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相关论文: An Integral Condition for Core-Collapse Supernova …

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Core-collapse supernovae presumably explode because trapped neutrinos push the material out of the stellar envelope. This process is directly controlled by the weak scale $v$: we argue that supernova explosions happen only if fundamental…

高能天体物理现象 · 物理学 2019-10-23 Guido D'Amico , Alessandro Strumia , Alfredo Urbano , Wei Xue

We present results of simulations of stellar collapse and explosions in spherical symmetry for progenitor stars in the 8-10 solar mass range with an O-Ne-Mg core. The simulations were continued until nearly one second after core bounce and…

天体物理学 · 物理学 2011-08-09 F. S. Kitaura , H. -Th. Janka , W. Hillebrandt

Motivated by their role as the direct or indirect source of many of the elements in the Universe, numerical modeling of core collapse supernovae began more than five decades ago. Progress toward ascertaining the explosion mechanism(s) has…

太阳与恒星天体物理 · 物理学 2023-01-25 Anthony Mezzacappa

We present a new mechanism for core-collapse supernova explosions that relies upon acoustic power generated in the inner core as the driver. In our simulation using an 11-solar-mass progenitor, a strong advective-acoustic oscillation a la…

天体物理学 · 物理学 2008-11-26 Adam Burrows , Eli Livne , Luc Dessart , Christian Ott , Jeremiah Murphy

We report here on recent progress in understanding the birth conditions of neutron stars and the way how supernovae explode. More sophisticated numerical models have led to the discovery of new phenomena in the supernova core, for example a…

天体物理学 · 物理学 2009-06-23 H. -Th. Janka , A. Marek , B. Mueller , L. Scheck

The success of the neutrino mechanism of core-collapse supernovae relies on the supporting action of two hydrodynamic instabilities: neutrino-driven convection and the Standing Accretion Shock Instability (SASI). Depending on the structure…

太阳与恒星天体物理 · 物理学 2015-06-17 Rodrigo Fernández , Bernhard Mueller , Thierry Foglizzo , Hans-Thomas Janka

Core-collapse supernovae are among Nature's most energetic events. They mark the end of massive star evolution and pollute the interstellar medium with the life-enabling ashes of thermonuclear burning. Despite their importance for the…

高能天体物理现象 · 物理学 2015-05-13 C. D. Ott , E. Schnetter , A. Burrows , E. Livne , E. O'Connor , F. Loeffler

We study the general relativistic collapse of neutron star (NS) models in spherical symmetry. Our initially stable models are driven to collapse by the addition of one of two things: an initially in-going velocity profile, or a shell of…

广义相对论与量子宇宙学 · 物理学 2016-02-17 Scott C. Noble , Matthew W. Choptuik

The formation of a core collapse supernovae (SNe) results in a fast (but non- or mildly-relativistic) shock wave expanding outwards into the surrounding medium. The medium itself is likely modified due to the stellar mass-loss from the…

高能天体物理现象 · 物理学 2015-09-04 Vikram V. Dwarkadas , M. Renaud , A. Marcowith , V. Tatischeff

Core collapse supernovae(SN) are the final stages of evolution in massive stars during which the central region collapses. Recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but…

天体物理学 · 物理学 2007-05-23 P. Hoeflich , A. Khokhlov , L. Wang , J. C. Wheeler , D. Baade

The mechanism of core-collapse supernova explosions must draw on the energy provided by gravitational collapse and transfer the necessary fraction to the kinetic and internal energy of the ejecta. Despite many decades of concerted…

高能天体物理现象 · 物理学 2009-11-19 C. D. Ott

Recent observations of supernovae, supernova remnants, and radio pulsars suggest that there are correlations between pulsar kicks and spins, infrared and gamma-ray line profiles, supernova polarizations, and ejecta debris fields. A…

天体物理学 · 物理学 2007-05-23 Adam Burrows

We have performed ab initio neutrino radiation hydrodynamics simulations in three and two spatial dimensions (3D and 2D) of core-collapse supernovae from the same 15 $M_\odot$ progenitor through 440 ms after core bounce. Both 3D and 2D…

We present 1D, 2D, and 3D hydrodynamical simulations of core-collapse supernovae including a parameterized neutrino heating and cooling scheme in order to investigate the critical core neutrino luminosity (L_crit) required for explosion. In…

高能天体物理现象 · 物理学 2013-10-16 Sean M. Couch

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…

We perform a numerical study of the critical regime for the general relativistic collapse of collisionless matter in spherical symmetry. The evolution of the matter is given by the Vlasov equation (or Boltzmann equation) and the geometry by…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Ignacio Olabarrieta

Herein, we review the nuclear equations of state (EOSs) %for core-collapse supernova simulations and the constituent nuclei of core-collapse supernovae (CCSNe) and their roles in CCSN simulations. Various nuclei such as deuterons, iron, and…

核理论 · 物理学 2022-12-20 Shun Furusawa , Hiroki Nagakura

We explore, using a state-of-the-art simulation code in 3D and to late enough times to witness final observables, the dependence of core-collapse supernova explosions on the nuclear equation of state. Going beyond questions of…

高能天体物理现象 · 物理学 2026-04-21 Aleksandr Rusakov , Adam S. Burrows , Tianshu Wang , David Vartanyan

We provide a detailed description of the Chimera code, a code developed to model core collapse supernovae in multiple spatial dimensions. The core collapse supernova explosion mechanism remains the subject of intense research. Progress to…

Core-collapse supernovae are among the most powerful explosions in the Universe, releasing about $10^{53}~\mbox{erg}$ of energy on timescales of a few tens of seconds. These explosion events are also responsible for the production and…

天体物理仪器与方法 · 物理学 2015-09-30 Reuben D. Budiardja , Christian Y. Cardall , Eirik Endeve