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相关论文: General Relativistic Explosion Models of Core-Coll…

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We present the gravitational wave signatures for a suite of axisymmetric core collapse supernova models with progenitors masses between 12 and 25 solar masses. These models are distinguished by the fact they explode and contain essential…

Neutrinos dominate the energetics of core-collapse supernovae, and are believed to play an important role in driving the explosion. The development of a spatially multidimensional neutrino radiative transfer code is a key part of the…

天体物理学 · 物理学 2007-05-23 Christian Y. Cardall

We present results of new three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. These simulations are the first of their kind and include a microphysical…

高能天体物理现象 · 物理学 2015-02-18 P. Mösta , S. Richers , C. D. Ott , R. Haas , A. L. Piro , K. Boydstun , E. Abdikamalov , C. Reisswig , E. Schnetter

The current status of numerical solutions for the equations of ideal general relativistic hydrodynamics is reviewed. With respect to an earlier version of the article the present update provides additional information on numerical schemes…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Jose A. Font

We have developed a relativistic, radiation-hydrodynamics Lagrangian code, specifically tailored to simulate the evolution of the main observables (light curve, evolution of photospheric velocity and temperature) in core-collapse supernova…

太阳与恒星天体物理 · 物理学 2015-05-30 M. L. Pumo , L. Zampieri

Magnetohydrodynamic simulations of core-collapse supernovae have become increasingly mature and important in recent years. Magnetic fields take center stage in scenarios for explaining hypernova explosions, but are now also considered in…

高能天体物理现象 · 物理学 2024-03-29 Bernhard Müller

The computational difficulty of six-dimensional neutrino radiation hydrodynamics has spawned a variety of approximations, provoking a long history of uncertainty in the core-collapse supernova explosion mechanism. Under the auspices of the…

天体物理学 · 物理学 2017-08-23 Christian Y. Cardall , Alexei O. Razoumov , Eirik Endeve , Anthony Mezzacappa

Core-collapse supernovae are among the most fascinating phenomena in astrophysics and provide a formidable challenge for theoretical investigation. They mark the spectacular end of the lives of massive stars and, in an explosive eruption,…

太阳与恒星天体物理 · 物理学 2012-11-08 H. -Thomas Janka , Florian Hanke , Lorenz Huedepohl , Andreas Marek , Bernhard Mueller , Martin Obergaulinger

Here we present the results from two sets of simulations, in two and three spatial dimensions. In two dimensions, the simulations include multifrequency flux-limited diffusion neutrino transport in the "ray-by-ray-plus" approximation,…

天体物理学 · 物理学 2009-11-13 A. Mezzacappa , S. W. Bruenn , J. M. Blondin , W. R. Hix , O. E. B. Messer

We investigate the effect of dimensionality on the transition to explosion in neutrino-driven core-collapse supernovae. Using parameterized hydrodynamic simulations of the stalled supernova shock in one-, two- (2D), and three spatial…

高能天体物理现象 · 物理学 2015-08-06 Rodrigo Fernández

With myriads of detection events from a prospective Galactic core-collapse supernova, current and future neutrino detectors will be able to sample detailed, time-dependent neutrino fluxes and spectra. This offers enormous possibilities for…

高能天体物理现象 · 物理学 2019-09-04 B. Müller

Simulations of core-collapse supernovae (CCSNe) result in successful explosions once the neutrino luminosity exceeds a critical curve, and recent simulations indicate that turbulence further enables explosion by reducing this critical…

太阳与恒星天体物理 · 物理学 2015-05-28 Jeremiah W. Murphy , Casey Meakin

Core-collapse supernovae produce copious low-energy neutrinos and are also predicted to radiate gravitational waves. These two messengers can give us information regarding the explosion mechanism. The gravitational wave detection from these…

高能天体物理现象 · 物理学 2021-11-01 O Halim , C Casentini , M Drago , V Fafone , K Scholberg , C F Vigorito , G Pagliaroli

Within our Galaxy, supernova remnants are believed to be the major sources of cosmic rays up to the "knee". However important questions remain regarding the share of the hadronic and leptonic components, and the fraction of the supernova…

高能天体物理现象 · 物理学 2016-09-13 Gilles Ferrand , Samar Safi-Harb

The explosion of a core-collapse supernova can be approximated by the breakdown of steady-state solutions for accretion onto a proto-neutron star (PNS). We analytically show that as the neutrino luminosity exceeds a critical value L_c, the…

太阳与恒星天体物理 · 物理学 2013-05-30 Uri Keshet , Shmuel Balberg

Many of the currently available equations of state for core-collapse supernova simulations give large neutron star radii and do not provide large enough neutron star masses, both of which are inconsistent with some recent neutron star…

太阳与恒星天体物理 · 物理学 2015-06-05 Andrew W. Steiner , Matthias Hempel , Tobias Fischer

Using the numerical simulation data for two-dimensional core-collapse supernova, we examine the protoneutron star (PNS) asteroseismology with the relativistic Cowling approximation. As shown in the previous study, the gravitational wave…

高能天体物理现象 · 物理学 2021-12-15 Hajime Sotani , Tomoya Takiwaki , Hajime Togashi

Considering general relativistic, two-dimensional (2D) supernova (SN) explosion models of progenitor stars between 8.1 and 27 solar masses, we systematically analyze the properties of the neutrino emission from core collapse and bounce to…

太阳与恒星天体物理 · 物理学 2014-06-27 B. Müller , H. -Th. Janka

An attempt is made to assess the significance of rotation in the core-collapse supernova phenomenon, from both observational and theoretical point of view. The data on supernovae particularly indicative of the role of rotation in the…

天体物理学 · 物理学 2007-05-23 A. Odrzywolek , M. Kutschera , M. Misiaszek , K. Grotowski

We report a current status of our radiation-magnetohydrodynamic code for the study of core-collapse supernovae. In this contribution, we discuss the accuracy of our newly developed numerical code by presenting the test problem in a static…

天体物理学 · 物理学 2009-11-13 Kei Kotake , Naofumi Ohnishi , Shoichi Yamada , Katsuhiko Sato