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Related papers: Impact of Winds from Intermediate-Mass Stars on Mo…

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Winds from young massive stars contribute a large amount of energy to their host molecular clouds. This has consequences for the dynamics and observable structure of star-forming clouds. In this paper, we present radiative…

Astrophysics of Galaxies · Physics 2020-12-09 Sam Geen , Rebekka Bieri , Joakim Rosdahl , Alex de Koter

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…

We develop a model for the wind properties of cool main-sequence stars, which comprises their wind ram pressures, mass fluxes, and terminal wind velocities. The wind properties are determined through a polytropic magnetised wind model,…

Astrophysics · Physics 2009-11-11 V. Holzwarth , M. Jardine

Aims: We study the evolution of stellar rotation and wind properties for low-mass main-sequence stars. Our aim is to use rotational evolution models to constrain the mass loss rates in stellar winds and to predict how their properties…

Solar and Stellar Astrophysics · Physics 2015-05-21 C. P. Johnstone , M. Güdel , I. Brott , T. Lüftinger

We examine the effect of momentum-driven OB-star stellar winds on a parameter space of simulated turbulent Giant Molecular Clouds using SPH hydrodynamical simulations. By comparison with identical simulations in which ionizing radiation was…

Astrophysics of Galaxies · Physics 2015-06-17 J. E. Dale , J. Ngoumou , B. Ercolano , I. A. Bonnell

All molecular clouds are observed to be turbulent, but the origin, means of sustenance, and evolution of the turbulence remain debated. One possibility is that stellar feedback injects enough energy into the cloud to drive observed motions…

Astrophysics of Galaxies · Physics 2016-12-28 Ryan D. Boyden , Eric W. Koch , Erik W. Rosolowsky , Stella S. R. Offner

Accurate determination of mass-loss rates from massive stars is important to understanding stellar and galactic evolution and enrichment of the interstellar medium. Large-scale structure and variability in stellar winds have significant…

Numerous spherical ``shells" have been observed in young star-forming environments that host low- and intermediate-mass stars. These observations suggest that these shells may be produced by isotropic stellar wind feedback from young…

Solar and Stellar Astrophysics · Physics 2021-07-28 Anna L. Rosen , Stella S. R. Offner , Michael M. Foley , Laura A. Lopez

As a cool star evolves, it loses mass and angular momentum due to magnetized stellar winds which affect its rotational evolution. This change has consequences that range from the alteration of its activity to influences over the atmosphere…

Solar and Stellar Astrophysics · Physics 2023-07-26 Judy Chebly , Julián D. Alvarado-Gómez , Katja Poppenhäger , Cecilia Garraffo

Radiation-driven winds heavily influence the evolution and fate of massive stars. Feedback processes from these winds impact the properties of the interstellar medium of their host galaxies. The dependence of mass loss on stellar properties…

Intermediate and massive stars drive fast and powerful isotropic winds that interact with the winds of nearby stars in star clusters and the surrounding interstellar medium (ISM). Wind-ISM collisions generate astrospheres around these stars…

Astrophysics of Galaxies · Physics 2021-11-08 Monica Gallegos-Garcia , Blakesley Burkhart , Anna Rosen , Jill P. Naiman , Enrico Ramirez-Ruiz

We calculate radiatively driven wind models of main-sequence B stars and provide the wind mass-loss rates and terminal velocities. The main-sequence mass-loss rate strongly depends on the stellar effective temperature. For the hottest B…

Solar and Stellar Astrophysics · Physics 2014-05-08 Jiri Krticka

Stellar evolution models of massive stars are very sensitive to the adopted mass-loss scheme. The magnitude and evolution of mass-loss rates significantly affect the main sequence evolution, and the properties of post-main sequence objects,…

Solar and Stellar Astrophysics · Physics 2017-02-01 Zsolt Keszthelyi , Joachim Puls , Gregg Wade

We present SPH simulations of protoclusters including the effects of winds from massive stars. Using a particle-injection method, we investigate the effect of structure close to the wind sources and the short-timescale influence of winds on…

Astrophysics · Physics 2009-11-13 J. E. Dale , I. A. Bonnell

The basic mechanisms responsible for producing winds from cool, late-type stars are still largely unknown. We take inspiration from recent progress in understanding solar wind acceleration to develop a physically motivated model of the…

Solar and Stellar Astrophysics · Physics 2015-05-30 Steven R. Cranmer , Steven H. Saar

Massive young stellar clusters are strong sources of radiation and mechanical energy. Their powerful winds and radiation pressure sweep-up interstellar gas into thin expanding shells which trap the ionizing radiation produced by the central…

Astrophysics of Galaxies · Physics 2015-06-19 Sergio Martinez-Gonzalez , Sergiy Silich , Guillermo Tenorio-Tagle

We investigate mass losses via stellar winds from sun-like main sequence stars with a wide range of activity levels. We perform forward-type magnetohydrodynamical numerical experiments for Alfven wave-driven stellar winds with a wide range…

Solar and Stellar Astrophysics · Physics 2015-06-12 Takeru K. Suzuki , Shinsuke Imada , Ryuho Kataoka , Yoshiaki Kato , Takuma Matsumoto , Hiroko Miyahara , Saku Tsuneta

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

We model the combined effects of photoionization and momentum--driven winds from O--stars on molecular clouds spanning a parameter space of initial conditions. The dynamical effects of the winds are very modest. However, in the lower--mass…

Astrophysics of Galaxies · Physics 2015-06-19 J. E. Dale , J. Ngoumou , B. Ercolano , I. A. Bonnell

We constrain wind parameters of a sample of 18 O-type stars in the LMC, through analysis with stellar atmosphere and wind models including the effects of optically thick clumping. This allows us to determine the most accurate spectroscopic…

Solar and Stellar Astrophysics · Physics 2024-10-09 C. Hawcroft , L. Mahy , H. Sana , J. O. Sundqvist , M. Abdul-Masih , S. A. Brands , L. Decin , A. deKoter , J. Puls
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