Explosion Mechanisms of Core-Collapse Supernovae
Reads0
Chats0
TLDR
The neutrino-heating mechanism, aided by nonradial flows, drives explosions, albeit low-energy ones, of ONeMg-core and some Fe-core progenitors as discussed by the authors.Abstract:
Supernova theory, numerical and analytic, has made remarkable progress in the past decade. This progress was made possible by more sophisticated simulation tools, especially for neutrino transport, improved microphysics, and deeper insights into the role of hydrodynamic instabilities. Violent, large-scale nonradial mass motions are generic in supernova cores. The neutrino-heating mechanism, aided by nonradial flows, drives explosions, albeit low-energy ones, of ONeMg-core and some Fe-core progenitors. The characteristics of the neutrino emission from new-born neutron stars were revised, new features of the gravitational-wave signals were discovered, our notion of supernova nucleosynthesis was shattered, and our understanding of pulsar kicks and explosion asymmetries was significantly improved. But simulations also suggest that neutrino-powered explosions might not explain the most energetic supernovae and hypernovae, which seem to demand magnetorotational driving. Now that modeling is being advanced from two to three dimensions, more realism, new perspectives, and hopefully answers to long-standing questions are coming into reach.read more
Citations
More filters
Journal ArticleDOI
Supernova constraints on dark flavored sectors
Jorge Martin Camalich,Jorge Martin Camalich,Jorge Terol-Calvo,Jorge Terol-Calvo,Laura Tolos,Robert Ziegler +5 more
TL;DR: In this article, the cooling of the star induced by the emission of dark particles through the decay of a supernova was calculated, and a stringent upper limit on the branching fraction was established for massless dark photons and axions with flavorviolating couplings to quarks.
Journal ArticleDOI
Introduction to multi-messenger astronomy
TL;DR: The field of multi-messenger astronomy aims at the study of astronomical sources using different types of "messenger" particles: photons, neutrinos, cosmic rays and gravitational waves as discussed by the authors.
Book ChapterDOI
Detecting Gravitational Waves from Supernovae with Advanced LIGO
Matthew Evans,Michele Zanolin +1 more
Journal ArticleDOI
Large-scale Instability during Gravitational Collapse with Neutrino Transport and a Core-Collapse Supernova
TL;DR: In this paper, a new multi-dimensional, multi-temperature gas dynamics method with neutrino transport is presented for explaining core-collapse supernovae, which is interesting both for explaining SN II and for setting up observations to register possible high-energy neutrinos from the supernova.
Journal ArticleDOI
Thermal Regulation and the Star-Forming Main Sequence
TL;DR: In this paper, the interplay between cosmic rays, the initial mass function, and star formation plays a crucial role in regulating the star-forming "main sequence" of galaxies.
References
More filters
Journal ArticleDOI
Hyper-Accreting Black Holes and Gamma-Ray Bursts
TL;DR: In this article, the authors used a numerical model for relativistic disk accretion to study steady-state accretion at high rates of gamma-ray burst (GRB) and found that neutrino annihilation in hyper-accreting black hole systems can explain bursts up to 10**52 erg.
Journal ArticleDOI
A `Hypernova' model for SN 1998bw associated with gamma-ray burst of 25 April 1998
Koichi Iwamoto,Paolo A. Mazzali,K. Nomoto,H. Umeda,T. Nakamura,Ferdinando Patat,I. J. Danziger,T. R. Young,T. Suzuki,Toshikazu Shigeyama,T. Augusteijn,V. Doublier,H. Boehnhardt,J. Brewer,Olivier Hainaut,C. Lidman,Bruno Leibundgut,Enrico Cappellaro,Massimo Turatto,Titus Galama,P. M. Vreeswijk,Chryssa Kouveliotou,J. van Paradijs,Elena Pian,E. Palazzi,F. Frontera +25 more
TL;DR: The discovery of the peculiar supernova (SN) 1998bw and its possible association with the gamma-ray burst (GRB) 980425$ 1,2,3} provides new clues to the understanding of the explosion mechanism of very massive stars and to the origin of some classes of gamma ray bursts.
Journal ArticleDOI
SN 2006gy: Discovery of the most luminous supernova ever recorded, powered by the death of an extremely massive star like Eta Carinae
Nathan Smith,Wei Li,Ryan J. Foley,J. Craig Wheeler,D. Pooley,Ryan Chornock,Alexei V. Filippenko,Jeffrey M. Silverman,Robert M. Quimby,Joshua S. Bloom,Charles E. Hansen +10 more
TL;DR: The most luminous supernova ever recorded was SN2006gy as discussed by the authors, which reached a peak magnitude of -22 and had a total radiated energy of 1e51 erg.
Journal ArticleDOI
Presupernova Evolution of Differentially Rotating Massive Stars Including Magnetic Fields
TL;DR: In this paper, the authors present the first stellar evolution calculations to follow the evolution of rotating massive stars including, at least approximately, all these effects, magnetic and non-magnetic, from the zero-age main sequence until the onset of iron core collapse.
Journal ArticleDOI
Neutrino-induced nucleosynthesis of A>64 nuclei: the nu p process
Carla Fröhlich,Gabriel Martínez-Pinedo,M. Liebendörfer,M. Liebendörfer,Friedrich-Karl Thielemann,Eduardo Bravo,William Raphael Hix,Karlheinz Langanke,Nikolaj Thomas Zinner +8 more
TL;DR: The nu p process as mentioned in this paper is a nucleosynthesis process that occurs in supernovae (and possibly gamma-ray bursts) when strong neutrino fluxes create proton-rich ejecta.