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Related papers: Winds from clu\sters with non-uniform stellar dist…

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Hydrodynamic models for spherically-symmetric winds driven by young stellar clusters with a generalized Schuster stellar density profile are explored. For this we use both semi-analytic models and 1D numerical simulations. We determine the…

Star clusters larger than $\sim 10^{3}$ $M_\odot$ contain multiple hot stars that launch fast stellar winds. The integrated kinetic energy carried by these winds is comparable to that delivered by supernova explosions, suggesting that at…

Solar and Stellar Astrophysics · Physics 2015-06-19 Anna L. Rosen , Laura A. Lopez , Mark R. Krumholz , Enrico Ramirez-Ruiz

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…

Solar and Stellar Astrophysics · Physics 2015-06-15 H. Rogers , J. M. Pittard

Context: The environments of young star clusters are shaped by the interactions of the powerful winds of massive stars, and their feedback on the cluster birth cloud. Several such clusters show diffuse gamma-ray emission on the degree…

High Energy Astrophysical Phenomena · Physics 2025-05-28 Lucia Härer , Thibault Vieu , Brian Reville

Context: Starbursts, and particularly their high-mass stars, play an essential role in the evolution of galaxies. The winds of massive stars not only significantly influence their surroundings, but the mass loss also profoundly affects the…

Solar and Stellar Astrophysics · Physics 2015-05-28 A. W. A. Pauldrach , D. Vanbeveren , T. L. Hoffmann

In recent years, massive star cluster environments have proved to be bright sources of very-high energy gamma-rays, in particular young clusters which are powered by the winds interacting in their cores. In order to understand how these…

High Energy Astrophysical Phenomena · Physics 2026-04-29 Thibault Vieu , Lucia Härer , Brian Reville

Mass loss governs the evolution of massive stars and shapes the stellar surroundings. To quantify the impact of the stellar winds we need to know the exact mass-loss rates; however, empirical constraints on the rates are hampered by limited…

A hydrodynamic model for steady state, spherically-symmetric winds driven by young stellar clusters with an exponential stellar density distribution is presented. Unlike in most previous calculations, the position of the singular point…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Sergiy Silich , Gennadiy Bisnovatyi-Kogan , Guillermo Tenorio-Tagle , Sergio Martinez-Gonzalez

We derive semi-analytic solutions for the thermally driven cumulative outflow from a dense stellar cluster that consists of a large number of stars with strong stellar winds, under the key assumption that their mass and energy deposition…

Solar and Stellar Astrophysics · Physics 2025-07-28 Stan Owocki

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…

Astrophysics of Galaxies · Physics 2017-01-25 A. Gatto , S. Walch , T. Naab , P. Girichidis , R. Wünsch , S. C. O. Glover , R. S. Klessen , P. C. Clark , T. Peters , D. Derigs , C. Baczynski , J. Puls

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.…

Astrophysics of Galaxies · Physics 2020-10-06 Jonathan Mackey , Samuel Green , Maria Moutzouri

We have developed a self-consistent physical model for super stellar cluster winds based on combining a 1-D steady-state adiabatic wind solution and a non-equilibrium ionization calculation. Comparing with the case of collisional ionization…

Astrophysics · Physics 2009-11-11 Li Ji , Q. Daniel Wang , John Kwan

Magnetic stresses collimate protostellar winds into a common distribution of force with angle. Sweeping into the ambient medium, such winds drive bipolar molecular outflows whose properties are insensitive to the distribution of ambient gas…

Astrophysics · Physics 2007-05-23 Christopher D. Matzner

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…

Astrophysics · Physics 2009-11-13 R. Wunsch , G. Tenorio-Tagle , J. Palous , S. Silich

Stars interact with their planets through gravitation, radiation, and magnetic fields. Although magnetic activity decreases with time, reducing associated high-energy (e.g., coronal XUV emission, flares), stellar winds persist throughout…

Solar and Stellar Astrophysics · Physics 2022-11-08 J. J. Chebly , J. D. Alvarado-Gómez , K. Poppenhaeger

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…

Astrophysics of Galaxies · Physics 2012-09-25 Julian Pittard , Hazel Rogers

Aims: We develop a method for estimating the properties of stellar winds for low-mass main-sequence stars between masses of 0.4 and 1.1 solar masses at a range of distances from the star. Methods: We use 1D thermal pressure driven…

Solar and Stellar Astrophysics · Physics 2015-04-29 C. P. Johnstone , M. Güdel , T. Lüftinger , G. Toth , I. Brott

While several studies have investigated large-scale cluster winds resulting from an intra-cluster interaction of multiple stellar winds, as yet they have not provided details of the bordering flows inside a given cluster. The present work…

Solar and Stellar Astrophysics · Physics 2018-08-30 Klaus Scherer , Alexander Noack , Jens Kleimann , Horst Fichtner , Kertsin Weis

We study galaxy super-winds driven in major mergers, using pc-resolution simulations with detailed models for stellar feedback that can self-consistently follow the formation/destruction of GMCs and generation of winds. The models include…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-13 Philip F. Hopkins , Dusan Keres , Norman Murray , Lars Hernquist , Desika Narayanan , Christopher C. Hayward

Most stars will experience episodes of substantial mass loss at some point in their lives. For very massive stars, mass loss dominates their evolution, although the mass loss rates are not known exactly, particularly once the star has left…

Astrophysics · Physics 2015-06-24 S. J. Arthur
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