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相关论文: The photometric evolution of dissolving star clust…

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A novel way of looking at the evolution of star clusters is presented. With a dynamical temperature, given by the mean kinetic energy of the cluster stars, and a dynamical luminosity, which is defined as the kinetic energy of the stars…

天体物理学 · 物理学 2009-11-13 Andreas H. W. Kuepper , Pavel Kroupa , Holger Baumgardt

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

It has recently been suggested that high-density clusters have stellar age distributions narrower than that of the Orion Nebula Cluster, indicating a possible trend of narrower age distributions for denser clusters. We show this effect to…

太阳与恒星天体物理 · 物理学 2015-06-22 Genevieve Parmentier , Susanne Pfalzner , Eva K. Grebel

We investigate the evolution, following gas dispersal, of a star cluster produced from a hydrodynamical calculation. We find that when the gas, initially comprising 60% of the mass, is removed, the system settles into a bound cluster…

太阳与恒星天体物理 · 物理学 2015-05-18 Nickolas Moeckel , Matthew R. Bate

The stellar-dynamical evolution of bound star clusters during the first few Myr is dominated by binary-binary and binary-star interactions, the rapid sinking of the most massive stars to the centre of the clusters and mass loss from…

天体物理学 · 物理学 2007-05-23 Pavel Kroupa

Most of the dynamical mass loss from star clusters is thought to be caused by the time-variability of the tidal field (``tidal shocks''). Systematic studies of tidal shocks have been hampered by the fact that each tidal history is unique,…

星系天体物理 · 物理学 2024-10-23 Jeremy J. Webb , Marta Reina-Campos , J. M. Diederik Kruijssen

We present a method to couple N-body star cluster simulations to a cosmological tidal field, using the Astrophysical Multipurpose Software Environment. We apply this method to star clusters embedded in the CosmoGrid dark matter-only…

宇宙学与河外天体物理 · 物理学 2013-11-05 Steven Rieder , Tomoaki Ishiyama , Paul Langelaan , Junichiro Makino , Stephen L. W. McMillan , Simon Portegies Zwart

Observations indicate blue globular clusters have half-light radii systematically larger than those of red globular clusters. In this paper, we test whether the different metallicity-dependent stellar evolution timescales and mass-loss…

星系天体物理 · 物理学 2012-07-26 Rafael Schulman , Evert Glebbeek , Alison Sills

We study the formation and early evolution of star clusters that have a wide range of masses and background cloud mass surface densities, $\Sigma_{\rm cloud}$, which help set the initial sizes, densities, and velocity dispersions of the…

星系天体物理 · 物理学 2023-06-08 Juan P. Farias , Jonathan C. Tan

Massive star clusters are often used as tracers of galaxy formation and assembly. In order to do so, we must understand their properties at formation, and how those properties change with time, galactic environment, and galaxy assembly…

星系天体物理 · 物理学 2023-07-05 Marta Reina-Campos , Alison Sills , Godefroy Bichon

Supermassive black holes at the centers of galaxies occasionally disrupt stars or consume stellar-mass black holes (BHs) that wander too close, producing observable electromagnetic or gravitational wave signals. We examine how mass…

高能天体物理现象 · 物理学 2025-09-10 Barak Rom , Re'em Sari

We investigate the impact of the star formation efficiency in cluster forming cores on the evolution of the mass in star clusters over the age range 1-100Myr, when star clusters undergo their infant weight-loss/mortality phase. Assuming a…

天体物理学 · 物理学 2008-12-18 G. Parmentier , U. Fritze

We highlight the impact of cluster-mass-dependent evolutionary rates upon the evolution of the cluster mass function during violent relaxation, that is, while clusters dynamically respond to the expulsion of their residual star-forming gas.…

星系天体物理 · 物理学 2015-06-11 Genevieve Parmentier , Holger Baumgardt

Colours of spiral galaxies generally are affected by the underlying old stellar population, younger stars, and extinction by dust. Old and young populations generally can be disentangled using a combination of blue and near-infrared…

天体物理学 · 物理学 2019-07-31 R. F. Peletier , M. Balcells

We study the evolution of star clusters in the Galactic tidal field starting from their birth in molecular clumps. Our model clusters form according to the local-density-driven cluster formation model in which the stellar density profile is…

星系天体物理 · 物理学 2020-03-18 Bekdaulet Shukirgaliyev , Genevieve Parmentier , Peter Berczik , Andreas Just

In a series of three papers, we introduced a novel cluster formation model that describes the formation, growth, and disruption of star clusters in high-resolution cosmological simulations. We tested this model on a Milky Way-sized galaxy…

星系天体物理 · 物理学 2020-03-18 Hui Li , Oleg Gnedin

We have studied the dynamical evolution of rotating star clusters with mass spectrum using a Fokker-Planck code. As a simplest multi-mass model, we first investigated the two-component clusters. Rotation is found to accelerate the dynamical…

天体物理学 · 物理学 2009-11-10 Eunhyeuk Kim , Hyung Mok Lee , Rainer Spurzem

Unresolved binaries have a strong influence on the observed parameters of stellar clusters (SCs). We quantify this influence and compute the resulting mass underestimates and stellar mass function (MF). N-body simulations of realistic SCs…

星系天体物理 · 物理学 2024-10-18 Henriette Wirth , František Dinnbier , Pavel Kroupa , Ladislav Šubr

Interacting galaxies favor the formation of star clusters but are also suspected to affect their evolution through an intense and rapidly varying tidal field. Treating this complex behaviour remains out-of-reach of (semi-)analytical…

宇宙学与河外天体物理 · 物理学 2015-06-12 Florent Renaud , Mark Gieles

We study the evolution of embedded clusters. The equations of motion of the stars in the cluster are solved by direct N-body integration while taking the effects of stellar evolution and the hydrodynamics of the natal gas content into…

太阳与恒星天体物理 · 物理学 2015-06-03 F. I. Pelupessy , S. Portegies Zwart