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Intense mass loss through cool, low-velocity winds is a defining characteristic of low-to-intermediate mass stars during the asymptotic giant branch (AGB) evolutionary stage. Such winds return up ~80% of the initial stellar mass to the…

Solar and Stellar Astrophysics · Physics 2023-07-21 Lynn D. Matthews

The steady state numerical solution and two dimensional hydrodynamic calculations of supergalactic winds generated by super star clusters are presented. Two possible regimes: quasi-adiabatic and strongly radiative are thoroughly discussed.…

Astrophysics · Physics 2009-11-07 S. Silich , G. Tenorio-Tagle , C. Munoz-Tunon

Following the observational and theoretical evidence that points at core collapse supernovae as major producers of dust, here we calculate the hydrodynamics of the matter reinserted within young and massive super stellar clusters under the…

Massive young star clusters contain dozens or hundreds of massive stars that inject mechanical energy in the form of winds and supernova explosions, producing an outflow which expands into their surrounding medium, shocking it and forming…

Astrophysics of Galaxies · Physics 2015-05-20 A. Castellanos-Ramirez , A. Rodriguez-Gonzalez , A. Esquivel , J. C. Toledo-Roy , J. Olivares , P. F. Velazquez

Recent claims in the literature (Bressan, Chiosi & Fagotto 1994) that the epoch describing the onset of galactic winds in spheroidal star systems has been severely overestimated in the past, due to the neglect of energy deposited in the…

Astrophysics · Physics 2016-06-08 Brad K. Gibson

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 present results from models of galactic winds driven by energy injected by nuclear starbursts. The total energy of the starburst is provided by young central stellar clusters and parts of the galactic interstellar medium are pushed out…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-18 A. Rodriguez-Gonzalez , A. Esquivel , A. C. Raga , P. Colin

In the present paper we combine an N-body code that simulates the dynamics of young dense stellar systems with a massive star evolution handler that accounts in a realistic way for the effects of stellar wind mass loss. We discuss two…

Astrophysics · Physics 2009-12-04 D. Vanbeveren , H. Belkus , J. Van Bever , N. Mennekens

We present the first "combined stellar structure and atmosphere models" (CoStar) for massive stars, which consistently treat the entire mass loosing star from the center out to the asymptotic wind velocity. The models use up-to-date input…

Astrophysics · Physics 2007-05-23 D. Schaerer , A. de Koter , W. Schmutz , A. Maeder

In this paper, we explore the significant, non-linear impact that stellar winds have on H ii regions. We perform a parameter study using three-dimensional radiative magnetohydrodynamic simulations of wind and ultraviolet radiation feedback…

Astrophysics of Galaxies · Physics 2024-02-02 Sam Geen , Rebekka Bieri , Alex de Koter , Taysun Kimm , Joakim Rosdahl

Recent numerical simulations of the interstellar medium driven by energy input from supernovae and stellar winds indicate that HI clouds can be formed by compression in shock waves and colliding turbulent streams without any help from…

Astrophysics · Physics 2007-05-23 Anvar Shukurov

The high luminosity of massive, early-type stars drives strong stellar winds through line scattering of the stars continuum radiation. Their momenta contribute substantially to the dynamics and energetics of the ambient interstellar medium…

Solar and Stellar Astrophysics · Physics 2024-06-24 Bharti Arora , Michael De Becker , Jeewan C. Pandey

Following work by W\"unsch and collaborators, we investigate a self-enrichment scenario for second generation star formation in globular clusters wherein wind material from first generation massive stars rapidly radiatively cools. Radiative…

Astrophysics of Galaxies · Physics 2017-07-07 Cassandra Lochhaas , Todd A. Thompson

We present two dimensional hydrodynamic calculations of free expanding supergalactic winds, taking into consideration strong radiative cooling. Our main premise is that supergalactic winds are powered by collections of superstar clusters.…

Astrophysics · Physics 2009-11-10 G. Tenorio-Tagle , S. Silich , C. Munoz-Tunon

I provide an observational review of the properties of starburst-driven galactic superwinds, focusing mainly on recent results pertinent to the transport of metals and energy into the IGM. Absorption-line studies are providing rich…

Astrophysics · Physics 2007-05-23 D. K. Strickland

Dense stellar winds may mass-load the jets of active galactic nuclei, although it is unclear what are the time and spatial scales in which the mixing takes place. We study the first steps of the interaction between jets and stellar winds,…

High Energy Astrophysical Phenomena · Physics 2017-11-01 Manel Perucho , Valentí Bosch-Ramon , Maxim V. Barkov

By conducting three-dimensional (3D) hydrodynamical simulations we find that jets that a main sequence companion launches as it orbits inside the wind acceleration zone of an asymptotic giant branch (AGB) star can efficiently remove mass…

Solar and Stellar Astrophysics · Physics 2020-03-11 Shlomi Hillel , Ron Schreier , Noam Soker

Winds arising from galaxies, star clusters, and active galactic nuclei are crucial players in star and galaxy formation, but it has proven remarkably difficult to use observations of them to determine physical properties of interest,…

Astrophysics of Galaxies · Physics 2017-08-30 Mark R. Krumholz , Todd A. Thompson , Eve C. Ostriker , Crystal L. Martin

We study a model of rapidly cooling shocked stellar winds in young massive clusters and estimate the circumstances under which secondary star formation, out of the reinserted winds from a first stellar generation (1G), is possible. We have…

Astrophysics of Galaxies · Physics 2017-01-25 Richard Wünsch , Jan Palouš , Guillermo Tenorio-Tagle , Soňa Ehlerová

We use gas dynamic simulations to explore the effects of galactic winds on galaxy clusters. Two ensembles of 18 realizations, spanning a decade in temperature, are evolved with and without winds in an underlying biased CDM cosmology.…

Astrophysics · Physics 2007-05-23 Christopher A. Metzler , August E. Evrard
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