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The role of different stellar feedback mechanisms in giant molecular clouds is not well understood. This is especially true for regions with many interacting clouds as would be found in a galactic spiral arm. In this paper, building on…

Astrophysics of Galaxies · Physics 2022-01-13 Ahmad A. Ali , Thomas J. R. Bending , Clare L. Dobbs

We study the effect of stellar feedback (photodissociation/ionization, radiation pressure and winds) on the evolution of a Giant Molecular Cloud (GMC), by means of a 3D radiative transfer, hydro-simulation implementing a complex chemical…

Astrophysics of Galaxies · Physics 2022-07-11 D. Decataldo , A. Lupi , A. Ferrara , A. Pallottini , M. Fumagalli

We include feedback in global hydrodynamic simulations in order to study the star formation properties, and gas structure and dynamics, in models of galactic disks. We extend previous models by implementing feedback in gravitationally bound…

Astrophysics · Physics 2009-11-13 Rahul Shetty , Eve C. Ostriker

Interstellar dust plays decisive roles in the conversion of neutral to molecular hydrogen (H_2), the thermodynamical evolution of interstellar medium (ISM), and the modification of spectral energy distributions (SEDs) of galaxies. These…

Astrophysics of Galaxies · Physics 2015-06-23 Kenji Bekki

In this paper, we examine numerically the difference between triggered and revealed star formation. We present Smoothed Particle Hydrodynamics (SPH) simulations of the impact on a turbulent 10^4 solar-mass molecular cloud of irradiation by…

Astrophysics · Physics 2008-11-26 J. E. Dale , P. C. Clark , I. A. Bonnell]

We investigate the impact of ram pressure stripping due to the intracluster medium (ICM) on star-forming disk galaxies with a multi-phase interstellar medium (ISM) maintained by strong stellar feedback. We carry out radiation-hydrodynamics…

Astrophysics of Galaxies · Physics 2020-12-16 Jaehyun Lee , Taysun Kimm , Harley Katz , Joakim Rosdahl , Julien Devriendt , Adrianne Slyz

Massive young stellar clusters are strong sources of radiation and mechanical energy. Their powerful winds and radiation pressure sweep-up interstellar gas into thin expanding shells which trap the ionizing radiation produced by the central…

Astrophysics of Galaxies · Physics 2015-06-19 Sergio Martinez-Gonzalez , Sergiy Silich , Guillermo Tenorio-Tagle

The radiative and mechanical interaction of stars with their environment drives the evolution of the ISM and of galaxies as a whole. The far-IR emission (lambda ~30 to 350 microns) from atoms and molecules dominates the cooling of the warm…

Astrophysics of Galaxies · Physics 2019-03-12 Javier R. Goicoechea , Maryvonne Gerin , Emeric Bron

We present a suite of three-dimensional, high-resolution hydrodynamic simulations that follow the evolution of a massive (10^7 M_sun) pressure confined, star-forming neutral gas cloud moving through a hot intra-cluster medium (ICM). The…

Astrophysics of Galaxies · Physics 2020-11-18 Francesco Calura , Michele Bellazzini , Annibale D'Ercole

Galaxy formation models and simulations rely on various feedback mechanisms to reproduce the observed baryonic scaling relations and galaxy morphologies. Although dwarf galaxy and giant elliptical properties can be explained using feedback…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Rok Roškar , Romain Teyssier , Oscar Agertz , Markus Wetzstein , Ben Moore

We present a new simulation suite for the star-forming interstellar medium (ISM) in galactic disks using the TIGRESS-NCR framework. Distinctive aspects of our simulation suite are: (1) sophisticated and comprehensive numerical treatments of…

With high-resolution infrared data becoming available that can probe the formation of high-mass stellar clusters for the first time, models that make testable predictions of these objects are necessary. We utilize a three-dimensional…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David G. Whelan , Kelsey E. Johnson , Barbara A. Whitney , Remy Indebetouw , Kenneth Wood

Feedback from massive stars is believed to play a critical role in shaping the galaxy mass function, the structure of the interstellar medium (ISM), and the low efficiency of star formation, but the exact form of the feedback is uncertain.…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray

A set of Smoothed Particle Hydrodynamics simulations of the influence of photoionising radiation and stellar winds on a series of 10$^{4}$M$_{\odot}$ turbulent molecular clouds with initial virial ratios of 0.7, 1.1, 1.5, 1.9 and 2.3 and…

Astrophysics of Galaxies · Physics 2017-04-19 James E. Dale

Aims. We derive a dependence of the IRX on UV slope $\beta$, stellar mass $M_\ast$, and redshift out to $z \simeq 5$, and establish consistent functional relations that can be used for correcting the UV/optical-selected galaxy samples for…

Astrophysics of Galaxies · Physics 2026-02-05 J. V. Wijesekera , M. P. Koprowski , J. S. Dunlop , K. Lisiecki , D. J. McLeod , R. J. McLure , M. J. Michałowski , M. Solar

Radiative feedback (RFB) from stars plays a key role in galaxies, but remains poorly-understood. We explore this using high-resolution, multi-frequency radiation-hydrodynamics (RHD) simulations from the Feedback In Realistic Environments…

UV radiation feedback from young massive stars plays a key role in the evolution of giant molecular clouds (GMCs) by photoevaporating and ejecting the surrounding gas. We conduct a suite of radiation hydrodynamic simulations of star cluster…

Astrophysics of Galaxies · Physics 2018-06-06 Jeong-Gyu Kim , Woong-Tae Kim , Eve C. Ostriker

We explore the possibility of the formation of globular clusters under ultraviolet (UV) background radiation. One-dimensional spherical symmetric radiation hydrodynamics (RHD) simulations by Hasegawa et al. have demonstrated that the…

Astrophysics of Galaxies · Physics 2016-09-21 Makito Abe , Masayuki Umemura , Kenji Hasegawa

We simulate a self-gravitating, turbulent cloud of 1000 Msol with photoionization and radiation pressure feedback from a 34 Msol star. We use a detailed Monte Carlo radiative transfer scheme alongside the hydrodynamics to compute…

Astrophysics of Galaxies · Physics 2018-04-23 Ahmad Ali , Tim J. Harries , Thomas A. Douglas

We study the impact of stellar winds and supernovae on the multi-phase interstellar medium using three-dimensional hydrodynamical simulations carried out with FLASH. The selected galactic disc region has a size of (500 pc)$^2$ x $\pm$ 5 kpc…

Astrophysics of Galaxies · Physics 2017-01-25 A. Gatto , S. Walch , T. Naab , P. Girichidis , R. Wünsch , S. C. O. Glover , R. S. Klessen , P. C. Clark , T. Peters , D. Derigs , C. Baczynski , J. Puls