中文
相关论文

相关论文: The intrinsic high metallicity of cSNRs

200 篇论文

The long-term evolution of supernova remnants (SNRs) in the primordial interstellar medium (ISM) with an inhomogeneous structure is calculated to investigate metal enrichment of the primordial gas. For this purpose, we have constructed a…

天体物理学 · 物理学 2009-10-31 Naohito Nakasato , Toshikazu Shigeyama

We investigate the evolution of supernova remnants (SNRs) in a two-phase cloudy medium by performing a series of high-resolution (up to $\Delta x\approx0.01\,\mathrm{pc}$), 3D hydrodynamical simulations including radiative cooling and…

星系天体物理 · 物理学 2024-11-21 Minghao Guo , Chang-Goo Kim , James M. Stone

Recent studies using 21 cm HI line and $^{13}$CO line observations in the inner part of the Galaxy have resulted in new distances for 30 Galactic supernova remnants (SNRs). 15 of those remnants have observed X-ray spectra, for which…

星系天体物理 · 物理学 2018-10-17 D. A. Leahy , S. Ranasinghe

We performed three-dimensional magnetohydrodynamic simulations to study the evolution of a supernova remnant (SNR) in a turbulent neutral atomic interstellar medium. The media used as background shares characteristics with the Solar…

星系天体物理 · 物理学 2019-10-16 Marco A. Villagran , P. F. Velázquez , D. O. Gómez , E. B. Giacani

Supernova remnants (SNRs) are diffuse extended sources characterized by a complex morphology and a non-uniform distribution of ejecta. Such a morphology reflects pristine structures and features of the progenitor supernova (SN) and the…

高能天体物理现象 · 物理学 2017-10-25 S. Orlando , M. Miceli , O. Petruk

We present an analytical model of $\Sigma-D$ relation for supernova remnants (SNRs) evolving in a clumpy medium. The model and its approximations were developed using the hydrodynamic simulations of SNRs in environments of low-density…

星系天体物理 · 物理学 2024-09-13 Petar Kostić , Bojan Arbutina , Branislav Vukotić , Dejan Urošević

Core-collapse supernova (SN) explosions may occur in the highly inhomogeneous molecular clouds (MCs) in which their progenitors were born. We perform a series of 3-dimensional hydrodynamic simulations to model the interaction between an…

高能天体物理现象 · 物理学 2018-10-17 Dong Zhang , Roger A. Chevalier

Supernova explosions and their remnants (SNRs) drive important feedback mechanisms that impact considerably the galaxies that host them. Then, the knowledge of the SNRs evolution is of paramount importance in the understanding of the…

星系天体物理 · 物理学 2019-06-26 Santiago Jimenez , Guillermo Tenorio-Tagle , Sergiy Silich

We discuss some typical problems related to numerical hydrodynamics of a dense interstellar medium. A newly developed hydrodynamical code based on adaptive mesh refinement technique is presented and applied to simulate the evolution of a…

天体物理学 · 物理学 2007-05-23 Tomasz Plewa , Michal Rozyczka

The size distribution of supernova remnants (SNRs) can help to clarify the various aspects of their evolution and interaction with the interstellar medium (ISM). Since the observed samples of SNRs are a collection of objects with very…

星系天体物理 · 物理学 2015-06-18 Abdul I. Asvarov

The large-scale gradient of the interstellar medium (ISM) density distribution essentially affects the evolution of Supernova remnants (SNRs). In a non-uniform ISM, the shape of SNR becomes essentially non-spherical, and distributions of…

天体物理学 · 物理学 2009-09-25 B. Hnatyk , O. Petruk

Recent hydrodynamical models of supernova remnants (SNRs) demonstrate that their evolution depends heavily on the inhomogeneities of the surrounding medium. As SNRs expand, their morphologies are influenced by the non-uniform and turbulent…

高能天体物理现象 · 物理学 2019-11-06 Jennifer N. Stafford , Laura A. Lopez , Katie Auchettl , Tyler Holland-Ashford

Supernovae (SNe) are generally classified into Type I and Type II. Most SNe (~ 80%), including all the subtypes of Type II, and Type Ib/c, arise from the core-collapse of massive stars. During their lifetime, mass-loss from these stars…

高能天体物理现象 · 物理学 2015-09-07 Vikram Dwarkadas

Published X-ray emission properties for a sample of 50 supernova remnants (SNRs) in the LMC are used as input for SNR evolution modelling calculations. The forward shock emission is modelled to obtain the initial explosion energy, age, and…

高能天体物理现象 · 物理学 2017-03-08 D. A. Leahy

Explaining the observed diversity of supernovae (SNe) and the physics of explosion requires knowledge of their progenitor stars, which can be obtained by constraining the circumstellar medium (CSM). Models of the SN ejecta colliding with…

高能天体物理现象 · 物理学 2020-05-20 Chelsea E. Harris , Peter E. Nugent

The spectra of several galaxies, including extremely metal-poor galaxies (EMPGs) from the EMPRESS survey, have shown that the abundances of some Si-group elements differ from "spherical" explosion models of massive stars. This leads to the…

高能天体物理现象 · 物理学 2024-10-21 Shing-Chi Leung , Ken'ichi Nomoto

We examine the evolution and emission of the supernova remnant (SNR) CTB109 using three-dimensional magnetohydrodynamics simulations. The SNR evolves in a medium divided by a plane interface into two media with different densities and…

高能天体物理现象 · 物理学 2021-11-17 A. Castellanos-Ramírez , P. F. Velázquez , J. Cantó

We perform three-dimensional smoothed particle hydrodynamics simulations in a realistic cosmological setting to investigate the expansion, feedback, and chemical enrichment properties of a 200 M_sun pair-instability supernova in the…

天体物理学 · 物理学 2011-02-11 Thomas H. Greif , Jarrett L. Johnson , Volker Bromm , Ralf S. Klessen

We carry out three-dimensional hydrodynamic simulations of the supernova remnants (SNRs) produced inside molecular clouds (MCs) near their surface using the HLL code (Harten et al. 1983). We explore the dynamical evolution and the X-ray…

星系天体物理 · 物理学 2015-06-03 Wankee Cho , Jongsoo Kim , Bon-Chul Koo

The mixed morphology class of supernova remnants has centrally peaked X-ray emission along with a shell-like morphology in radio emission. White & Long proposed that these remnants are evolving in a cloudy medium wherein the clouds are…

‹ 上一页 1 2 3 10 下一页 ›