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Energetic feedback from star clusters plays a pivotal role in shaping the dynamical evolution of giant molecular clouds (GMCs). To study the effects of stellar feedback on the star formation efficiency of the clouds and the dynamical…

Astrophysics of Galaxies · Physics 2019-05-29 Hui Li , Mark Vogelsberger , Federico Marinacci , Oleg Y. Gnedin

The formation environment of stars in massive stellar clusters is similar to the environment of stars forming in galaxies at a redshift of 1 - 3, at the peak star formation rate density of the Universe. As massive clusters are still forming…

Radiative feedback is an important consequence of cluster formation in Giant Molecular Clouds (GMCs) in which newly formed clusters heat and ionize their surrounding gas. The process of cluster formation, and the role of radiative feedback,…

Astrophysics of Galaxies · Physics 2016-07-27 Corey Howard , Ralph Pudritz , William Harris

Recent studies show the importance of the star formation feedback in changing the energetic and structure of galaxies. Dissecting the physics of the feedback is hence crucial to understand the evolution of galaxies. Full polarization radio…

Astrophysics of Galaxies · Physics 2016-11-08 Fatemeh S. Tabatabaei

Massive stars in young massive clusters insert tremendous amounts of mass and energy into their surroundings in the form of stellar winds and supernova ejecta. Mutual shock-shock collisions lead to formation of hot gas, filling the volume…

Astrophysics of Galaxies · Physics 2017-04-05 Richard Wünsch , Jan Palouš , Guillermo Tenorio-Tagle , Casiana Muñoz-Tuñón , Soňa Ehlerová

We study a model of rapidly cooling shocked stellar winds in young massive clusters and estimate the circumstances under which secondary star formation, out of the reinserted winds from a first stellar generation (1G), is possible. We have…

Astrophysics of Galaxies · Physics 2017-01-25 Richard Wünsch , Jan Palouš , Guillermo Tenorio-Tagle , Soňa Ehlerová

One of the outstanding puzzles about star formation is why it proceeds so slowly. Giant molecular clouds convert only a few percent of their gas into stars per free-fall time, and recent observations show that this low star formation rate…

Astrophysics · Physics 2015-06-24 Mark R. Krumholz

What exactly controls star formation in the Galaxy remains controversial. In particular, the role of feedback and magnetic field are still partially understood. We investigate the role played by supernovae feedback and magnetic field onto…

Astrophysics of Galaxies · Physics 2015-06-19 Patrick Hennebelle , Olivier Iffrig

We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a co-spatial mixture of cold and hot ISM components, and is formulated…

Context. Understanding the conditions in which stars and stellar clusters form is of great importance. In particular the role that stellar feedback may have is still hampered by large uncertainties. Aims. We investigate the role played by…

Astrophysics of Galaxies · Physics 2022-07-20 Antoine Verliat , Patrick Hennebelle , Marta González , Yueh-Ning Lee , Sam Geen

The accumulation, compression and cooling of the ambient interstellar medium (ISM) in large-scale flows powered by OB cluster feedback can drive the production of dense molecular clouds. We review the current state of the field, with a…

Astrophysics of Galaxies · Physics 2013-04-10 J. R. Dawson

Cosmological simulations, as well as mounting evidence from observations, have shown that supermassive black holes play a fundamental role in regulating the formation of stars throughout cosmic time. This has been clearly demonstrated in…

We study the role of star formation and stellar feedback in a galaxy being ram pressure stripped on its infall into a cluster. We use hydrodynamical wind-tunnel simulations of a massive galaxy ($M_\text{star} = 10^{11} M_\odot$) moving into…

Young massive clusters (YMCs) are dense aggregates of young stars and are often speculated as potential precursors to globular clusters. However, the formation mechanism of massive and compact gas clumps that precede YMCs remains unknown.…

Astrophysics of Galaxies · Physics 2024-06-19 Ryunosuke Maeda , Tsuyoshi Inoue , Kazuyuki Omukai , Yasuo Fukui , Kisetsu Tsuge

Galactic superbubbles are triggered by stellar feedback in the discs of star-forming galaxies. They are important in launching galactic winds, which play a key role in regulating the mass and energy exchange in galaxies. Observations can…

Astrophysics of Galaxies · Physics 2024-07-17 Osmer Suárez-López , Andrés S. Villares , Wladimir E. Banda-Barragán

We review the structural properties of giant extragalactic HII regions and HII galaxies based on two dimensional hydrodynamic calculations, and propose an evolutionary sequence that accounts for their observed detailed structure. The model…

Astrophysics · Physics 2009-11-11 G. Tenorio-Tagle , C. Munoz-Tunon , E. Perez , S. Silich , E. Telles

We use two hydrodynamical simulations (with and without photoionising feedback) of the self-consistent evolution of molecular clouds (MCs) undergoing global hierarchical collapse (GHC), to study the effect of the feedback on the structural…

Astrophysics of Galaxies · Physics 2020-09-25 Alejandro González-Samaniego , Enrique Vazquez-Semadeni

The shining of quasars is a likely trigger of massive galatic winds, able to remove most ISM from a star-forming spheroid. However, the mechanism responsible for the deposition of energy into the ISM is still unclear. Starting from a model…

Astrophysics · Physics 2014-10-13 P. Monaco , F. Fontanot

We present a large suite of MHD simulations of turbulent, star-forming giant molecular clouds(GMCs) with stellar feedback, extending previous work by simulating 10 different random realizations for each point in the parameter space of cloud…

In this paper, we explore the significant, non-linear impact that stellar winds have on H ii regions. We perform a parameter study using three-dimensional radiative magnetohydrodynamic simulations of wind and ultraviolet radiation feedback…

Astrophysics of Galaxies · Physics 2024-02-02 Sam Geen , Rebekka Bieri , Alex de Koter , Taysun Kimm , Joakim Rosdahl
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