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相关论文: The Mass-Dependence of Angular Momentum Evolution …

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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…

太阳与恒星天体物理 · 物理学 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…

太阳与恒星天体物理 · 物理学 2015-06-03 Ansgar Reiners , Subhanjoy Mohanty

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…

太阳与恒星天体物理 · 物理学 2015-11-04 Cecilia Garraffo , Jeremy J. Drake , Ofer Cohen

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…

太阳与恒星天体物理 · 物理学 2015-05-21 C. P. Johnstone , M. Güdel , I. Brott , T. Lüftinger

The rotational evolution of cool stars is governed by magnetised stellar winds which slow the stellar rotation during their main sequence lifetimes. Magnetic variability is commonly observed in Sun-like stars, and the changing strength and…

太阳与恒星天体物理 · 物理学 2018-09-19 Adam J. Finley , Sean P. Matt , Victor See

In recent years, ground- and space-based photometric surveys have characterized the rotational evolution of solar-like stars to an unprecedented level of detail. In this work we focus on the slow-rotator sequence, an emergent feature…

太阳与恒星天体物理 · 物理学 2026-02-18 F. Spada , A. C. Lanzafame

This study examines the relationship between magnetic field complexity and mass and angular momentum losses. Observations of open clusters have revealed a bimodal distribution of the rotation periods of solar-like stars that has proven…

太阳与恒星天体物理 · 物理学 2016-11-15 Cecilia Garraffo , Jeremy J. Drake , Ofer Cohen

Main sequence low-mass stars are known to spin-down as a consequence of their magnetised stellar winds. However, estimating the precise rate of this spin-down is an open problem. The mass-loss rate, angular momentum-loss rate and the…

The Sun and Sun-like stars lose angular momentum to their magnetised stellar winds. This braking torque is coupled to the stellar magnetic field, such that changes in the strength and/or geometry of the field modifies the efficiency of this…

太阳与恒星天体物理 · 物理学 2019-10-02 Adam J. Finley , Siddhant Deshmukh , Sean P. Matt , Mathew Owens , Chi-Ju Wu

We present theoretical models of the angular momentum evolution of very low mass stars (0.1 - 0.5 M_sun) and solar analogues (0.6 - 1.1 M_sun). We investigate the effect of rotation on the effective temperature and luminosity of these…

天体物理学 · 物理学 2009-07-28 Alison Sills , M. H. Pinsonneault , D. M. Terndrup

Context. Stellar spin-down is the result of a complex process involving rotation, dynamo, wind and magnetism. Multi-wavelength surveys of solar-like stars have revealed the likely existence of relationships between their rotation, X-ray…

太阳与恒星天体物理 · 物理学 2020-04-01 Jérémy Ahuir , Allan-Sacha Brun , Antoine Strugarek

We present a model for the rotational evolution of a young, solar-mass star interacting magnetically with an accretion disk. As in a previous paper (Paper I), the model includes changes in the star's mass and radius as it descends the…

太阳与恒星天体物理 · 物理学 2015-06-03 Sean P. Matt , Giovanni Pinzon , Thomas P. Greene , Ralph E. Pudritz

The rotation rates and magnetic activity of Sun-like and low-mass (< 1.4 Msun) main-sequence stars are known to decline with time, and there now exist several models for the evolution of rotation and activity. However, the role that…

太阳与恒星天体物理 · 物理学 2020-02-12 L. Amard , S. P. Matt

Sun-like and low-mass stars possess high temperature coronae and lose mass in the form of stellar winds, driven by thermal pressure and complex magnetohydrodynamic processes. These magnetized outflows probably do not significantly affect…

太阳与恒星天体物理 · 物理学 2017-11-15 George Pantolmos , Sean P. Matt

Measurements of stellar mass loss rates are used to assess how wind strength varies with coronal activity and age for solar-like stars. Mass loss generally increases with activity, but we find evidence that winds suddenly weaken at a…

天体物理学 · 物理学 2011-07-18 Brian E. Wood , Hans-Reinhard Mueller , Gary P. Zank , Jeffrey L. Linsky , Seth Redfield

Observations of young open clusters show a bimodal distribution of rotation periods that has been difficult to explain with existing stellar spin-down models. Detailed MHD stellar wind simulations have demonstrated that surface magnetic…

太阳与恒星天体物理 · 物理学 2018-08-08 C. Garraffo , J. J. Drake , A. Dotter , J. Choi , D. J. Burke , S. P. Moschou , J. D. Alvarado-Gomez , V. L. Kashyap , O. Cohen

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…

天体物理学 · 物理学 2009-11-13 Jochen Eisloeffel , Alexander Scholz

Precise photometry from the Kepler space telescope allows not only the measurement of rotation in solar-type field stars, but also the determination of reliable masses and ages from asteroseismology. These critical data have recently…

太阳与恒星天体物理 · 物理学 2016-08-29 Travis S. Metcalfe , Ricky Egeland , Jennifer van Saders

The spin evolution of main sequence stars has long been of interest for basic stellar evolution, stellar aging, stellar activity, and consequent influence on companion planets. Observations of older than solar late-type main-sequence stars…

太阳与恒星天体物理 · 物理学 2023-04-12 Ketevan Kotorashvili , Eric G. Blackman , James E. Owen

This study focuses on stars with masses above the Kraft break in the \textit{Kepler} field. Their rotational angular momenta are essentially the same as those at the zero-age main sequence. The angular momentum dissipation experienced by…

星系天体物理 · 物理学 2025-07-22 Yu-Fu Shen , Yan Xu , Yi-Bo Wang , Xiu-Lin Huang , Xing-Xing Hu , Qi Yuan
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