English
Related papers

Related papers: Survivability of a star cluster in a dispersing mo…

200 papers

It is often argued that young stellar clusters suffer a significant infant mortality that is partly related to the expulsion of dust and gas in their early phases caused by radiation pressure from hot stars and supernovae. Near-infrared…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-11 P. Grosboel , H. Dottori

We describe an overall picture of galactic-scale star formation. Recent high-resolution magneto-hydrodynamical simulations of two-fluid dynamics with cooling/heating and thermal conduction have shown that the formation of molecular clouds…

Astrophysics of Galaxies · Physics 2015-07-29 Shu-ichiro Inutsuka , Tsuyoshi Inoue , Kazunari Iwasaki , Takashi Hosokawa

We studied the formation process of star clusters using high-resolution N-body/smoothed particle hydrodynamcs simulations of colliding galaxies. The total number of particles is 1.2x10^8 for our high resolution run. The gravitational…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Takayuki R. Saitoh , Hiroshi Daisaka , Eiichiro Kokubo , Junichiro Makino , Takashi Okamoto , Kohji Tomisaka , Keiichi Wada , Naoki Yoshida

Star cluster formation in giant molecular clouds involves the local collapse of the cloud into small gas-rich subclusters, which can then subsequently collide and merge to build up the final star cluster(s). In this paper, we simulate…

Astrophysics of Galaxies · Physics 2022-05-25 Jeremy Karam , Alison Sills

Current empirical evidence on the star-formation processes in the extreme, high-pressure environments induced by galaxy encounters (mostly based on high-resolution Hubble Space Telescope observations) strongly suggests that star CLUSTER…

Astrophysics · Physics 2015-11-11 Richard de Grijs

Young massive stars in compact stellar clusters could end their evolution as core-collapse supernovae a few million years after the cluster was built. The blast wave of a supernova propagates through the inner cluster region with multiple…

High Energy Astrophysical Phenomena · Physics 2023-11-06 D. V. Badmaev , A. M. Bykov , M. E. Kalyashova

We investigate the triggering of star formation and the formation of stellar clusters in molecular clouds that form as the ISM passes through spiral shocks. The spiral shock compresses gas into $\sim$100 pc long main star formation ridge,…

Astrophysics of Galaxies · Physics 2017-10-13 R. Smilgys , I. A. Bonnell

Recent observations show that small, young, stellar groupings of ~10 to 40 members tend of have a centrally-located most massive member, reminiscent of mass segregation seen in large clustered systems. Here, we analyze hydrodynamic…

Astrophysics of Galaxies · Physics 2015-06-18 Helen Kirk , Stella S. R. Offner , Kayla Redmond

We model the formation of star clusters in a dwarf galaxy progenitor during the first $700 ~{\rm Myr}$ of cosmic history using a cosmological radiation-hydrodynamic simulation with a sub-grid star formation efficiency (SFE) model calibrated…

Astrophysics of Galaxies · Physics 2025-10-03 Fred Angelo Batan Garcia , Massimo Ricotti , Kazuyuki Sugimura

Utilizing a series of N-body simulations, we argue that gravitationally bound stellar clusters of modest population evolve very differently from the picture presented by classical dynamical relaxation theory. The system's most massive stars…

Solar and Stellar Astrophysics · Physics 2015-05-19 Joseph M. Converse , Steven W. Stahler

Massive stars are mainly found in stellar associations. These massive star clusters occur in the heart of giant molecular clouds. The strong stellar wind activity in these objects generates large bubbles and induces collective effects that…

High Energy Astrophysical Phenomena · Physics 2016-06-22 Gilles Maurin , Alexandre Marcowith , Nukri Komin , Fabien Krayzel , Giovanni Lamanna

Using numerical simulations of the formation and evolution of stellar clusters within molecular clouds, we show that the stars in clusters formed within collapsing molecular cloud clumps exhibit a constant velocity dispersion regardless of…

A large fraction of stars form within young embedded clusters, and these environments produce a substantial ultraviolet (UV) background radiation field, which can provide feedback on the star formation process. To assess the possible…

Astrophysics · Physics 2009-11-13 M. Fatuzzo , F. C. Adams

In this work, we aim to answer one crucial question behind the discrepancy between chemical trends of field stars and clusters in the Galactic disk: is the chemical gradient mismatch driven by cluster migration and differential…

Astrophysics of Galaxies · Physics 2025-10-16 Alessa I. Wiggins , Sarah Loebman , Peter Frinchaboy

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 star formation efficiency (SFE) of a star cluster is thought to be the critical factor in determining if the cluster can survive for a significant (>50 Myr) time. There is an often quoted critical SFE of ~30 per cent for a cluster to…

Astrophysics · Physics 2009-12-04 Simon P Goodwin

We study analytically the disruptive effect of instantaneous gas removal from a cluster containing O stars. We setup an iterative calculation based on the stellar velocity distribution function to compute the fraction of stars that remain…

Astrophysics · Physics 2011-07-18 C. M. Boily , P. Kroupa

More than 50 years have elapsed since the first studies of star clusters in the Magellanic Clouds. The wealth of data accumulated since then has not only revealed a large cluster system, but also a diversified one, filling loci in the age,…

Astrophysics · Physics 2009-11-13 B. X. Santiago

During the last two decades, the focus of star formation research has shifted from understanding the collapse of a single dense core into a star to studying the formation hundreds to thousands of stars in molecular clouds. In this chapter,…

Astrophysics · Physics 2008-01-04 S. T. Megeath , Zhi-Yun Li , Aake Nordlund

We investigate the formation of star clusters in an unbound GMC, where the supporting kinetic energy is twice as large as the cloud's self-gravity. This cloud manages to form a series of star clusters and disperse, all within roughly 2…

Astrophysics · Physics 2014-10-13 Paul C. Clark , Ian A. Bonnell , Hans Zinnecker , Matthew R. Bate