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Related papers: Simulating Star Clusters with the AMUSE Software F…

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We present cosmological zoom-in hydro-dynamical simulations for the formation of disc galaxies, implementing dust evolution and dust promoted cooling of hot gas. We couple an improved version of our previous treatment of dust evolution,…

(Abridged) The dynamical ejection of stars from star clusters affects the shape of the stellar mass function (MF) in these clusters, because the escape probability of a star depends on its mass. The objective of this paper is to provide and…

Astrophysics of Galaxies · Physics 2015-05-14 J. M. Diederik Kruijssen

We analyze with hydrodynamical simulations the evolution of galaxy clusters in a cosmological environment. Power ratios (Buote \& Tsai 1995) are used to quantitatively relate cluster morphologies to their dynamical states. The simulated…

Astrophysics · Physics 2015-06-24 John C. Tsai , David A. Buote

Nuclear Star Clusters (NSCs) are dense stellar systems located at the centers of galaxies. Employing Enzo-Abyss, which integrates hydrodynamics with a direct N-body solver, we introduce a simulation capable of resolving the evolution of…

Astrophysics of Galaxies · Physics 2026-03-20 Yongseok Jo , Minyong Jung , Greg L. Bryan , Seoyoung Kim , Ji-hoon Kim , Ahram Lee

This paper studies the dynamical evolution of young stellar clusters with $N$ = 100 - 1000 members. We use N-body simulations to explore how evolution depends on system size $N$ and the initial conditions. Motivated by recent observations…

Astrophysics · Physics 2009-11-13 Fred C. Adams , Eva M. Proszkow , Marco Fatuzzo , Philip C. Myers

Most stars are born in the crowded environments of gradually forming star clusters. Dynamical interactions between close-passing stars and the evolving UV radiation fields from proximate massive stars are expected to sculpt the…

Astrophysics of Galaxies · Physics 2024-09-20 Aayush Gautam , Juan P. Farias , Jonathan C. Tan

The evolution of circumstellar discs is influenced by their surroundings. The relevant processes include external photoevaporation due to nearby stars, and dynamical truncations. The impact of these processes on disc populations depends on…

Astrophysics of Galaxies · Physics 2025-10-03 Francisca Concha-Ramírez , Maite J. C. Wilhelm , Simon Portegies Zwart

The James Webb Space Telescope (JWST) has opened a window on many new puzzles in the early Universe, including a population of high-redshift star clusters with extremely high stellar surface density, suggesting unique star formation…

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…

Astrophysics of Galaxies · Physics 2023-07-05 Marta Reina-Campos , Alison Sills , Godefroy Bichon

The analysis of the age distributions of star cluster samples of different galaxies has resulted in two very different empirical models for the dissolution of star clusters: the Baltimore model and the Utrecht model. I describe these two…

Astrophysics · Physics 2009-12-04 Henny J. G. L. M. Lamers

We present analytic and numerical models of the `cluster wind' resulting from the multiple interactions of the winds ejected by the stars of a dense cluster of massive stars. We consider the case in which the distribution of stars (i.e.,…

Astrophysics · Physics 2007-08-10 Ary Rodríguez-González , J. Cantó , A. Esquivel , A. C. Raga , P. F. Velazquez

Context. Comets, asteroids, planetesimals, free-floating planets and brown dwarfs, are continuously injected into the intra-cluster environment after expulsion from their host planetary systems or binary system. The dynamics of large…

Earth and Planetary Astrophysics · Physics 2026-02-18 Francesco Flammini Dotti , M. B. N. Kouwenhoven , Kai Wu , Abbas Askar , Peter Berczik , Mirek Giersz , Rainer Spurzem , Ian Dobbs-Dixon

Protoplanetary discs spend their lives in the dense environment of a star forming region. While there, they can be affected by nearby stars through external photoevaporation and dynamic truncations. We present simulations that use the AMUSE…

We present simulations of the dynamical evolution of young embedded star clusters. Our initial conditions are directly derived from X-ray, infrared, and radio observations of local systems, and our models evolve both gas and stars…

Astrophysics of Galaxies · Physics 2018-03-20 Alison Sills , Steven Rieder , Jennifer Scora , Jessica McCloskey , Sarah Jaffa

We present a new implementation of star formation in cosmological simulations, by considering star clusters as a unit of star formation. Cluster particles grow in mass over several million years at the rate determined by local gas…

Astrophysics of Galaxies · Physics 2017-01-11 Hui Li , Oleg Y. Gnedin , Nickolay Y. Gnedin , Xi Meng , Vadim A. Semenov , Andrey V. Kravtsov

Dense gas in molecular clouds is an important signature of ongoing and future star formation. We identify and track dense cores in the STARFORGE simulations, following the core evolution from birth through dispersal by stellar feedback for…

Astrophysics of Galaxies · Physics 2025-02-24 Stella S. R. Offner , Josh Taylor , Michael Y. Grudic

We introduce the Dynamical Cluster Assembly Framework (D-CAF), an AMUSE-based framework designed to connect embedded star formation histories to the dynamical evolution of young stellar systems. We model star formation through the gradual…

Astrophysics of Galaxies · Physics 2026-05-21 Juan P. Farias , Alison Sills

We examine the effects of gas-expulsion on initially substructured distributions of stars. We perform N-body simulations of the evolution of these distributions in a static background potential to mimic the gas. We remove the static…

Astrophysics of Galaxies · Physics 2015-04-13 J. P. Farias , R. Smith , M. Fellhauer , S. Goodwin , G. N. Candlish , M. Blaña , R. Dominguez

We present numerical simulations of planetary systems in star clusters with different initial stellar densities, to investigate the impact of the density on debris disc dynamics. We use LPS+ to combine N-body codes NBODY6++GPU and REBOUND…

Earth and Planetary Astrophysics · Physics 2024-09-04 Kai Wu , M. B. N. Kouwenhoven , Francesco Flammini Dotti , Rainer Spurzem

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…

Solar and Stellar Astrophysics · Physics 2015-05-18 Nickolas Moeckel , Matthew R. Bate
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