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相关论文: Gamma-Rays from Single Lobe Supernova Explosions

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The observation of neutrinos from Supernova~1987A has confirmed the theoretical conjecture that these particles play a crucial role during the collapse of the core of a massive star. Only one per cent of the energy they carry away from the…

天体物理学 · 物理学 2007-05-23 H. -Th. Janka

Three lines of evidence indicate that in the most common type of core collapse supernovae, the energy deposited in the ejecta by the exploding core is approximately proportional to the progenitor mass cubed. This results stems from an…

宇宙学与河外天体物理 · 物理学 2015-06-15 Dovi Poznanski

All core collapse supernovae are strongly aspherical. The "Bochum event," with velocity components displaced symmetrically about the principal H$\alpha$ line, strongly suggests that SN 1987A was a bi-polar rather than a uni-polar explosion.…

天体物理学 · 物理学 2009-06-23 J. Craig Wheeler , Justyn R. Maund , Shizuka Akiyama

Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role for the explosion mechanism. First successful neutrino-driven explosions could be obtained with self-consistent,…

太阳与恒星天体物理 · 物理学 2016-11-23 H. -Thomas Janka , Tobias Melson , Alexander Summa

There are hints that nearby Type Ia supernovae may be a little different than those at large redshift. Confidence in the conclusion that there is a cosmological constant and an accelerating Universe thus still requires the hard work of…

天体物理学 · 物理学 2007-05-23 J. Craig Wheeler

The death of massive stars is shrouded in many mysteries. One of them is the mechanism that overturns the collapse of the degenerate iron core into an explosion, a process that determines the supernova explosion energy, properties of the…

高能天体物理现象 · 物理学 2020-12-23 Ondřej Pejcha

Recent developments in multi-dimensional simulations of core-collapse supernovae have considerably improved our understanding of this complex phenomenon. In addition to that, one-dimensional (1D) studies have been employed to study the…

太阳与恒星天体物理 · 物理学 2024-03-25 Luca Boccioli , Lorenzo Roberti

We review the status of the current quest to understand the mechanism of core-collapse supernovae, if neutrino-driven. In the process, we discuss the spherical explosion paradigm and its problems, some results from our new suite of collapse…

天体物理学 · 物理学 2009-11-07 Adam Burrows , Todd A. Thompson

Most supernova explosions accompany the death of a massive star. These explosions give birth to neutron stars and black holes and eject solar masses of heavy elements. However, determining the mechanism of explosion has been a half-century…

太阳与恒星天体物理 · 物理学 2021-01-21 Adam Burrows , David Vartanyan

By performing axisymmetric hydrodynamic simulations of core-collapse supernovae with spectral neutrino transport based on the isotropic diffusion source approximation scheme, we support the assumption that the neutrino-heating mechanism…

高能天体物理现象 · 物理学 2015-05-14 Yudai Suwa , Kei Kotake , Tomoya Takiwaki , Stuart C. Whitehouse , Matthias Liebendoerfer , Katsuhiko Sato

Fostered by the possibilities of multi-dimensional computational modeling, in particular the advent of three-dimensional (3D) simulations, our understanding of the neutrino-driven explosion mechanism of core-collapse supernovae (SNe) has…

高能天体物理现象 · 物理学 2017-10-25 H. -Thomas Janka , Michael Gabler , Annop Wongwathanarat

The neutrino-heating mechanism remains a viable possibility for the cause of the explosion in a wide mass range of supernova progenitors. This is demonstrated by recent two-dimensional hydrodynamic simulations with detailed,…

天体物理学 · 物理学 2008-11-26 H. -Th. Janka , A. Marek , F. -S. Kitaura

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…

太阳与恒星天体物理 · 物理学 2015-06-05 H. -Thomas Janka

The last five years have seen growing challenges to the traditional paradigm of a core collapse supernova powered by the neutrino emission of a young proto-neutron star. Chief among these challenges are gamma-ray bursts (GRBs) and the…

天体物理学 · 物理学 2009-11-07 S. E. Woosley , W. Zhang , A. Heger

Based on the work of Menon & Heger (2017), we present the bolometric light curvesand spectra of the explosions of blue supergiant progenitors from binary mergers. We study SN 1987A and two other peculiar Type IIP supernovae: SN 1998A and SN…

太阳与恒星天体物理 · 物理学 2018-10-17 Athira Menon , Victor Utrobin , Alexander Heger

The observed association between supernovae and gamma-ray bursts represents a cornerstone in our understanding of the nature of gamma-ray bursts. The collapsar model provides a theoretical framework for this connection. A key element is the…

高能天体物理现象 · 物理学 2013-04-30 Jens Hjorth

In this paper, we first discuss a series of important but puzzling physical mechanisms concerning the energy source, various kinds of core collapsed supernovae explosion mechanisms during central gravitational collapse in astrophysics. We…

高能天体物理现象 · 物理学 2017-11-29 Qiu-He Peng , Jing-Jing Liu , Chih-Kang Chou

The quest for the supernova explosion mechanism has been one of the outstanding challenges in computational astrophysics for several decades. Simulations have now progressed to a stage at which the solution appears close and neutrino and…

太阳与恒星天体物理 · 物理学 2011-12-09 Bernhard Mueller , Hans-Thomas Janka , Andreas Marek , Florian Hanke , Annop Wongwathanarat , Ewald Mueller

Core-collapse supernova explosions play a wide role in astrophysics by producing compact remnants (neutron stars, black holes) and the synthesis and injection of many heavy elements into their host Galaxy. Because they are produced in some…

This paper summarizes observed and physical properties of all types of core collapse supernovae. Despite the great diversity displayed by these objects, several regularities emerge which suggest that 1) there is a continuum in the…

天体物理学 · 物理学 2007-05-23 Mario Hamuy