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Related papers: Stellar Winds on the Main-Sequence I: Wind Model

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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 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 acceleration of the stellar winds of rapidly rotating low mass stars and the transition between the slow magnetic rotator and fast magnetic rotator regimes. We aim to understand the properties of stellar winds in the fast…

Solar and Stellar Astrophysics · Physics 2017-02-01 C. P. Johnstone

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

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

Stellar winds from active solar type stars can play a crucial role in removal of stellar angular momentum and erosion of planetary atmospheres. However, major wind properties except for mass loss rates cannot be directly derived from…

Solar and Stellar Astrophysics · Physics 2016-02-17 Vladimir S. Airapetian , Arcadi V. Usmanov

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

Stellar winds govern the angular momentum evolution of solar-like stars throughout their main-sequence lifetime. The efficiency of this process depends on the geometry of the star's magnetic field. There has been a rapid increase recently…

Solar and Stellar Astrophysics · Physics 2016-11-11 Moira Jardine , Aline Vidotto , Victor See

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 developed angular momentum evolution models for 0.5 and 0.8 $M_{\odot}$ stars. The parametric models include a new wind braking law based on recent numerical simulations of magnetised stellar winds, specific dynamo and mass-loss rate…

Solar and Stellar Astrophysics · Physics 2015-05-13 Florian Gallet , Jérôme Bouvier

It is notoriously difficult to measure the winds of solar-type stars. Traditional spectroscopic and radio continuum techniques are sensitive to mass loss rates at least two to three orders of magnitude stronger than the Sun's relatively…

Astrophysics · Physics 2007-05-23 Steven R. Cranmer

In this work, we simulate the evolution of the solar wind along its main sequence lifetime and compute its thermal radio emission. To study the evolution of the solar wind, we use a sample of solar mass stars at different ages. All these…

Solar and Stellar Astrophysics · Physics 2019-06-17 D. Ó Fionnagáin , A. A. Vidotto , P. Petit , C. P. Folsom , S. V. Jeffers , S. C. Marsden , J. Morin , J. -D. do Nascimento

Mass-loss rate is one of the most important stellar parameters. We aim to provide mass-loss rates as a function of subdwarf parameters and to apply the formula for individual subdwarfs, to predict the wind terminal velocities, to estimate…

Solar and Stellar Astrophysics · Physics 2016-10-05 J. Krticka , J. Kubat , I. Krtickova

[Abridged] In order to explain the slow rotation observed in a large fraction of accreting pre-main-sequence stars (CTTSs), we explore the role of stellar winds in torquing down the stars. For this mechanism to be effective, the stellar…

Astrophysics · Physics 2009-11-13 Sean Matt , Ralph E. Pudritz

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…

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

Stellar winds of cool, main-sequence stars are very tenuous and difficult to observe. Despite carrying away only a small amount of the stellar mass, they are important for regulating the rotation of the star and, consequently, its activity…

Solar and Stellar Astrophysics · Physics 2014-05-26 A. A. Vidotto

The winds of low-mass stars carry away angular momentum and impact the atmospheres of surrounding planets. Determining the properties of these winds is necessary to understand the mass-loss history of the star and the evolution of…

Solar and Stellar Astrophysics · Physics 2025-03-19 Sanne Bloot , Harish K. Vedantham , Robert D. Kavanagh , Joseph R. Callingham , Benjamin J. S. Pope

[Abridged] Context: Radiation-driven mass loss plays a key role in the life-cycles of massive stars. However, basic predictions of such mass loss still suffer from significant quantitative uncertainties. Aims: We develop new…

Solar and Stellar Astrophysics · Physics 2020-01-08 J. O. Sundqvist , R. Björklund , J. Puls , F. Najarro

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
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