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相关论文: Formation and Evolution of Young Massive Clusters

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Globular clusters are collisional systems, meaning that the stars inside them interact on timescales much shorter than the age of the Universe. These frequent interactions transfer energy between stars and set up observable trends that tell…

星系天体物理 · 物理学 2020-03-18 Laura L. Watkins , Roeland P. van der Marel , Andrea Bellini , Mattia Libralato , Jay Anderson

We analyze the three-dimensional shapes and kinematics of the young star cluster population forming in a high-resolution GRIFFIN project simulation of a metal-poor dwarf galaxy starburst. The star clusters, which follow a power-law mass…

星系天体物理 · 物理学 2020-12-02 Natalia Lahén , Thorsten Naab , Peter H. Johansson , Bruce Elmegreen , Chia-Yu Hu , Stefanie Walch

Young star clusters (SCs) are the cradle of stars and the site of important dynamical processes. We present N-body simulations of young SCs including recipes for metal-dependent stellar evolution and mass loss by stellar winds. We show that…

太阳与恒星天体物理 · 物理学 2013-02-12 M. Mapelli , A. Bressan

(Abridged) Interacting galaxies are well-known for their high star formation rates and rich star cluster populations, but the rapidly changing tidal field can also efficiently destroy clusters. We use numerical simulations of merging disc…

Clusters of galaxies are often embedded in larger-scale superclusters with dimensions of tens or perhaps even hundreds of Mpc. Observational and theoretical evidence suggest an important connection between cluster properties and their…

天体物理学 · 物理学 2009-09-25 Michael J. West

Typical globular clusters (GCs - young and old) host stellar populations with little or no star-to-star variations in heavy elements (e.g., Ca, Fe) nor in age. Nuclear star clusters (NSCs), on the other hand, host complex stellar…

星系天体物理 · 物理学 2021-11-03 Nate Bastian , Joel Pfeffer

(Abridged) The building blocks of galaxies are star clusters. These form with low-star formation efficiencies and, consequently, loose a large part of their stars that expand outwards once the residual gas is expelled by the action of the…

天体物理学 · 物理学 2009-11-07 Pavel Kroupa

The Antennae is a pair of late type spirals in the course of merging. The interaction triggered an ongoing strong burst of star formation that also produced a large number of Young Star Clusters (YSCs), many of which seem to be young…

天体物理学 · 物理学 2007-05-23 U. Fritze-v. Alvensleben

Dust coagulation in interstellar space and protoplanetary disks is usually treated as one of 2 extreme cases: Particle-Cluster Aggregation and Cluster-Cluster Aggregation. In this paper we study the process of hierarchical growth, where…

地球与行星天体物理 · 物理学 2016-11-02 Carsten Dominik , Dominik Paszun , Herman Borel

Most stars form in dense star clusters deeply embedded in residual gas. These objects must therefore be seen as the fundamental building blocks of galaxies. With this contribution some physical processes that act in the very early and also…

天体物理学 · 物理学 2009-11-13 Pavel Kroupa

More and more observations indicate that young star clusters could retain imprints of their formation process. In particular, the degree of substructuring and rotation are possibly the direct result of the collapse of the parent molecular…

The evolution of galaxies is driven strongly by dynamical processes including internal instabilities, tidal interactions and mergers. The cluster environment is a useful laboratory for studying these effects. I present recent results on…

天体物理学 · 物理学 2007-05-23 John Dubinski

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

An analysis of the star cluster population in a low-luminosity early type galaxy, NGC 2328, is presented. The clusters are found in a tight star-forming nuclear spiral/ring pattern and we also identify a bar from structural 2D…

星系天体物理 · 物理学 2015-06-23 Petri Vaisanen , Sudhanshu Barway , Zara Randriamanakoto

Some of the most massive globular clusters of our Milky Way, such as for example omega-Centauri, show a mixture of stellar populations spanning a few Gyr in age and 1.5 dex in metallicities. In contrast, standard formation scenarios predict…

天体物理学 · 物理学 2009-11-11 Mike Fellhauer , Pavel Kroupa , Wyn Evans

Accumulation of new data on stellar hierarchical systems and the progress in numerical simulations of their formation open the door to genetic classification of these systems, where properties of a certain group (family) of objects are…

太阳与恒星天体物理 · 物理学 2021-09-21 Andrei Tokovinin

A high number of embedded clusters is found in the Galaxy. Depending on the formation scenario, most of them can evolve to unbounded groups that are dissolved within a few tens of Myr. A systematic study of young stellar clusters showing…

星系天体物理 · 物理学 2015-06-11 T. Santos-Silva , J. Gregorio-Hetem

The observed morphological evolution since z ~ 0.5 within galaxy clusters provides evidence for a hierarchical universe. This evolution is driven by dynamical effects that operate within the cluster environment -- suppression of…

天体物理学 · 物理学 2007-05-23 Ben Moore , Vicent Quilis , Richard Bower

Using radiation-hydrodynamic cosmological simulations, we present a detailed ($0.1$ pc resolution), physically motivated portrait of a typical-mass dwarf galaxy before the epoch of reionization, resolving the formation and evolution of star…

星系天体物理 · 物理学 2023-05-03 Fred Angelo Batan Garcia , Massimo Ricotti , Kazuyuki Sugimura , Jongwon Park

We report on a study of young star cluster complexes in the spiral galaxy M51. Recent studies have confirmed that star clusters do not form in isolation, but instead tend to form in larger groupings or complexes. We use {\it HST} broad and…

天体物理学 · 物理学 2009-11-11 Nate Bastian , Mark Gieles , Yuri N. Efremov , Henny J. G. L. M. Lamers