English
Related papers

Related papers: Accretion and Feedback in Star Cluster Formation

200 papers

I review recent numerical and analytical work on the feedback from both low- and high-mass cluster stars into their gasoeus environment. The main conclusions are that i) outflow driving appears capable of maintaing the turbulence in…

Astrophysics of Galaxies · Physics 2015-05-20 Enrique Vazquez-Semadeni

Stars form in dense cores within molecular clouds and newly formed stars influence their natal environments. How stellar feedback impacts core properties and evolution is subject to extensive investigation. We performed a hierarchical…

Astrophysics of Galaxies · Physics 2024-10-23 K. R. Neralwar , D. Colombo , S. Offner , F. Wyrowski , K. M. Menten , A. Karska , M Y. Grudić , S. Neupane

We use simulations with realistic models for stellar feedback to study galaxy mergers. These high resolution (1 pc) simulations follow formation and destruction of individual GMCs and star clusters. The final starburst is dominated by in…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-02 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist , Desika Narayanan , Christopher C. Hayward , Norman Murray

We perform two dimensional hydrodynamic numerical simulations to study the positive active galactic nucleus feedback which triggers, rather than suppresses, star formation. Recently, it was shown by Nayakshin et al. and Ishibashi et al.…

Astrophysics of Galaxies · Physics 2015-06-15 Chao Liu , Zhao-ming Gan , Fu-guo Xie

Most, perhaps all, stars go through a phase of vigorous outflow during formation. We examine, through 3D MHD simulation, the effects of protostellar outflows on cluster formation. We find that the initial turbulence in the cluster-forming…

Astrophysics · Physics 2009-11-13 Zhi-Yun Li , Fumitaka Nakamura

How stellar clusters disrupt, and over what timescales, is intimately linked with how they form. Here, we review the theory and observations of cluster disruption, both the suggested initial rapid dissolution phase (infant mortality) and…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-13 Nate Bastian

We simulate the formation of second-generation stars in young clusters with masses of $10^{5}$ and $10^6\ {\rm M_\odot}$ within $30-100\ {\rm Myr}$ after the formation of clusters. We assume the clusters move through a uniform interstellar…

Astrophysics of Galaxies · Physics 2023-12-13 Asiyeh Yaghoobi , Joakim Rosdahl , Francesco Calura , Sareh Ataiee

Properties of normal galactic star formation, including the density dependence, threshold density, turbulent scaling relations, and clustering properties, are applied to the formation of galactic bulges. One important difference is that the…

Astrophysics · Physics 2009-10-31 B. G. Elmegreen

The star formation history of galaxies is a complex process usually considered to be stochastic in nature, for which we can only give average descriptions such as the color-density relation. In this work we follow star-forming gas particles…

Astrophysics of Galaxies · Physics 2014-12-05 M. A. Aragon-Calvo , Mark C. Neyrinck , Joseph Silk

We discuss three different ways in which stellar feedback may alter the outcome of star cluster formation: triggering or suppressing star formation, and redistributing the stellar population in space. We use detailed Smoothed Particle…

Astrophysics of Galaxies · Physics 2012-08-17 James E. Dale , Barbara Ercolano , Ian Bonnell

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

According to the hierarchical model, small galaxies form first and merge together to form bigger objects. In parallel, galaxies assemble their mass through accretion from cosmic filaments. Recently, the increased spatial resolution of the…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-30 Benjamin L'Huillier , Francoise Combes , Benoit Semelin

The empirical laws of star formation suggest that galactic-scale gravity is involved, but they do not identify the actual triggering mechanisms for clusters in the final stages. Many other triggering processes satisfy the empirical laws…

Astrophysics · Physics 2009-11-07 Bruce G. Elmegreen

We propose that bound, young massive stellar clusters form from dense clouds that have escape speeds greater than the sound speed in photo-ionized gas. In these clumps, radiative feedback in the form of gas ionization is bottled up,…

Astrophysics of Galaxies · Physics 2015-06-11 Eli Bressert , Adam Ginsburg , Cara Battersby , John Bally , Steven Longmore , Leonardo Testi

Mergers of massive gas-rich galaxies trigger violent starbursts that - over timescales of $> 100$ Myr and regions $> 10$ kpc - form massive and compact star clusters comparable in mass and radii to Galactic globular clusters. The star…

Astrophysics · Physics 2009-11-07 Uta Fritze-v. Alvensleben

The study of the internal structure of star clusters provides important clues concerning their formation mechanism and dynamical evolution. There are both observational and numerical evidences indicating that open clusters evolve from an…

Astrophysics of Galaxies · Physics 2011-09-15 Emilio Alfaro , Nestor Sanchez

The slow rotation of some young stars and the extreme rotation periods of some Ap stars have so far defied explanation. The absence of sufficiently efficient braking mechanisms for newly formed stars points to the star formation process…

Solar and Stellar Astrophysics · Physics 2018-10-23 H. C. Spruit

Their ubiquity and extreme densities make star clusters probes of prime importance of galaxy evolution. Old globular clusters keep imprints of the physical conditions of their assembly in the early Universe, and younger stellar objects,…

Astrophysics of Galaxies · Physics 2018-05-02 Florent Renaud

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

It has been known for more than 30 years that star formation in giant molecular clouds (GMCs) is slow, in the sense that only ~1% of the gas forms stars every free-fall time. This result is entirely independent of any particular model of…

Astrophysics · Physics 2008-11-26 Mark R. Krumholz , Jonathan C. Tan