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In a core collapse supernova, collective oscillations of neutrinos emitted by the proto-neutron star significantly modifies the partition of energy between different flavors in a way which is potentially important for the nucleosynthesis of…

High Energy Astrophysical Phenomena · Physics 2017-03-29 T. Bulmus , Y. Pehlivan

In this paper we study the dynamics of flavor transformation for neutrinos propagating in the very dense environment of astrophysical compact objects as Type II supernova in post collapse phase and proto-neutron stars. The analysis is based…

High Energy Astrophysical Phenomena · Physics 2012-04-23 Marcello Baldo , Vincenzo Palmisano

The relative rate of neutron stars and black holes produced by the collapse of massive stars is highly uncertain. We simulate the stellar collapse of $195$ progenitors with masses between $9\, M_\odot$ and $120\, M_\odot$, incorporating a…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Mariam Gogilashvili , Irene Tamborra

During the shock-wave propagation in a core-collapse supernova (SN), matter turbulence may affect neutrino flavor conversion probabilities. Such effects have been usually studied by adding parametrized small-scale random fluctuations (with…

Solar and Stellar Astrophysics · Physics 2015-06-17 Enrico Borriello , Sovan Chakraborty , Hans-Thomas Janka , Eligio Lisi , Alessandro Mirizzi

Neutrinos play a crucial role in the collapse and explosion of massive stars, governing the infall dynamics of the stellar core, triggering and fueling the explosion and driving the cooling and deleptonization of the newly formed neutron…

Core collapse supernovae are unique laboratories to study many aspects of neutrino physics. The vicinity of the proto-neutron star in a core-collapse supernova is characterized by large matter and neutrino densities. A salient feature of…

Solar and Stellar Astrophysics · Physics 2015-06-11 A. B. Balantekin

A core-collapse supernova will produce an enormous burst of neutrinos of all flavors in the few-tens-of-MeV range. Measurement of the flavor, time and energy structure of a nearby core-collapse neutrino burst will yield answers to many…

Instrumentation and Methods for Astrophysics · Physics 2012-11-20 Kate Scholberg

Flavor conversion can affect the neutrino-driven delayed explosion mechanism of collapsing massive stars, altering the efficiency of shock revival. We perform core-collapse supernova simulations in spherical symmetry for a set of…

High Energy Astrophysical Phenomena · Physics 2026-05-28 Mariam Gogilashvili , Irene Tamborra

We all know that in the dense anisotropic interior of the star, neutrino-neutrino forward-scattering can lead to fast collective neutrino oscillations, which has striking consequences on flavor dependent neutrino emission and can be crucial…

High Energy Physics - Phenomenology · Physics 2021-01-06 Soumya Bhattacharyya

Neutrinos in a core-collapse supernova can undergo fast flavor conversions with a possible impact on the explosion mechanism and nucleosynthesis. We perform the first non-linear simulations of fast conversions in the presence of three…

High Energy Physics - Phenomenology · Physics 2021-01-04 Francesco Capozzi , Madhurima Chakraborty , Sovan Chakraborty , Manibrata Sen

Neutrinos emitted from a supernova may undergo flavor conversions almost immediately above the core, with possible consequences for supernova dynamics and nucleosynthesis. However, the precise conditions for such fast conversions can be…

High Energy Physics - Phenomenology · Physics 2018-11-07 Basudeb Dasgupta , Alessandro Mirizzi , Manibrata Sen

The upcoming galactic core-collapse supernova is expected to produce a considerable number of neutrino events within terrestrial detectors. By using Bayesian inference techniques, we address the feasibility of distinguishing among various…

High Energy Astrophysical Phenomena · Physics 2024-01-22 Sajad Abbar , Maria Cristina Volpe

The neutrino burst from a core-collapse supernova can provide information about the star explosion mechanism and the mechanisms of proto neutron star cooling but also about the intrinsic properties of the neutrino such as flavor…

Instrumentation and Detectors · Physics 2016-05-10 Inés Gil-Botella

Self induced neutrino flavor conversions in the dense regions of stellar core collapse are almost exclusively studied in the standard two flavor scenario. Linear stability analysis has been successfully used to understand these flavor…

High Energy Physics - Phenomenology · Physics 2020-01-09 Madhurima Chakraborty , Sovan Chakraborty

The gravitational core collapse of a star produces a huge burst of neutrinos of all flavors. A number of detectors worldwide are sensitive to such a burst; its detection would yield information about both particle physics and astrophysics.…

Astrophysics · Physics 2007-05-23 K. Scholberg

The neutrinos detected from the next Galactic core-collapse supernova will contain valuable information on the internal dynamics of the explosion. One mechanism leading to a temporal evolution of the neutrino signal is the variation of the…

Astrophysics · Physics 2008-11-26 James P. Kneller , Gail C. McLaughlin , Justin Brockman

We assess the occurrence of fast neutrino flavor instabilities in two three-dimensional state-of-the-art core-collapse supernova simulations performed using a two-moment three-species neutrino transport scheme: one with an exploding…

High Energy Astrophysical Phenomena · Physics 2021-03-31 Sajad Abbar , Francesco Capozzi , Robert Glas , H. -Thomas Janka , Irene Tamborra

We summarize our current understanding of the neutrino flavor conversions inside a core collapse supernova, clarifying the important role played by the "collective effects" in determining flavor conversion probabilities. The potentially…

High Energy Physics - Phenomenology · Physics 2010-04-22 Amol Dighe

We perform one-zone simulations of the infall epoch of a pre-supernova stellar core in the presence of neutrino flavor changing scattering interactions. Our calculations give a self-consistent assessment of the relationship between flavor…

Astrophysics · Physics 2008-11-26 Philip S. Amanik , George M. Fuller

The large neutrino density in the deep interior of core-collapse supernovae and compact binary merger remnants makes neutrino flavor evolution non-linear because of the coherent forward scattering of neutrinos among themselves. Under the…

High Energy Astrophysical Phenomena · Physics 2023-08-16 Shashank Shalgar , Irene Tamborra
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