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We present an analysis of the spatial distribution of various stellar populations within the Large Magellanic Cloud. We combine mid-infrared selected young stellar objects, optically selected samples with mean ages between ~9 and ~1000 Myr,…

Astrophysics · Physics 2015-12-24 Nate Bastian , Mark Gieles , Barbara Ercolano , Rob Gutermuth

The Central Molecular Zone (CMZ) is the most extreme star-forming environment in the Milky Way in terms of gas pressures, densities, temperatures, and dynamics. It acts as a critical test bed for developing star formation theories…

Astrophysics of Galaxies · Physics 2019-12-06 Maya A. Petkova , J. M. Diederik Kruijssen

A model of protostar mass and luminosity evolution in clusters gives new estimates of cluster age, protostar birthrate, accretion rate and mean accretion time. The model assumes constant protostar birthrate, core-clump accretion, and…

Astrophysics of Galaxies · Physics 2015-06-04 Philip C. Myers

We investigate the formation and evolution of giant molecular clouds (GMCs) in a Milky-Way-like disk galaxy with a flat rotation curve. We perform a series of 3D adaptive mesh refinement (AMR) numerical simulations that follow both the…

Astrophysics · Physics 2009-07-22 Elizabeth J. Tasker , Jonathan C. Tan

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

Using hydrodynamic simulations we investigate the time evolution and fragmentation of regions within molecular clouds which have lost their turbulent support leading to gravitational contraction. The initial density distributions are…

Astrophysics · Physics 2009-10-31 Ralf Klessen , Andreas Burkert

We investigate the formation of both clustered and distributed populations of young stars in a single molecular cloud. We present a numerical simulation of a 10,000 solar mass elongated, turbulent, molecular cloud and the formation of over…

Astrophysics of Galaxies · Physics 2015-05-19 Ian A. Bonnell , Rowan J. Smith , Paul C. Clark , Matthew R. Bate

The solar system was most likely born in a star cluster containing at least 1000 stars. It is highly probable that this cluster environment influenced various properties of the solar system like its chemical composition, size and the…

Astrophysics of Galaxies · Physics 2015-06-11 Susanne Pfalzner

How Very Young Massive star Clusters (VYMCs; also known as "starburst" clusters), which typically are of $\gtrsim 10^4M_\odot$ and are a few Myr old, form out of Giant Molecular Clouds is still largely an open question. Increasingly…

Astrophysics of Galaxies · Physics 2021-05-12 Sambaran Banerjee , Pavel Kroupa

Most stars, perhaps even all stars, form in crowded stellar environments. Such star forming regions typically dissolve within ten million years, while others remain bound as stellar groupings for hundreds of millions to billions of years,…

Earth and Planetary Astrophysics · Physics 2018-12-03 Francesco Flammini Dotti , Maxwell Xu Cai , Rainer Spurzem , M. B. N. Kouwenhoven

Stars are usually formed in clusters in the dense cores of molecular clouds. These embedded clusters show a wide variety of morphologies from hierarchical clusters with substructure to centrally condensed ones. Often they are elongated and…

Astrophysics of Galaxies · Physics 2014-11-20 S. Schmeja

Both simulations and observations indicate that stars form in filamentary, hierarchically clustered associations, most of which disperse into their galactic field once feedback destroys their parent clouds. However, during their early…

Earth and Planetary Astrophysics · Physics 2015-06-15 Jonathan M. Craig , Mark R. Krumholz

Star clusters form in dense, hierarchically collapsing gas clouds. Bulk kinetic energy is transformed to turbulence with stars forming from cores fed by filaments. In the most compact regions, stellar feedback is least effective in removing…

We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 x 10$^{4}$ to 3.2 x 10$^{5}$…

We recently proposed that the star-forming potential of dense molecular clouds in the Central Molecular Zone (CMZ, i.e. the central few 100 pc) of the Milky Way is linked to their orbital dynamics, potentially giving rise to an…

Astrophysics of Galaxies · Physics 2015-06-23 J. M. Diederik Kruijssen , James E. Dale , Steven N. Longmore

[abridged] Unbound young stellar systems, the loose ensembles of physically related young bright stars, trace the typical regions of recent star formation in galaxies. Their morphologies vary from small associations of stars to enormous…

Astrophysics of Galaxies · Physics 2018-07-02 Dimitrios A. Gouliermis

The Nuclear Stellar Disk has been a highly active star-forming region in the Milky Way for approximately the last 30 million years. Despite hosting prominent clusters like Arches, Quintuplet, and Nuclear Stellar, their combined mass is less…

Astrophysics of Galaxies · Physics 2024-01-30 Á. Martínez-Arranz , R. Schödel , F. Nogueras-Lara , F. Najarro , R. Fedriani

We investigate the structural evolution of young star clusters forming within centrally concentrated molecular clouds. Our simulations use the Torch framework, which integrates the FLASH magnetohydrodynamics code with the AMUSE environment,…

In the present paper we combine an N-body code that simulates the dynamics of young dense stellar systems with a massive star evolution handler that accounts in a realistic way for the effects of stellar wind mass loss. We discuss two…

Astrophysics · Physics 2009-12-04 D. Vanbeveren , H. Belkus , J. Van Bever , N. Mennekens

High-mass stars form within star clusters from dense, molecular regions, but is the process of cluster formation slow and hydrostatic or quick and dynamic? We link the physical properties of high-mass star-forming regions with their…

Astrophysics of Galaxies · Physics 2017-02-09 Cara Battersby , John Bally , Brian Svoboda