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相关论文: A Systematic Survey of the Effects of Wind Mass Lo…

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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…

太阳与恒星天体物理 · 物理学 2024-10-09 C. Hawcroft , L. Mahy , H. Sana , J. O. Sundqvist , M. Abdul-Masih , S. A. Brands , L. Decin , A. deKoter , J. Puls

Feedback from Young Massive Clusters (YMCs) is an important driver of galaxy evolution. In the first few Myr, mechanical feedback is dominated by collective effects of the massive stellar winds in the YMC. The mass-loss rates and terminal…

星系天体物理 · 物理学 2025-11-19 C. J. K. Larkin , C. Hawcroft , J. Mackey , R. R. Lefever , L. Härer , A. A. C. Sander

Mass loss through stellar winds plays a dominant role in the evolution of massive stars. Very massive stars (VMSs, $> 100 M_{\odot}$) display Wolf-Rayet spectral morphologies (WNh) whilst on the main-sequence. Bestenlehner (2020) extended…

太阳与恒星天体物理 · 物理学 2024-11-20 Joachim M. Bestenlehner

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…

天体物理学 · 物理学 2015-06-24 S. J. Arthur

Massive stars play an important role in both cluster and galactic evolution and the rate at which they lose mass is a key driver of both their own evolution and their interaction with the environment up to and including their SNe…

太阳与恒星天体物理 · 物理学 2018-10-03 D. M. Fenech , J. S. Clark , R. K. Prinja , S. Dougherty , F. Najarro , I. Negueruela , A. Richards , B. W. Ritchie , H. Andrews

Intense mass loss through cool, low-velocity winds is a defining characteristic of low-to-intermediate mass stars during the asymptotic giant branch (AGB) evolutionary stage. Such winds return up ~80% of the initial stellar mass to the…

太阳与恒星天体物理 · 物理学 2023-07-21 Lynn D. Matthews

Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their…

天体物理学 · 物理学 2011-02-11 H. Belkus , J. Van Bever , D. Vanbeveren

Fast line-driven stellar winds play an important role in the evolution of planetary nebulae. We provide global hot star wind models of central stars of planetary nebulae. The models predict wind structure including the mass-loss rates,…

太阳与恒星天体物理 · 物理学 2020-04-08 J. Krticka , J. Kubat , I. Krtickova

Mass loss bridges the gap between massive stars and supernovae (SNe) in two major ways: (i) theoretically it is the amount of mass lost that determines the mass of the star prior to explosion, and (ii) observations of the circumstellar…

太阳与恒星天体物理 · 物理学 2017-10-11 Jorick S. Vink

(shortened) The first couple of stellar generations may have been massive, of order 100 Msun, and to have played a dominant role in galaxy formation and the chemical enrichment of the early Universe. Some fraction of these objects may have…

太阳与恒星天体物理 · 物理学 2015-06-11 Lianne Muijres , Jorick S. Vink , A. de Koter , R. Hirschi , N. Langer , S. -C. Yoon

During the late phases of evolution, low-to-intermediate mass stars like our Sun undergo periods of extensive mass loss, returning up to 80% of their initial mass to the interstellar medium. This mass loss profoundly affects the stellar…

太阳与恒星天体物理 · 物理学 2019-03-14 Lynn D. Matthews , Mark J Claussen , Graham M. Harper , Karl M. Menten , Stephen Ridgway

We describe the interplay between stellar evolution and dynamical mass loss of evolving star clusters, based on the principles of stellar evolution and cluster dynamics and on a grid of N-body simulations of cluster models. The cluster…

星系天体物理 · 物理学 2015-05-19 Henny J. G. L. M. Lamers , Holger Baumgardt , Mark Gieles

The development and progress of the studies of winds and mass loss from hot stars, from about 1965 up to now, is discussed in a personal historical perspective. The present state of knowledge about stellar winds, based on papers presented…

天体物理学 · 物理学 2007-05-23 Henny J. G. L. M. Lamers

Massive stars are "cosmic engines" (cf the title of the IAU Symposium 250). They drive the photometric and chemical evolution of galaxies, inject energy and momentum through stellar winds and supernova explosions, they modify in this way…

太阳与恒星天体物理 · 物理学 2015-06-11 Georges Meynet , Sylvia Ekstrom , Cyril Georgy , Cristina Chiappini , Andre Maeder

We present a quantitative study of the stellar and wind properties of massive stars in the compact star forming region SMC-N81. Non-LTE spherically extended atmosphere models including line-blanketing have been computed with the code CMFGEN…

天体物理学 · 物理学 2009-11-10 F. Martins , D. Schaerer , D. J. Hillier , M. Heydari-Malayeri

I present the results of radiation-driven mass-loss predictions for hot stars of all mass. Mass loss is an important aspect for the evolution of massive stars, the rotational properties of the progenitors of gamma-ray bursts, and is…

天体物理学 · 物理学 2008-11-26 Jorick S. Vink

The mass loss from Wolf-Rayet (WR) stars is of fundamental importance for the final fate of massive stars and their chemical yields. Its Z-dependence is discussed in relation to the formation of long-duration Gamma Ray Bursts (GRBs) and the…

天体物理学 · 物理学 2009-11-13 G. Graefener , W. -R. Hamann

We have calculated mass-loss rates for a grid of wind models covering a wide range of stellar parameters and have derived a mass-loss recipe for two ranges of effective temperature at either side of the bi-stability jump around spectral…

天体物理学 · 物理学 2007-05-23 Jorick S. Vink , Alex de Koter , Henny J. G. L. M. Lamers

The mass loss properties of carbon AGB stars are not very well constrained at present. A variety of empirical or theoretical formulae with different parameterisations are available in the literature and the agreement between them is…

天体物理学 · 物理学 2019-08-19 Lars Mattsson , Susanne Hoefner , Rurik Wahlin , Falk Herwig

Spectroscopic observations have shown for decades that the Wolf-Rayet (WR) phenomenon is ubiquitous among stars with different initial masses. Although much effort to understand the winds from massive WR stars has been presented in the…

太阳与恒星天体物理 · 物理学 2024-05-17 Jesús A. Toalá , Helge Todt , Andreas A. C. Sander