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Here we present evolutionary models for a set of massive stars, introducing a new prescription for the mass-loss rate obtained from hydrodynamical calculations in which the wind velocity profile, $v(r)$, and the line-acceleration,…

Solar and Stellar Astrophysics · Physics 2022-09-21 A. C. Gormaz-Matamala , M. Curé , G. Meynet , J. Cuadra , J. H. Groh , L. J. Murphy

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

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

Massive stars lose a large fraction of their mass to radiation-driven winds throughout their entire life. These outflows impact both the life and death of these stars and their surroundings. Theoretical mass-loss rates of hot, massive stars…

Solar and Stellar Astrophysics · Physics 2022-03-17 R. Björklund , J. O. Sundqvist , S. M. Singh , J. Puls , F. Najarro

[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

The winds of massive stars remove a significant fraction of their mass, strongly impacting their evolution. As a star evolves, the rate at which it loses mass changes. In stellar evolution codes, different mass-loss recipes are employed for…

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

Our understanding of massive star evolution is in flux, due to recent upheavals in our view of mass loss, and observations of a high binary fraction among O-type stars. Mass-loss rates for standard metallicity-dependent winds of hot stars…

Solar and Stellar Astrophysics · Physics 2015-06-18 Nathan Smith

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

Massive O-type stars lose a significant fraction of their mass through radiation-driven winds, a process that critically shapes their evolution and feedback into the interstellar medium. Accurate predictions of mass-loss rates are essential…

Solar and Stellar Astrophysics · Physics 2026-02-19 F. Figueroa-Tapia , J. A. Panei , M. Curé , I. Araya , S. Ekström , A. C. Gormaz-Matamala , R. O. J. Venero , L. S. Cidale

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

We present evolutionary models of zero-metallicity very massive objects, with initial masses in the range 120 Msun -- 1000 Msun, covering their quiescent evolution up to central carbon ignition. In the attempt of exploring the possible…

Astrophysics · Physics 2009-11-07 P. Marigo , C. Chiosi , R. -P. Kudritzki

Mass loss is a key process in the evolution of massive stars, and must be understood quantitatively to be successfully included in broader astrophysical applications. In this review, we discuss various aspects of radiation driven mass loss,…

Astrophysics · Physics 2008-12-18 J. Puls , J. S. Vink , F. Najarro

Mass loss is a key uncertainty in the evolution of massive stars. Stellar evolution calculations must employ parametric algorithms for mass loss, and usually only include stellar winds. We carry out a parameter study of the effects of wind…

Solar and Stellar Astrophysics · Physics 2017-07-19 Mathieu Renzo , Christian D. Ott , Steven N. Shore , Selma E. de Mink

Massive stars lose a significant fraction of mass during their evolution. However, the corresponding mass-loss rates are rather uncertain. To improve this, we calculated global line-driven wind models for Galactic B supergiants. Our models…

Solar and Stellar Astrophysics · Physics 2021-03-03 Jiri Krticka , Jiri Kubat , Iva Krtickova

We use Geneva-evolution-code to run evolutionary tracks for stellar masses ranging from $20$ to $85$ $M_\odot$ at SMC metallicity ($Z=0.002$). We upgrade the recipe for stellar winds by adopting our self-consistent m-CAK prescription, which…

Solar and Stellar Astrophysics · Physics 2024-07-24 Alex Camilo Gormaz-Matamala , Jorge Cuadra , Sylvia Ekström , Georges Meynet , Michel Curé , Krzysztof Belczynski

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…

The chemical enrichment of the Universe; the mass spectrum of planetary nebulae, white dwarfs and gravitational wave progenitors; the frequency distribution of Type I and II supernovae; the fate of exoplanets ... a multitude of phenomena…

Solar and Stellar Astrophysics · Physics 2021-10-05 Leen Decin

Massive stars have strong stellar winds that direct their evolution through the upper Hertzsprung-Russell diagram and determine the black hole mass function. Secondly, wind strength dictates the atmospheric structure that sets the ionising…

Solar and Stellar Astrophysics · Physics 2022-06-14 Jorick S. Vink

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
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