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相关论文: Core Collapse Supernovae using CHIMERA: Gravitatio…

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We evolve stellar models to study the rotational profiles of the pre-explosion cores of single massive stars that are progenitors of core collapse supernovae (CCSNe), and find large rotational shear above the iron core that might play an…

太阳与恒星天体物理 · 物理学 2017-11-17 Noa Zilberman , Avishai Gilkis , Noam Soker

During the gravitational core collapse of a massive progenitor star which may give rise to at least a class of gamma-ray bursts (GRBs) associated with supernovae, a stellar core rapidly passes through a short yet important phase of…

天体物理学 · 物理学 2009-11-13 Yi Cao , Yu-Qing Lou

I summarize, in the form of an extended abstract, the ongoing efforts at the University of Arizona (and in collaboration) to understand core-collapse supernovae theoretically. Included are short discussions of 1D (SESAME) and 2D (VULCAN/2D)…

天体物理学 · 物理学 2007-05-23 Adam Burrows

This paper provides an extended exploration of the inverse-chirp gravitational-wave signals from stellar collapse in massive scalar-tensor gravity reported in [Phys. Rev. Lett. {\bf 119}, 201103]. We systematically explore the parameter…

广义相对论与量子宇宙学 · 物理学 2020-09-16 Roxana Rosca-Mead , Ulrich Sperhake , Christopher J. Moore , Michalis Agathos , Davide Gerosa , Christian D. Ott

Gravitational waves (GW) generated during a core-collapse supernova open a window into the heart of the explosion. At core bounce, progenitors with rapid core rotation rates exhibit a characteristic GW signal which can be used to constrain…

高能天体物理现象 · 物理学 2015-04-30 Jim Fuller , Hannah Klion , Ernazar Abdikamalov , Christian Ott

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

We perform spherically symmetric simulations of the core collapse of a single progenitor star of zero age main sequence mass $M_{\rm ZAMS} = 15 \, M_{\odot}$ with two models of heavy sterile neutrinos in the mass range of hundred MeV$/c^2$.…

The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence from simulations that the explosion is marginal presents…

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

Multi-messenger emissions from SN1987A and GW170817/GRB170817A suggest a Universe rife with multi-messenger transients associated with black holes and neutron stars. For LIGO-Virgo, soon to be joined by KAGRA, these observations promise…

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

It is widely thought that core-collapse supernovae (CCSNe), the explosions of massive stars following the collapse of the stars' iron cores, is obtained due to energy deposition by neutrinos. So far, this scenario was not demonstrated from…

高能天体物理现象 · 物理学 2015-02-12 Doron Kushnir

Core-collapse supernova remnants are the nebular leftover of defunct massive stars which have died during a supernova explosion, mostly while undergoing the red supergiant phase of their evolution. The morphology and emission properties of…

高能天体物理现象 · 物理学 2024-04-12 D M A Meyer , P F Velazquez , M Pohl , K Egberts , M Petrov , M A Villagran , D F Torres , R Batzofin

We present the gravitational wave analysis from rotating (model s15g) and nearly non-rotating (model s15h) 3D MHD core collapse supernova simulations at bounce and the first couple of ten milliseconds afterwards. The simulations are…

天体物理学 · 物理学 2009-11-13 S. Scheidegger , T. Fischer , S. C. Whitehouse , M. Liebendoerfer

Core-collapse supernova explosions are driven by a central engine that converts a small fraction of the gravitational binding energy released during core collapse to outgoing kinetic energy. The suspected mode for this energy conversion is…

高能天体物理现象 · 物理学 2017-12-25 Evan O'Connor , C. J. Horowitz , Zidu Lin , Sean Couch

The explosion mechanism of core-collapse supernovae is a long-standing problem in stellar astrophysics. We briefly outline the main contenders for a solution and review recent efforts to model core-collapse supernova explosions by means of…

太阳与恒星天体物理 · 物理学 2017-11-15 B. Müller

Three-dimensional simulations of core-collapse supernovae are granting new insight into the as-yet uncertain mechanism that drives successful explosions. While there is still debate about whether explosions are obtained more easily in 3D…

高能天体物理现象 · 物理学 2015-06-17 Sean M. Couch , Evan P. O'Connor

We derive estimates for the characteristics of gravitational radiation from stellar collapse, using recent models of the core-collapse of Chandrasekhar mass white dwarfs (accretion induced collapse), core-collapse supernovae and collapsars,…

天体物理学 · 物理学 2014-10-13 Chris L. Fryer , Daniel E. Holz , Scott A. Hughes

A detection of a core-collapse supernova (CCSN) gravitational-wave (GW) signal with an Advanced LIGO and Virgo detector network may allow us to measure astrophysical parameters of the dying massive star. GWs are emitted from deep inside the…

高能天体物理现象 · 物理学 2017-01-04 Jade Powell , Sarah E. Gossan , Joshua Logue , Ik Siong Heng

The core collapse of massive, rapidly-rotating stars are thought to be the progenitors of long-duration gamma-ray bursts (GRB) and their associated hyper-energetic supernovae (SNe). At early times after the collapse, relatively low angular…

太阳与恒星天体物理 · 物理学 2020-10-07 Yossef Zenati , Daniel M. Siegel , Brian D. Metzger , Hagai B. Perets