Explosion Mechanisms of Core-Collapse Supernovae
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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
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Journal ArticleDOI
First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon.
D. Akimov,D. Akimov,J. B. Albert,P. An,P. An,C. Awe,C. Awe,P. S. Barbeau,P. S. Barbeau,B. Becker,V. Belov,V. Belov,I. Bernardi,Matthew A Blackston,L. Blokland,Alexander Bolozdynya,Belkis Cabrera-Palmer,N. Chen,D. Chernyak,E. Conley,R. L. Cooper,R. L. Cooper,J. Daughhetee,M. del Valle Coello,J. A. Detwiler,M.R. Durand,Yu. Efremenko,Yu. Efremenko,S. R. Elliott,Lorenzo Fabris,Michael Febbraro,W. Fox,A. Galindo-Uribarri,A. Galindo-Uribarri,A. Gallo Rosso,M. P. Green,M. P. Green,M. P. Green,K. S. Hansen,M.R. Heath,S. Hedges,S. Hedges,M. Hughes,Tyler Johnson,Tyler Johnson,M. Kaemingk,L. J. Kaufman,A. Khromov,A. Konovalov,A. Konovalov,E. Kozlova,E. Kozlova,A. Kumpan,Liang Li,Liang Li,J. T. Librande,J. M. Link,Jing Liu,Kathryn Mann,Kathryn Mann,D. M. Markoff,D. M. Markoff,O. McGoldrick,H. Moreno,P. E. Mueller,Jason Newby,Diana Parno,S. I. Penttilä,D. Pershey,D. C. Radford,R. Rapp,H. Ray,J. Raybern,O. Razuvaeva,O. Razuvaeva,David Reyna,G.C. Rich,D. Rudik,D. Rudik,J. Runge,J. Runge,D.J. Salvat,Kate Scholberg,A. Shakirov,G. Simakov,G. Simakov,G. Simakov,G. Sinev,W. M. Snow,V. Sosnovtsev,B. Suh,Rex Tayloe,K. Tellez-Giron-Flores,R. T. Thornton,R. T. Thornton,I. Tolstukhin,J. Vanderwerp,R. L. Varner,C. J. Virtue,Gerard Visser,C. Wiseman,T. Wongjirad,J. Yang,Y.-R. Yen,J. Yoo,C.-H. Yu,J. Zettlemoyer +106 more
TL;DR: The first measurement of coherent elastic neutrino-nucleus scattering (CEvNS) on argon using a liquid argon detector at the Oak Ridge National Laboratory Spallation Neutron Source was reported in this paper.
Journal ArticleDOI
Three-dimensional simulations of SASI- and convection-dominated core-collapse supernovae
TL;DR: In this paper, the authors investigate the effect of dimensionality on the transition to explosion in neutrino-driven core-collapse supernovae, and show that the ability of spiral modes to generate more nonradial kinetic energy than a single sloshing mode, increasing the size of the average shock radius, and hence generating better conditions for the formation of large-scale, high-entropy bubbles.
Journal ArticleDOI
Fast neutrino flavor conversion modes in multidimensional core-collapse supernova models: The role of the asymmetric neutrino distributions
TL;DR: In this article, the neutrino angular distribution obtained by solving the Boltzmann equations for fixed matter profiles of some representative snapshots during the postbounce phase of core-collapse supernovae in multidimensional calculations of a $11.2
Journal ArticleDOI
The impact of electron-capture supernovae on merging double neutron stars
TL;DR: In this paper, the authors investigate the impact of electron-capture supernovae (ECSNe) on the formation of double neutron star (DNS) by means of population synthesis simulations.
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The bubble-like interior of the core-collapse supernova remnant Cassiopeia A
TL;DR: The young supernova remnant Cassiopeia A, descendant of a type IIb core-collapse explosion, is peered into in the near-infrared and its interior has a bubble-like morphology that smoothly connects to and helps explain the multiringed structures seen in the remnant's bright reverse-shocked main shell of expanding debris.
References
More filters
Journal ArticleDOI
Hyper-Accreting Black Holes and Gamma-Ray Bursts
TL;DR: In this article, the authors used a numerical model for relativistic disk accretion to study steady-state accretion at high rates of gamma-ray burst (GRB) and found that neutrino annihilation in hyper-accreting black hole systems can explain bursts up to 10**52 erg.
Journal ArticleDOI
A `Hypernova' model for SN 1998bw associated with gamma-ray burst of 25 April 1998
Koichi Iwamoto,Paolo A. Mazzali,K. Nomoto,H. Umeda,T. Nakamura,Ferdinando Patat,I. J. Danziger,T. R. Young,T. Suzuki,Toshikazu Shigeyama,T. Augusteijn,V. Doublier,H. Boehnhardt,J. Brewer,Olivier Hainaut,C. Lidman,Bruno Leibundgut,Enrico Cappellaro,Massimo Turatto,Titus Galama,P. M. Vreeswijk,Chryssa Kouveliotou,J. van Paradijs,Elena Pian,E. Palazzi,F. Frontera +25 more
TL;DR: The discovery of the peculiar supernova (SN) 1998bw and its possible association with the gamma-ray burst (GRB) 980425$ 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.