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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

Chemo-dynamical N-body simulations are an essential tool for understanding the formation and evolution of galaxies. As the number of observationally determined stellar abundances continues to climb, these simulations are able to provide new…

Astrophysics of Galaxies · Physics 2016-03-23 Yves Revaz , Alexis Arnaudon , Matthew Nichols , Vivien Bonvin , Pascale Jablonka

Nuclear star clusters represent some of the most extreme collisional environments in the Universe. A nuclear star cluster like that of the Milky Way harbors a supermassive black hole at its center, which accelerates stars to high speeds…

Astrophysics of Galaxies · Physics 2026-02-03 Sanaea C. Rose , James C. Lombardi, , Elena González Prieto , Fulya Kıroğlu , Frederic A. Rasio

Young stellar clusters harbour complex spatial structures emerging from the star formation process. Identifying stellar over-densities is a key step to constrain better how these structures are formed. The high accuracy of distances derived…

Astrophysics of Galaxies · Physics 2021-01-04 Timothé Roland , Christian M. Boily , Laurent Cambrésy

The cosmic web consists of a complex configuration of voids, walls, filaments, and clusters, which formed under the gravitational collapse of Gaussian fluctuations. Understanding under what conditions these different structures emerge from…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-08 Job Feldbrugge , Rien van de Weygaert

The earliest evolution of star clusters involves a phase of co-existence of both newly-formed stars, and the gas from which they are forming. Observations of the gas in such regions provide a wealth of data that can inform the simulations…

Astrophysics of Galaxies · Physics 2022-12-28 Alison Sills , Steven Rieder , Anne S. M. Buckner , Alvaro Hacar , Simon Portegies Zwart , Paula S. Teixeira

The current generation of galaxy simulations can resolve individual giant molecular clouds, the progenitors of dense star clusters. But the evolutionary fate of these young massive clusters, and whether they can become the old globular…

Modelling star formation and resolving individual stars in numerical simulations of molecular clouds and galaxies is highly challenging. Simulations on very small scales can be sufficiently well resolved to consistently follow the formation…

Astrophysics of Galaxies · Physics 2021-12-22 K. Y. Liow , S. Rieder , C. L. Dobbs , S. E. Jaffa

Stellar streams that emerge from globular clusters (GCs) are thin stellar structures spread along the orbits of progenitor clusters. Numerical modeling of these streams is essential for understanding their interaction with the host galaxy's…

Astrophysics of Galaxies · Physics 2025-01-14 Yingtian Chen , Monica Valluri , Oleg Y. Gnedin , Neil Ash

We present a Bayesian inference approach to estimating the cumulative mass profile and mean squared velocity profile of a globular cluster given the spatial and kinematic information of its stars. Mock globular clusters with a range of…

Astrophysics of Galaxies · Physics 2022-03-09 Gwendolyn M. Eadie , Jeremy J. Webb , Jeffrey S. Rosenthal

Ongoing surveys are in the process of measuring the chemical abundances in large numbers of stars, with the ultimate goal of reconstructing the formation history of the Milky Way using abundances as tracers. However, interpretation of these…

Astrophysics of Galaxies · Physics 2018-10-17 Lucia Armillotta , Mark R. Krumholz , Yusuke Fujimoto

Numerical simulations of star cluster formation have advanced greatly during the past decade, covering increasingly massive gas clouds while accounting for more and more complex physics. In this review, I discuss the present state of the…

Astrophysics of Galaxies · Physics 2013-04-18 J. M. Diederik Kruijssen

The clustered nature of star formation should produce a high degree of structure in the combined phase and chemical space in the Galactic disk. To date, observed structure of this kind has been mostly limited to bound clusters and moving…

Astrophysics of Galaxies · Physics 2019-11-06 Harshil Kamdar , Charlie Conroy , Yuan-Sen Ting , Ana Bonaca , Benjamin Johnson , Phillip Cargile

A revision of Stodolkiewicz's Monte-Carlo code is used to simulate evolution of star clusters. The new method treats each superstar as a single star and follows the evolution and motion of all individual stellar objects. The first…

Astrophysics · Physics 2009-10-30 Mirek Giersz

Understanding the macroscopic characteristics of biological complexes demands precision and specificity in statistical ensemble modeling. One of the primary challenges in this domain lies in sampling from particular subsets of the…

Machine Learning · Computer Science 2023-07-11 Justin Diamond , Markus Lill

Numerical simulations are a key tool to decipher the dynamics of gravitation. Yet, they fail to spatially reproduce the Universe we observe, limiting comparison between observations and simulations to a statistical level. This is highly…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-04 Aurélien Valade , Noam Libeskind , Daniel Pomarède , Richard Stiskalek , Yehuda Hoffman , Stefan Gottlöber , R. Brent Tully

Observations of the spatial distributions of young stars in star-forming regions can be linked to the theory of clustered star formation using spatial statistical methods. The MYStIX project provides rich samples of young stars from the…

We present a program tool, SimClust, designed for Monte-Carlo modeling of star clusters. It populates the available stellar isochrones with stars according to the initial mass function and distributes stars randomly following the analytical…

Astrophysics of Galaxies · Physics 2009-05-25 V. Deveikis , D. Narbutis , R. Stonkute , A. Bridzius , V. Vansevicius

It remains unclear how galactic environment affects star formation and stellar cluster properties. This is difficult to address in Milky Way-mass galaxy simulations because of limited resolution and less accurate feedback compared to…

Astrophysics of Galaxies · Physics 2023-07-05 Ahmad A. Ali , Clare L. Dobbs , Thomas J. R. Bending , Anne S. M. Buckner , Alex R. Pettitt

Reconstructing the density fluctuations in the early Universe that evolved into the distribution of galaxies we see today is a challenge of modern cosmology [ref.]. An accurate reconstruction would allow us to test cosmological models by…

Astrophysics · Physics 2015-06-24 Uriel Frisch , Sabino Matarrese , Roya Mohayaee , Andrei Sobolevski