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Related papers: The Angular Momentum Evolution of Very Low Mass St…

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We present theoretical models of rotating low mass stars (0.1 - 1.0 \Msun) to demonstrate the effect of rotation on the effective temperature and luminosity of stars. The range of rotation rates in our models corresponds to the observed…

Astrophysics · Physics 2007-05-23 Alison Sills , M. H. Pinsonneault

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

Angular momentum evolution in low-mass stars is determined by initial conditions during star formation, stellar structure evolution, and the behaviour of stellar magnetic fields. Here we show that the empirical picture of angular momentum…

Solar and Stellar Astrophysics · Physics 2015-06-03 Ansgar Reiners , Subhanjoy Mohanty

The evolution of angular momentum is a key to our understanding of star formation and stellar evolution. The rotational evolution of solar-mass stars is mostly controlled by magnetic interaction with the circumstellar disc and angular…

Astrophysics · Physics 2009-11-13 Jochen Eisloeffel , Alexander Scholz

We review the current state of our knowledge concerning the rotation and angular momentum evolution of young stellar objects and brown dwarfs from a primarily observational view point. Periods are typically accurate to 1% and available for…

Astrophysics · Physics 2007-05-23 W. Herbst , J. Eisloeffel , R. Mundt , A. Scholz

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

This chapter aims at providing the most complete review of both the emerging concepts and the latest observational results regarding the angular momentum evolution of young low-mass stars and brown dwarfs. In the time since Protostars &…

Solar and Stellar Astrophysics · Physics 2015-06-17 J. Bouvier , S. P. Matt , S. Mohanty , A. Scholz , K. G. Stassun , C. Zanni

We present extensive calculations of the structure and the evolution of low-massstars in the range 0.07-0.8 $\msol$, for metallicities $-2.0\le \mh \le 0.0$. These calculations are based on the most recent description of the microphysics…

Astrophysics · Physics 2008-11-26 Gilles Chabrier , Isabelle Baraffe

The regulation of angular momentum is one of the key processes for our understanding of stellar evolution. The rotational evolution of solar-mass stars is mainly determined by the magnetic interaction with their circumstellar disk and…

Astrophysics · Physics 2007-05-23 Jochen Eisloeffel , Alexander Scholz

We calculated a grid of evolutionary tracks of rotating models with masses between 1.0 and 3.0 $M_{\odot}$ and a resolution $\delta M \leq 0.02$ $M_{\odot}$, which can be used to study the effects of rotation on stellar evolutions and on…

Solar and Stellar Astrophysics · Physics 2015-06-12 Wuming Yang , Shaolan Bi , Xiangcun Meng

Stellar rotation significantly shapes the evolution of massive stars, yet the interplay of mass and metallicity remains elusive, limiting our capacity to construct accurate stellar evolution models and to better estimate the impact of…

Solar and Stellar Astrophysics · Physics 2024-09-11 Weijia Sun , Cristina Chiappini

To better understand the observed distributions of rotation rate and magnetic activity of sun-like and low-mass stars, we derive a physically motivated scaling for the dependence of the stellar-wind torque on Rossby number. The torque also…

Solar and Stellar Astrophysics · Physics 2015-01-30 Sean P. Matt , A. Sacha Brun , Isabelle Baraffe , Jérôme Bouvier , Gilles Chabrier

(Abridged) Projected rotational velocities (vsini) have been measured for a sample of 145 stars with masses between 0.4 and >10 Msun (median mass 2.1 Msun) located in the Orion star-forming complex. These measurements have been supplemented…

Astrophysics · Physics 2009-11-10 S. C. Wolff , S. E. Strom , L. A. Hillenbrand

The evolution of rotating stars with zero-age main sequence (ZAMS) masses in the range 8 to 25 M_sun is followed through all stages of stable evolution. The initial angular momentum is chosen such that the star's equatorial rotational…

Astrophysics · Physics 2008-11-26 A. Heger , N. Langer , S. E. Woosley

We summarise recent progress in the understanding of the rotational evolution of low-mass stars (here defined as solar mass down to the hydrogen burning limit) both in terms of observations and modelling. Wide-field imaging surveys on…

Solar and Stellar Astrophysics · Physics 2018-04-04 Jonathan Irwin , Jerome Bouvier

Rotation evolution of late-type stars is dominated by magnetic braking and the underlying factors that control this angular momentum loss are important for the study of stellar spin-down. In this work, we study angular momentum loss as a…

Solar and Stellar Astrophysics · Physics 2015-11-04 Cecilia Garraffo , Jeremy J. Drake , Ofer Cohen

The angular momentum evolution of stars is crucial for understanding the formation and evolution of stars and star clusters. Using high-resolution magnetohydrodynamical (MHD) simulations of star formation in clouds with different physical…

Solar and Stellar Astrophysics · Physics 2025-11-12 Giacomo Cordoni , Sajay Sunny Mathew , Christoph Federrath

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

High precision photometry and spectroscopy of low-mass stars reveal a variety of properties standard stellar evolution cannot predict. Rotation, an essential ingredient of stellar evolution, is a step towards resolving the discrepancy…

Astrophysics · Physics 2007-11-15 D. Brown , M. Salaris , S. Cassisi , A. Pietrinferni

While magnetic fields have long been considered to be important for the evolution of magnetic non-degenerate stars and compact stars, it has become clear in recent years that actually all of the stars are deeply affected. This is…

Solar and Stellar Astrophysics · Physics 2021-02-03 Koh Takahashi , Norbert Langer
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