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Related papers: On the interplay between star formation and feedba…

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The flat star formation (SF) history of the Milky Way (MW) requires gas in the Galactic disc to be replenished, most likely from a reservoir outside the Galaxy. Such a replenishment may be achieved by a form of `positive' feedback, whereby…

Astrophysics of Galaxies · Physics 2020-09-09 Alexander Hobbs , Robert Feldmann

As computational resolution of modern cosmological simulations reach ever so close to resolving individual star-forming clumps in a galaxy, a need for "resolution-appropriate" physics for a galaxy-scale simulation has never been greater. To…

Astrophysics of Galaxies · Physics 2020-01-08 Ji-hoon Kim , John H. Wise , Tom Abel , Yongseok Jo , Joel R. Primack , Philip F. Hopkins

The reservoir of molecular gas (H$_{\rm 2}$) represents the fuel for the star formation (SF) of a galaxy. Connecting the star formation rate (SFR) to the available H$_{\rm 2}$ is key to accurately model SF in cosmological simulations of…

Self-regulation of star formation in disks is controlled by two dimensionless parameters: the Toomre parameter for gravitational instability and the porosity of the interstellar medium to supernova remnant-heated gas. An interplay between…

Astrophysics · Physics 2010-11-23 Joseph Silk

The process of radiative feedback in Giant Molecular Clouds (GMCs) is an important mechanism for limiting star cluster formation through the heating and ionization of the surrounding gas. We explore the degree to which radiative feedback…

Astrophysics of Galaxies · Physics 2017-07-26 Corey Howard , Ralph Pudritz , William Harris

Once the first sources have formed, their mass deposition, energy injection and emitted radiation can deeply affect the subsequent galaxy formation process and influence the evolution of the IGM via a number of so-called feedback effects.…

Astrophysics · Physics 2009-06-23 Benedetta Ciardi

A simple model for star formation based on supernova (SN) feedback and gravitational heating via the collapse of perturbations in gravitationally unstable disks reproduces the Schmidt-Kennicutt relation between the star formation rate (SFR)…

Astrophysics of Galaxies · Physics 2021-12-14 Adi Nusser , Joseph Silk

How do late type spiral galaxies form within the context of a CDM cosmology? We contrast N-body, smoothed particle hydrodynamical simulations of galaxy formation which employ two different supernova feedback mechanisms. Observed mass and…

Astrophysics · Physics 2009-11-10 Chris B. Brook , Daisuke Kawata , Brad K. Gibson , Chris Flynn

Recent studies show the importance of feedback in the evolution of the star formation rate in the Universe. However, the nature and physics of the feedback are still pressing questions. Radio continuum observations can provide unique…

Astrophysics of Galaxies · Physics 2016-04-20 F. S. Tabatabaei , J. Braine , C. Kramer , E. Schinnerer , J. Beckman , J. Knapen

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

We explore when supernovae can (and cannot) regulate the star formation and bulge growth in galaxies based on a sample of 18 simulated galaxies. The simulations include key physics such as evaporation and conduction, neglected in prior…

Astrophysics of Galaxies · Physics 2016-08-17 B. W. Keller , J. Wadsley , H. M. P Couchman

We present results from thirteen cosmological simulations that explore the parameter space of the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) simulation project. Four of the simulations follow the evolution of a…

The spatial decorrelation of dense molecular gas and young stars observed on $\lesssim 1$ kiloparsec scales in nearby galaxies indicates rapid dispersal of star-forming regions by stellar feedback. We explore the sensitivity of this…

Astrophysics of Galaxies · Physics 2021-09-15 Vadim A. Semenov , Andrey V. Kravtsov , Nickolay Y. Gnedin

We argue that the interplay between cosmic rays, the initial mass function, and star formation plays a crucial role in regulating the star-forming "main sequence". To explore these phenomena we develop a toy model for galaxy evolution in…

Astrophysics of Galaxies · Physics 2020-02-19 Charles L. Steinhardt , Adam S. Jermyn , Jackie Lodman

We present hydrodynamic simulations of the evolution of self-gravitating dense gas on scales of 1 kiloparsec down to < parsec in a galactic disk, designed to study dense clump formation from giant molecular clouds (GMCs). These structures…

Astrophysics of Galaxies · Physics 2015-06-12 Sven Van Loo , Michael J. Butler , Jonathan C. Tan

Stellar feedback -- stars regulating further star formation through the injection of energy and momentum into the interstellar medium -- operates through a complex set of processes that originate in star clusters but shape entire galaxies.…

One of the crucial components in simulating the growth and evolution of galaxies within a cosmological framework is the modeling of star formation (SF) and its corresponding feedback. Traditionally, the implemented SF law follows the…

Astrophysics of Galaxies · Physics 2025-08-14 Ezequiel Lozano , Cecilia Scannapieco , Sebastián E. Nuza , Yago Ascasibar , Luis Biaus , Federico G. Iza

We investigate the spatially-resolved star formation relation using a galactic disk formed in a comprehensive high-resolution (3.8 pc) simulation. Our new implementation of stellar feedback includes ionizing radiation as well as supernova…

Astrophysics of Galaxies · Physics 2018-03-12 Ji-hoon Kim , Mark R. Krumholz , John H. Wise , Matthew J. Turk , Nathan J. Goldbaum , Tom Abel

In cosmological simulations of large-scale structure star formation and feedback in galaxies are modelled by so-called sub-grid models, that represent a physically motivated approximation of processes occurring below the resolution limit.…

Astrophysics of Galaxies · Physics 2025-09-24 Eirini Batziou , Ulrich P. Steinwandel , Klaus Dolag , Milena Valentini

We present an analytic model for how momentum deposition from stellar feedback simultaneously regulates star formation and drives outflows in a turbulent interstellar medium (ISM). Because the ISM is turbulent, a given patch of ISM exhibits…

Astrophysics of Galaxies · Physics 2017-02-08 Christopher C. Hayward , Philip F. Hopkins
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