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Although supernova explosions and stellar winds happens at scales bellow 100 pc, they affect the interstellar medium(ISM) and galaxy formation. We use cosmological N-body+Hydrodynamics simulations of galaxy formation, as well as simulations…

Astrophysics · Physics 2009-11-13 Daniel Ceverino , Anatoly Klypin

We present simulations of the formation and evolution of clusters in spiral arms. The simulations follow two different spiral arm regions, and the total gas mass is varied to produce a range of different mass clusters. We find that…

Astrophysics of Galaxies · Physics 2022-09-14 C. L. Dobbs , T. J. R. Bending , A. R. Pettitt , A. S. M. Buckner , M. R. Bate

We study the formation of star clusters in molecular clouds by performing three-dimensional radiation hydrodynamics simulations with far ultraviolet (FUV; $6 ~{\rm eV} \leqq h \nu \leqq 13.6 ~{\rm eV}$) and extreme ultraviolet (EUV; $h\nu…

Astrophysics of Galaxies · Physics 2022-02-09 Hajime Fukushima , Hidenobu Yajima

We apply gravity-based and density-based methods to identify clouds in numerical simulations of the star-forming, three-phase interstellar medium (ISM), and compare their properties and their global correlation with the star formation rate…

Astrophysics of Galaxies · Physics 2020-07-29 S. Alwin Mao , Eve C. Ostriker , Chang-Goo Kim

Filamentary structures are ubiquitous in high-mass star-forming molecular clouds. Their relation with high-mass star formation is still to be understood. Here we report interferometric observations toward 8 filamentary high-mass…

It is now widely accepted that dense filaments of molecular gas are integral to the process of stellar birth. While numerical simulations have succeeded in reproducing filamentary structure in turbulent gas and analytic calculations have…

Astrophysics of Galaxies · Physics 2015-06-23 S. Anathpindika , J. Freundlich

Galactic nuclei and globular clusters act as laboratories in which nature experiments with normal stars, neutron stars and black holes, through collisions and through the formation of bound states, in the form of binaries. The main…

Astrophysics · Physics 2007-05-23 Piet Hut

We present a suite of 3D multi-physics MHD simulations following star formation in isolated turbulent molecular gas disks ranging from 5 to 500 parsecs in radius. These simulations are designed to survey the range of surface densities…

The nearest young stellar groups are associated with "hubs" of column density exceeding 10^22 cm^-2, according to recent observations. These hubs radiate multiple "filaments" of parsec length, having lower column density and fewer stars.…

Astrophysics of Galaxies · Physics 2009-07-22 Philip C. Myers

We simulate the Galactic Center nonthermal filaments as magnetized wakes formed dynamically from amplification of a weak (tens of $\mu$G) global magnetic field through the interaction of molecular clouds with a Galactic Center wind. One of…

Astrophysics · Physics 2009-11-07 Russell B. Dahlburg , Giorgio Einaudi , T. N. LaRosa , Steven N. Shore

We have conducted ALMA CO isotopes and 1.3 mm continuum observations toward filamentary molecular clouds of the N159W-South region in the Large Magellanic Cloud with an angular resolution of $\sim$0"25 ($\sim$0.07 pc). Although the previous…

We simulate the formation and chemodynamical evolution of 128 elliptical galaxies using a GRAPE-SPH code that includes various physical processes that are associated with the formation of stellar systems: radiative cooling, star formation,…

Astrophysics · Physics 2009-11-11 Chiaki Kobayashi

Filaments represent a key structure during the early stages of the star formation process. Simulations show filamentary structure commonly formed before and during the formation of cores. Aims. The Serpens Core represents an ideal…

Astrophysics of Galaxies · Physics 2015-12-16 V. Roccatagliata , J. E. Dale , T. Ratzka , L. Testi , A. Burkert , C. Koepferl , A. Sicilia-Aguilar , C. Eiroa , B. Gaczkowski

We have invented a new algorithm to use with self-gravitating SPH Star Formation codes. The new method is designed to enable SPH simulations to self-regulate their numerical resolution, i.e. the number of SPH particles; the latter is…

Astrophysics · Physics 2007-05-23 Spyridon Kitsionas

To what extent magnetic fields affect how molecular clouds (MCs) fragment and create dense structures is an open question. We present a numerical study of cloud fragmentation using the SILCC-Zoom simulations. These simulations follow the…

Astrophysics of Galaxies · Physics 2023-07-26 S. Ganguly , S. Walch , D. Seifried , S. D. Clarke , M. Weis

We study giant molecular cloud (GMC) collisions and their ability to trigger star cluster formation. We further develop our three dimensional magnetized, turbulent, colliding GMC simulations by implementing star formation sub-grid models.…

Astrophysics of Galaxies · Physics 2017-06-14 Benjamin Wu , Jonathan C. Tan , Duncan Christie , Fumitaka Nakamura , Sven Van Loo , David Collins

We examine simulations of isolated galaxies to analyse the effects of localised feedback on the formation and evolution of molecular clouds. Feedback contributes to turbulence and the destruction of clouds, leading to a population of clouds…

Astrophysics of Galaxies · Physics 2015-06-19 David J. Williamson , Robert J. Thacker , James Wurster , Brad K. Gibson

Massive star-forming regions (MSFRs) are commonly associated with hub-filament systems (HFSs) and sites of cloud-cloud collision (CCC). Recent observational studies of some MSFRs suggest a possible connection between CCC and the formation…

Astrophysics of Galaxies · Physics 2024-08-14 A. K. Maity , T. Inoue , Y. Fukui , L. K. Dewangan , H. Sano , R. I. Yamada , K. Tachihara , N. K. Bhadari , O. R. Jadhav

Galaxy evolution is sensitive to how stars inject feedback into their surroundings. In particular, stellar feedback from star clusters strongly affects gas motions and the baryonic cycle, with more massive clusters having stronger effects.…

Astrophysics of Galaxies · Physics 2026-01-14 Luanna Veroneze Quinalha , Eric P. Andersson , Mordecai-Mark Mac Low

We present a new model for the formation of stellar halos in dwarf galaxies. We demonstrate that the stars and star clusters that form naturally in the inner regions of dwarfs are expected to migrate from the gas rich, star forming centre…

Astrophysics of Galaxies · Physics 2012-08-10 Aaron J. Maxwell , James Wadsley , H. M. P. Couchman , Sergey Mashchenko