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Core-collapse supernova remnants are structures of the interstellar medium (ISM) left behind the explosive death of most massive stars (smaller or equal to 40 Mo). Since they result in the expansion of the supernova shock wave into the…

太阳与恒星天体物理 · 物理学 2023-04-05 Meyer D. M. -A. , Pohl M. , Petrov M. , Egberts K.

A very small fraction of (runaway) massive stars have masses exceeding $60$-$70\, \rm M_{\odot}$ and are predicted to evolve as Luminous-Blue-Variable and Wolf-Rayet stars before ending their lives as core-collapse supernovae. Our 2D…

太阳与恒星天体物理 · 物理学 2020-03-04 D. M. -A. Meyer , M. Petrov , M. Pohl

We continue our numerical analysis of the morphological and energetic influence of massive stars on their ambient interstellar medium for a 35 solar mass star that evolves from the main sequence through red supergiant and Wolf-Rayet phases,…

天体物理学 · 物理学 2009-11-13 Tim Freyer , Gerhard Hensler , Harold W. Yorke

A significative fraction of high mass stars sail away through the interstellar medium of the galaxies. Once they evolved and died via a core collapse supernova, a magnetized, rotating neutron star (a pulsar) is usually their leftover. The…

高能天体物理现象 · 物理学 2024-09-25 D. M. A. Meyer , Z Meliani , D. F. Torres

Massive stars shape their surrounding medium through the force of their stellar winds, which collide with the circumstellar medium. Because the characteristics of these stellar winds vary over the course of the evolution of the star, the…

太阳与恒星天体物理 · 物理学 2012-10-04 Allard Jan van Marle , Rony Keppens

We study the evolution of the interstellar and circumstellar media around massive stars (M > 40M_{\odot}) from the main sequence through to the Wolf-Rayet stage by means of radiationhydrodynamic simulations. We use publicly available…

太阳与恒星天体物理 · 物理学 2015-05-28 J. A. Toalá , S. J. Arthur

(Abridged) Mass-loss from massive stars leads to the formation of circumstellar wind-blown bubbles surrounding the star, bordered by a dense shell. When the star ends its life in a supernova (SN) explosion, the resulting shock wave will…

天体物理学 · 物理学 2009-06-23 Vikram V. Dwarkadas

Pulsar wind nebulae are a possible final stage of the circumstellar evolution of massive stars, where a fast rotating, magnetised neutron star produces a powerful wind that interacts with the supernova ejecta. The shape of these so called…

高能天体物理现象 · 物理学 2023-11-14 Meyer D. M. -A. , Meliani Z. , Velazquez P. F. , Pohl M. , Torres D. F.

A significant fraction of massive stars move at speed through the interstellar medium of galaxies. After their death as core collapse supernovae, a possible final evolutionary state is that of a fast rotating magnetised neutron star,…

高能天体物理现象 · 物理学 2022-07-06 D. M. -A. Meyer , Z. Meliani

A signification fraction of Galactic massive stars (> 8Mo) are ejected from their parent cluster and supersonically sail away through the interstellar medium (ISM). The winds of these fast-moving stars blow asymmetric bubbles thus creating…

高能天体物理现象 · 物理学 2021-02-24 D. M. -A. Meyer , M. Pohl , M. Petrov , L. Oskinova

Wolf-Rayet stars are advanced evolutionary stages of massive stars. Despite their large mass-loss rates and high wind velocities, none of them display a bow shock, although a fraction of them are classified as runaway. Our 2.5-D numerical…

太阳与恒星天体物理 · 物理学 2020-07-22 D. M. -A. Meyer , L. M. Oskinova , M. Pohl , M. Petrov

We present models of spherically symmetric recurrent nova shells interacting with circumstellar material in a symbiotic system composed of a red giant expelling a wind, and a white dwarf accreting from this material. Recurrent nova…

太阳与恒星天体物理 · 物理学 2015-06-11 Kevin Moore , Lars Bildsten

Massive stars blow powerful stellar winds throughout their evolutionary stages from the main sequence to Wolf-Rayet phases. The amount of mechanical energy deposited in the interstellar medium by the wind from a massive star can be…

高能天体物理现象 · 物理学 2018-05-16 Jeongbhin Seo , Hyesung Kang , Dongsu Ryu

When a core-collapse supernova explodes in a binary star system, the ejecta might encounter an overdense shell, where the stellar winds of the two stars previously collided. In this work, we investigate effects of such interactions on…

高能天体物理现象 · 物理学 2022-01-19 Ondřej Pejcha , Diego Calderón , Petr Kurfürst

Magnetized rotating neutron stars, or pulsars, are a possible end product of massive star evolution. Their relativistic wind successively interacts with the supernova ejecta of their defunct progenitor, then with the circumstellar medium of…

高能天体物理现象 · 物理学 2026-02-26 D. M. -A. Meyer , D. F. Torres

I review multiwavelength observations of material seen around different types of evolved massive stars (i.e. red supergiants, yellow hypergiants, luminous blue variables, B[e] supergiants, and Wolf-Rayet stars), concentrating on diagnostics…

太阳与恒星天体物理 · 物理学 2010-10-20 Nathan Smith

We study the evolution of the circumstellar medium of massive stars. We pay particular attention to Wolf-Rayet stars that are thought to be the progenitors of some long Gamma-Ray Bursts. We detail the mass-loss rates we use in our stellar…

天体物理学 · 物理学 2009-11-13 J. J. Eldridge , F. Genet , F. Daigne , R. Mochkovitch

Wolf-Rayet stars are amongst the rarest but also most intriguing massive stars. Their extreme stellar winds induce famous multi-wavelength circumstellar gas nebulae of various morphologies, spanning from circles and rings to bipolar shapes.…

太阳与恒星天体物理 · 物理学 2021-09-08 D. M. -A. Meyer

We study the hydrodynamical behavior occurring in the turbulent interaction zone of a fast moving red supergiant star, where the circumstellar and interstellar material collide. In this wind-interstellar medium collision, the familiar bow…

太阳与恒星天体物理 · 物理学 2011-05-31 Allard Jan van Marle , Zakaria Meliani , Rony Keppens , Leen Decin

As massive stars evolve, their winds change. This causes a series of hydrodynamical interactions in the surrounding medium. Whenever a fast wind follows a slow wind phase, the fast wind sweeps up the slow wind in a shell, which can be…

太阳与恒星天体物理 · 物理学 2011-02-02 Allard Jan van Marle , Rony Keppens , Zakaria Meliani
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