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We have carried out a set of Monte Carlo simulations to study a number of fundamental aspects of the dynamical evolution of multiple stellar populations in globular clusters with different initial masses, fractions of second generation (2G)…

Astrophysics of Galaxies · Physics 2021-03-03 E. Vesperini , J. Hong , M. Giersz , A. Hypki

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

We demonstrate that a seismic analysis of stars in their earliest evolutionary phases is a powerful method to identify young stars and distinguish their evolutionary states. The early star that is born from the gravitational collapse of a…

We investigate the dynamical evolution of star clusters during their formation, assuming that they are born from a turbulent starless clump of a given mass that is embedded within a parent self-gravitating molecular cloud characterized by a…

Astrophysics of Galaxies · Physics 2018-12-26 Juan P. Farias , Jonathan C. Tan , Sourav Chatterjee

We investigate the dependence of stellar properties on the initial kinematic structure of the gas in star-forming molecular clouds. We compare the results from two large-scale hydrodynamical simulations of star cluster formation that…

Solar and Stellar Astrophysics · Physics 2015-05-13 Matthew R. Bate

In spite of significant recent and ongoing research efforts, most of the early evolution and long-term fate of young massive star clusters remain clouded in uncertainties. Here, I discuss our understanding of the initial conditions of star…

Solar and Stellar Astrophysics · Physics 2015-05-14 Richard de Grijs

The survival time of a star cluster depends on its total mass, density, and thus size, as well as on the environment in which it was born and in which lies. Its dynamical evolution is influenced by various factors such as gravitational…

Star clusters are evolving n-body systems. We discuss the early dynamics of star clusters, the process of primordial mass segregation and clustering observed in certain young clusters. We discuss how the dynamics coupled with stellar…

Solar and Stellar Astrophysics · Physics 2018-10-15 Priya Shah

In the earliest phases of their evolution, stars gain mass through the acquisition of matter from their birth clouds. The widely accepted classical concept of early stellar evolution neglects the details of this accretion phase and assumes…

Solar and Stellar Astrophysics · Physics 2022-09-20 Thomas Steindl , Konstanze Zwintz , Eduard Vorobyov

Context: Star clusters, composed of stars born from the same molecular cloud, serve as invaluable natural laboratories for understanding the fundamental processes governing stellar formation and evolution. Aims: This study aims to…

A direct observation of the spiral structure of the Galaxy is hindered by our position in the middle of the Galactic plane. We propose a method based on the analysis of the birthplaces of high Galactic latitude runaway stars to map the…

Astrophysics of Galaxies · Physics 2015-06-12 M. D. V. Silva , R. Napiwotzki

The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km/s level, with implications for our understanding of how star clusters form and evolve. We use a sample of 28 clusters and…

Astrophysics of Galaxies · Physics 2019-01-09 Michael A. Kuhn , Lynne A. Hillenbrand , Alison Sills , Eric D. Feigelson , Konstantin V. Getman

The next generation of exoplanet space photometry missions proposed by both NASA and ESA promise to discover small transiting planets around the nearest and brightest main-sequence stars. The physical and rotational properties of these…

Earth and Planetary Astrophysics · Physics 2016-12-30 Samuel N. Quinn , Russel J. White

Recent studies have identified star clusters with multiple components based on accurate spatial distributions and/or proper motions from Gaia DR3, utilising diverse diagnostics to improve our understanding of subgroup evolution. These…

Solar and Stellar Astrophysics · Physics 2024-08-02 J. Gregorio-Hetem , A. Hetem

Star clusters are often used as tracers of major star formation events in external galaxies as they can be studied up to much larger distances than individual stars. It is vital to understand their evolution if they are used to derive, for…

Astrophysics of Galaxies · Physics 2015-05-14 M. Gieles

Context. The origin and dynamical evolution of star clusters is an important topic in stellar astrophysics. Several models have been proposed to understand the formation of bound and unbound clusters and their evolution, and these can be…

Using our recently improved understanding of star cluster physics, we are now within reach of answering a number of fundamental questions in contemporary astrophysics. Star cluster physics has immediate bearing on questions ranging from the…

Astrophysics of Galaxies · Physics 2011-07-06 Richard de Grijs

Recent high-precision observations with HST and Gaia enabled new investigations of the internal kinematics of star clusters (SCs) and the dependence of kinematic properties on the stellar mass. These studies raised new questions about the…

Astrophysics of Galaxies · Physics 2024-09-25 Václav Pavlík , Douglas C. Heggie , Anna Lisa Varri , Enrico Vesperini

The physical conditions in molecular clouds control the nature and rate of star formation, with consequences for planet formation and galaxy evolution. The focus of this review is on the conditions that characterize regions of star…

Astrophysics · Physics 2009-10-31 Neal J. Evans