrino annihilation is one of the most promising candidates for the jet production process of gamma-ray bursts. Although neutrino interaction rates depend strongly on the neutrino spectrum, the estimations of annihilation rate have…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Yudai Suwa

In a nuclear medium, spin-dependent forces cause the nucleon spins to fluctuate with a rate $\Gamma_\sigma$. We have previously shown that as a consequence the effective axial-current neutrino-nucleon scattering cross section is reduced.…

Astrophysics · Physics 2011-05-12 G. Raffelt , D. Seckel , G. Sigl

We provide the time series and angular distributions of the neutrino and gravitational-wave emissions of eleven state-of-the-art three-dimensional non-rotating core-collapse supernova models and explore correlations between these signatures…

High Energy Astrophysical Phenomena · Physics 2019-08-23 David Vartanyan , Adam Burrows , David Radice

The current picture of the collapse and explosion of massive stars and the formation of neutron stars is reviewed. According to the favored scenario, however by no means proven and undisputed, neutrinos deposit the energy of the explosion…

Astrophysics · Physics 2010-11-19 H. -Th. Janka , K. Kifonidis , M. Rampp

New effects of nontrivial neutrino electromagnetic properties are investigated on the basis of exact solutions of the modified Dirac equations for neutrinos in dense magnetized rotating matter. The effect of spatial separation of different…

High Energy Physics - Phenomenology · Physics 2014-06-11 Alexander Studenikin , Ilya Tokarev

Core-collapse supernovae are among the most powerful explosions in the universe, emitting thermal neutrinos that carry away the majority of the gravitational binding energy released. These neutrinos create a diffuse supernova neutrino…

High Energy Astrophysical Phenomena · Physics 2025-10-09 Shin'ichiro Ando , Nick Ekanger , Shunsaku Horiuchi , Yusuke Koshio

We study the impact of non-standard momentum distributions of cosmic neutrinos on the anisotropy spectrum of the cosmic microwave background and the matter power spectrum of the large scale structure. We show that the neutrino distribution…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-30 Isabel M. Oldengott , Gabriela Barenboim , Sarah Kahlen , Jordi Salvado , Dominik J. Schwarz

I analyse recent three-dimensional hydrodynamical simulations of exploding core collapse supernovae (CCSNe) and find that a rapid increase in the diagnostic explosion energy occurs parallel to, or very shortly after, the accretion of gas…

High Energy Astrophysical Phenomena · Physics 2019-08-01 Noam Soker
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