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相关论文: Observational Constraints on Cluster Evolution

200 篇论文

I review efforts to determine the form and any lower limit to the initial mass function in the Galactic disk, using observations of low-mass stars and brown dwarfs in the field, young clusters and star forming regions. I focus on the…

太阳与恒星天体物理 · 物理学 2015-06-05 R. D. Jeffries

The formation of globular clusters remains an open debate. Dwarf starburst galaxies are efficient at forming young massive clusters with similar masses as globular clusters and may hold the key to understanding their formation. We study…

Star-forming clumps dominate the rest-frame ultraviolet morphology of galaxies at the peak of cosmic star formation. If turbulence driven fragmentation is the mechanism responsible for their formation, we expect their stellar mass function…

星系天体物理 · 物理学 2018-07-04 Miroslava Dessauges-Zavadsky , Angela Adamo

Star cluster formation is a major mode of star formation in the extreme conditions of interacting galaxies and violent starbursts. Young clusters are observed to form in a variety of such galaxies, a substantial number resembling the…

天体物理学 · 物理学 2007-05-23 P. Anders , U. Fritze--v. Alvensleben , R. de Grijs

The fundamental properties of stellar clusters, such as the age or the total initial mass in stars, are often inferred from population synthesis models. The predicted properties are then used to constrain the physical mechanisms involved in…

天体物理学 · 物理学 2013-07-02 M. Cervino , D. Valls-Gabaud

The conditions that lead to self-regulated star formation, star bursts and the formation of massive stellar clusters are discussed. Massive stars have a strong impact on their environment, especially on the evolution of dwarf galaxies which…

天体物理学 · 物理学 2007-05-23 Andreas Burkert

In this chapter, we review some historical understanding and recent advances on the Initial Mass Function (IMF) and the Core Mass Function (CMF), both in terms of observations and theories. We focus mostly on star formation in clustered…

Early-type dwarfs are the most common galaxy in the local universe, yet their origin and evolution remain a mystery. Various cosmological scenarios predict that dwarf-like galaxies in dense areas are the first to form and hence should be…

天体物理学 · 物理学 2015-06-24 Christopher J. Conselice , John S. Gallagher , Rosemary F. G. Wyse

This paper investigates whether nonlinear gravitational instability can account for the clustering of galaxies on large and small scales, and for the evolution of clustering with epoch. No CDM-like spectrum is consistent with the shape of…

天体物理学 · 物理学 2015-06-24 J. A. Peacock

This work analyses the present-day mass function (PDMF) of 93~star clusters utilizing Gaia DR3 data, with membership determined by the StarGo machine learning algorithm. The impact of unresolved binary systems on mass estimation is…

星系天体物理 · 物理学 2024-03-15 Xiaoying Pang , Siqi Liao , Jiadong Li , Zhiqiang Yan , Mingjie Jian , M. B. N. Kouwenhoven , Shih-Yun Tang , Yifan Wang

The young star clusters we observe today are the building blocks of a new generation of stars and planets in our Galaxy and beyond. Despite their fundamental role we still lack knowledge about the conditions under which star clusters form…

星系天体物理 · 物理学 2015-03-19 C. Olczak , R. Spurzem , Th. Henning , T. Kaczmarek , S. Pfalzner , S. Harfst , S. Portegies Zwart

Recently de Marchi, Paresce & Pulone (2007) studied a sample of twenty globular clusters and found that all clusters with high concentrations have steep stellar mass-functions while clusters with low concentration have comparatively shallow…

天体物理学 · 物理学 2009-11-13 Michael Marks , Pavel Kroupa , Holger Baumgardt

This review summarises the main properties of Young Massive Clusters (YMCs), including their population properties, particularly focusing on extragalactic cluster samples. We discuss potential biases and caveats that can affect the…

星系天体物理 · 物理学 2016-11-23 Nate Bastian

The observable characteristics and subsequent evolution of young stellar populations is dominated by their massive stars. As our understanding of those massive stars and the factors affecting their evolution improves, so our interpretation…

星系天体物理 · 物理学 2022-09-28 Jan J. Eldridge , Elizabeth R. Stanway

The wind of an asymptotic-giant-branch stars is sufficiently strong that if it is slightly asymmetric, it can propel the star outside of the open cluster of its birth or significantly alter its trajectory through a globular cluster;…

天体物理学 · 物理学 2009-11-13 Jeremy S. Heyl

Understanding the formation of globular clusters will help us to constrain the evolutionary history of galaxies. For mergers on-going today, it appears that the number of newly created proto-globulars varies with the progenitor types and…

天体物理学 · 物理学 2007-05-23 Duncan Forbes

This article reviews some recent studies of the mass, age, and space distributions of star clusters, with a primary focus on the large population of clusters in the interacting Antennae galaxies. Some of the highlights of these studies are…

天体物理学 · 物理学 2007-05-23 S. Michael Fall

I discuss the chemical evolution of star clusters, with emphasis on old globular clusters, in relation to their formation histories. Globular clusters clearly formed in a complex fashion, under markedly different conditions from any younger…

星系天体物理 · 物理学 2015-05-14 Jacco Th. van Loon

We probe the evolution of globular clusters that could form in giant molecular clouds within high-redshift galaxies. Numerical simulations demonstrate that the large and dense enough gas clouds assemble naturally in current hierarchical…

天体物理学 · 物理学 2009-11-13 Oleg Y. Gnedin , Jose L. Prieto

The properties of old globular cluster systems in galaxy halos are used to infer quantitative constraints on aspects of generic star (cluster) formation. First, the spatial distribution of globulars in three large galaxies, together with…

天体物理学 · 物理学 2007-05-23 Dean E. McLaughlin