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We have used the AMR hydrodynamic code, MG, to perform 3D magnetohydrodynamic simulations with self-gravity of stellar feedback in a sheet-like molecular cloud formed through the action of the thermal instability. We simulate the…

星系天体物理 · 物理学 2017-01-25 C. J. Wareing , J. M. Pittard , S. A. E. G. Falle

We use 3D hydrodynamical models to investigate the effects of massive star feedback from winds and supernovae on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We simulate the interaction of the…

太阳与恒星天体物理 · 物理学 2015-06-15 H. Rogers , J. M. Pittard

Numerical models of the wind-blown bubble of massive stars usually only account for the wind of a single star. However, since massive stars are usually formed in clusters, it would be more realistic to follow the evolution of a bubble…

太阳与恒星天体物理 · 物理学 2015-06-04 Allard Jan van Marle , Zakaria Meliani , Alexandre Marcowith

We present a suite of three-dimensional, high-resolution hydrodynamic simulations that follow the evolution of a massive (10^7 M_sun) pressure confined, star-forming neutral gas cloud moving through a hot intra-cluster medium (ICM). The…

星系天体物理 · 物理学 2020-11-18 Francesco Calura , Michele Bellazzini , Annibale D'Ercole

The MHD version of the adaptive mesh refinement (AMR) code, MG, has been employed to study the interaction of thermal instability, magnetic fields and gravity through 3D simulations of the formation of collapsing cold clumps on the scale of…

星系天体物理 · 物理学 2020-11-11 C. J. Wareing , J. M. Pittard , S. A. E. G. Falle

We simulate the effects of massive star feedback, via winds and SNe, on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We use 3D hydrodynamic models with a temperature dependent average particle…

星系天体物理 · 物理学 2012-09-25 Julian Pittard , Hazel Rogers

We present the results of a series of numerical simulations of compressible, self-gravitating hydrodynamic turbulence of cluster-forming clumps in molecular clouds. We examine the role that turbulence has in the formation of gravitationally…

天体物理学 · 物理学 2009-11-10 David A. Tilley , Ralph E. Pudritz

By performing three-dimensional radiation hydrodynamics simulations, we study the formation of young massive star clusters (YMCs, $M_{*}>10^4~M_{\odot}$) in clouds with the surface density ranging from $\Sigma_{\rm cl} = 80$ to…

星系天体物理 · 物理学 2021-08-18 Hajime Fukushima , Hidenobu Yajima

Using the hydrodynamic code ZEUS, we perform 2D simulations to determine the fate of the gas ejected by massive stars within super star clusters. It turns out that the outcome depends mainly on the mass and radius of the cluster. In the…

天体物理学 · 物理学 2009-11-13 R. Wunsch , G. Tenorio-Tagle , J. Palous , S. Silich

We present numerical simulations of a 15 solar mass star in a suite of idealised environments in order to quantify the amount of energy transmitted to the interstellar medium (ISM). We include models of stellar winds, UV photoionisation and…

星系天体物理 · 物理学 2015-06-23 Sam Geen , Joakim Rosdahl , Jeremy Blaizot , Julien Devriendt , Adrianne Slyz

We present results of numerical simulations carried out with a 2D radiation hydrodynamics code in order to study the impact of massive stars on their surrounding interstellar medium. This first paper deals with the evolution of the…

天体物理学 · 物理学 2009-11-10 Tim Freyer , Gerhard Hensler , Harold W. Yorke

We study the formation of giant dense cloud complexes and of stars within them by means of SPH numerical simulations of the mildly supersonic collision of gas streams (``inflows'') in the warm neutral medium (WNM). The resulting…

Formation of supermassive stars (SMSs) with mass ~10^4 Msun is a promising pathway to seed the formation of supermassive black holes in the early universe. The so-called direct-collapse (DC) model postulates that such an SMS forms in a hot…

星系天体物理 · 物理学 2018-01-24 Sunmyon Chon , Takashi Hosokawa , Naoki Yoshida

The role of different stellar feedback mechanisms in giant molecular clouds is not well understood. This is especially true for regions with many interacting clouds as would be found in a galactic spiral arm. In this paper, building on…

星系天体物理 · 物理学 2022-01-13 Ahmad A. Ali , Thomas J. R. Bending , Clare L. Dobbs

Globular clusters are considerably more complex structures than previously thought, harbouring at least two stellar generations which present clearly distinct chemical abundances. Scenarios explaining the abundance patterns in globular…

星系天体物理 · 物理学 2015-11-12 F. Calura , C. G. Few , D. Romano , A. D'Ercole

We study the effect of stellar feedback (photodissociation/ionization, radiation pressure and winds) on the evolution of a Giant Molecular Cloud (GMC), by means of a 3D radiative transfer, hydro-simulation implementing a complex chemical…

星系天体物理 · 物理学 2022-07-11 D. Decataldo , A. Lupi , A. Ferrara , A. Pallottini , M. Fumagalli

Core-Collapse supernovae arise from stars greater than 8 $\msun$. These stars lose a considerable amount of mass during their lifetime, which accumulates around the star forming wind-blown bubbles. Upon the death of the star in a…

天体物理学 · 物理学 2008-11-26 Vikram V. Dwarkadas

Initial results are presented from 3D MHD modelling of stellar-wind bubbles around O stars moving supersonically through the ISM. We describe algorithm updates that enable high-resolution 3D MHD simulations at reasonable computational cost.…

星系天体物理 · 物理学 2020-10-06 Jonathan Mackey , Samuel Green , Maria Moutzouri

Hydrodynamical simulations of turbulent molecular clouds show that star clusters form from the hierarchical merger of several sub-clumps. We run smoothed-particle hydrodynamics simulations of turbulence-supported molecular clouds with mass…

星系天体物理 · 物理学 2017-03-22 Michela Mapelli

We study the impact of stellar winds and supernovae on the multi-phase interstellar medium using three-dimensional hydrodynamical simulations carried out with FLASH. The selected galactic disc region has a size of (500 pc)$^2$ x $\pm$ 5 kpc…

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