English
Related papers

Related papers: Issues with Core-Collapse Supernova Progenitor Mod…

200 papers

With the advent of modern neutrino and gravitational wave detectors, the promise of multi-messenger detections of the next galactic core-collapse supernova has become very real. Such detections will give insight into the core-collapse…

High Energy Astrophysical Phenomena · Physics 2020-08-12 MacKenzie L. Warren , Sean M. Couch , Evan P. O'Connor , Viktoriya Morozova

Many aspects of the progenitor systems, environments, and explosion dynamics of the various subtypes of supernovae are difficult to investigate at extragalactic distances where they are observed as unresolved sources. Alternatively, young…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Dan Milisavljevic , Robert A. Fesen

All recent numerical simulations agree that stars in the main sequence mass range of 9-40 solar masses do not produce a prompt hydrodynamic ejection of the outer layers after core collapse and bounce. Rather they suggest that stellar core…

Astrophysics · Physics 2009-11-10 M. Liebendoerfer , U. -L. Pen , C. Thompson

Supernovae explosions of massive stars are nowadays believed to result from a two-step process, with an initial gravitational core collapse followed by an expansion of matter after a bouncing on the core. This scenario meets several…

Solar and Stellar Astrophysics · Physics 2022-08-02 Pierre-Henri Chavanis , Bruno Denet , Martine Le Berre , Yves Pomeau

The physics of stellar rotation plays a crucial role in the evolution of stars, their final fate and the properties of compact remnants. Diverse approaches have been adopted to incorporate the effects of rotation in stellar evolution…

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…

High Energy Astrophysical Phenomena · Physics 2015-05-13 C. D. Ott , E. Schnetter , A. Burrows , E. Livne , E. O'Connor , F. Loeffler

A nascent neutron star resulting from stellar collapse is a prodigious source of neutrinos of all flavors. While the most basic features of this neutrino emission can be estimated from simple considerations, the detailed simulation of the…

Astrophysics · Physics 2008-11-26 Christian Y. Cardall

We model the late evolution and mass loss history of rapidly rotating Wolf-Rayet stars in the mass range $5\,\rm{M}_{\odot}\dots 100\,\rm{M}_{\odot}$. We find that quasi-chemically homogeneously evolving single stars computed with enhanced…

Solar and Stellar Astrophysics · Physics 2018-05-23 David R. Aguilera-Dena , Norbert Langer , Takashi J. Moriya , Abel Schootemeijer

The details of the physical mechanism that drives core-collapse supernovae (CCSNe) remain uncertain. While there is an emerging consensus on the qualitative outcome of detailed CCSN mechanism simulations in 2D, only recently have…

High Energy Astrophysical Phenomena · Physics 2018-10-10 Evan O'Connor , Sean Couch

The most energetic core-collapse supernovae are thought to arise from rapidly rotating, magnetised progenitors, yet the three-dimensional structure of their pre-collapse interior remains poorly constrained, and realistic distributions of…

Solar and Stellar Astrophysics · Physics 2026-05-25 Adam Griffiths , Miguel-Ángel Aloy , Martin Obergaulinger

There are about 70 Galactic supernova remnants (SNRs) that are now confirmed or suggested to be in physical contact with molecular clouds (MCs) with six kinds of evidence of multiwavelength observations. Recent detailed CO-line…

Astrophysics of Galaxies · Physics 2015-06-15 Yang Chen , Bing Jiang , Ping Zhou , Yang Su , Xin Zhou , Hui Li , Xiao Zhang

We present new two-dimensional (2D) axisymmetric neutrino radiation/hydrodynamic models of core-collapse supernova (CCSN) cores. We use the CASTRO code, which incorporates truly multi-dimensional, multi-group, flux-limited diffusion (MGFLD)…

Solar and Stellar Astrophysics · Physics 2015-06-19 Joshua C. Dolence , Adam Burrows , Weiqun Zhang

Supernovae are expected to occur near the molecular material in which the massive progenitor star was born, except in cases where the photoionizing radiation and winds from the progenitor star and its neighbors have cleared out a region.…

Astrophysics · Physics 2009-11-06 Roger A. Chevalier

We present the first 3-dimensional simulations following the evolution of supernova shocks from their inception in the stellar core through the development of a supernova remnant into the Sedov phase. Our set of simulations use two…

Solar and Stellar Astrophysics · Physics 2013-05-20 Carola I. Ellinger , Gabriel Rockefeller , Christopher L. Fryer , Patrick A. Young , Sangwook Park

Numerous physical aspects of stellar physics have been presented in Ses- sion 2 and the underlying uncertainties have been tentatively assessed. We try here to highlight some specific points raised after the talks and during the general…

Solar and Stellar Astrophysics · Physics 2015-06-22 Arlette Noels , Angela Bragaglia

We examine the stability of standing, spherical accretion shocks. Accretion shocks arise in core collapse supernovae (the focus of this paper), star formation, and accreting white dwarfs and neutron stars. We present a simple analytic model…

Astrophysics · Physics 2009-11-07 John M. Blondin , Anthony Mezzacappa , Christine DeMarino

We examine the sensitivity of neutrino emissions to stellar evolution models for a 15$M_\odot$ progenitor, paying particular attention to a phase prior to the collapse. We demonstrate that the number luminosities in both electron-type…

High Energy Astrophysical Phenomena · Physics 2020-07-01 Chinami Kato , Ryosuke Hirai , Hiroki Nagakura

Stars with initial mass above roughly 8 solar masses will evolve to form a core made of iron group elements at which point no further exothermic nuclear reactions between charged nuclei may prevent the core collapse. Electron captures,…

The current picture of the collapse and explosion of massive stars and the formation of neutron stars is reviewed. According to the favored scenario, however by no means proven and undisputed, neutrinos deposit the energy of the explosion…

Astrophysics · Physics 2010-11-19 H. -Th. Janka , K. Kifonidis , M. Rampp

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…

High Energy Astrophysical Phenomena · Physics 2017-12-25 Evan O'Connor , C. J. Horowitz , Zidu Lin , Sean Couch
‹ Prev 1 8 9 10 Next ›