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Stellar feedback in galactic bulges plays an essential role in shaping the evolution of galaxies. To quantify this role and facilitate comparisons with X-ray observations, we conduct 3D hydrodynamical simulations with the adaptive mesh…

Astrophysics of Galaxies · Physics 2014-11-18 Shikui Tang , Q. Daniel Wang , Mordecai-Mark Mac Low , M. Ryan Joung

We examine the role of energy feedback in shaping the distribution of metals within cosmological hydrodynamical simulations of L* disc galaxies. While negative abundance gradients today provide a boundary condition for galaxy evolution…

Astrophysics of Galaxies · Physics 2015-06-15 B. K. Gibson , K. Pilkington , C. B. Brook , G. S. Stinson , J. Bailin

We apply correlation analysis to random fields in numerical simulations of the supernova-driven interstellar medium (ISM) with the magnetic field produced by dynamo action. We solve the thermo-magnetohydrodynamic (MHD) equations in a…

Astrophysics of Galaxies · Physics 2017-11-29 James F. Hollins , Graeme R. Sarson , Anvar Shukurov , Andrew Fletcher , Frederick A. Gent

The formation and evolution of galaxies have proved sensitive to the inclusion of stellar feedback, which is therefore crucial to any successful galaxy model. We present INFERNO, a new model for hydrodynamic simulations of galaxies, which…

Astrophysics of Galaxies · Physics 2023-03-15 Eric P. Andersson , Oscar Agertz , Florent Renaud , Romain Teyssier

Observations and theory suggest that Type Ia supernovae (SNIa) heating and mass loss from asymptotic giant branch (AGB) stars play a crucial role in the interstellar medium (ISM) of massive galaxies. We perform 3D hydrodynamic simulations…

Astrophysics of Galaxies · Physics 2025-08-14 Rajsekhar Mohapatra , Eliot Quataert , Drummond Fielding , Minghao Guo

Supernova (SN) blast waves inject energy and momentum into the interstellar medium (ISM), control its turbulent multiphase structure and the launching of galactic outflows. Accurate modelling of the blast wave evolution is therefore…

Astrophysics of Galaxies · Physics 2016-05-25 Sebastian Haid , Stefanie Walch , Thorsten Naab , Daniel Seifried , Jonathan Mackey , Andrea Gatto

Mechanical feedback from massive stars, primarily from supernovae, can dominate ISM structuring and phase balance, thereby profoundly affecting galactic evolutionary processes. Our understanding of mechanical feedback is based on the…

Astrophysics · Physics 2008-11-26 M. S. Oey

We present results of a new feedback scheme implemented in the Munich galaxy formation model. The new scheme includes a dynamical treatment of galactic winds powered by supernovae explosions and stellar winds in a cosmological context. We…

Astrophysics · Physics 2008-11-26 Serena Bertone , Gabriella De Lucia , Peter A. Thomas

We present results of cosmological simulations of disk galaxies carried out with the GADGET-3 TreePM+SPH code, where star formation and stellar feedback are described using our MUlti Phase Particle Integrator (MUPPI) model. This description…

Astrophysics of Galaxies · Physics 2014-11-17 Giuseppe Murante , Pierluigi Monaco , Stefano Borgani , Luca Tornatore , Klaus Dolag , David Goz

(abridged) We investigate the properties of feedback-driven shocks in 8 nearby starburst galaxies using narrow-band imaging data from the Hubble Space Telescope (HST). We identify the shock--ionized component via the line diagnostic diagram…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-19 Sungryong Hong , Daniela Calzetti , John S. Gallagher , Crystal L. Martin , Christopher J. Conselice , Anne Pellerin

Feedback from massive stars shapes the ISM and affects the evolution of galaxies, but its mechanisms acting at the small scales ($\sim 10$ pc) are still not well constrained observationally, especially in the low-metallicity environments.…

Astrophysics of Galaxies · Physics 2022-10-25 Ivan S. Gerasimov , Oleg V. Egorov , Tatiana A. Lozinskaya , Alexei V. Moiseev , Dmitry V. Oparin

We present a multi-phase representation of the ISM in NB-TSPH simulations of galaxy formation and evolution with particular attention to the case of early-type galaxies. Cold gas clouds are described by the so-called sticky particles…

Astrophysics · Physics 2009-11-13 Emiliano Merlin , Cesare Chiosi

We investigate the effects of AGN feedback on the cosmological evolution of an isolated elliptical galaxy by performing two-dimensional high-resolution hydrodynamical numerical simulations. The inner boundary of the simulation is chosen so…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Feng Yuan , Doosoo Yoon , Ya-Ping Li , Zhao-Ming Gan , Luis C. Ho , Fulai Guo

Understanding what shapes the cold gas component of galaxies, which both provides the fuel for star formation and is strongly affected by the subsequent stellar feedback, is a crucial step towards a better understanding of galaxy evolution.…

We present an update to the multiphase SPH galaxy formation code by Scannapieco et al. We include a more elaborate treatment of the production of metals, cooling rates based on individual element abundances, and a scheme for the turbulent…

Astrophysics of Galaxies · Physics 2013-07-17 Michael Aumer , Simon White , Thorsten Naab , Cecilia Scannapieco

We study the evolution of multiple supernova (SN) explosions inside a pre-exiting cavity blown by winds from massive progenitor stars. Hydrodynamic simulations in one-dimensional spherical geometry, including radiative cooling and thermal…

Astrophysics · Physics 2008-11-26 Hyunjin Cho , Hyesung Kang

The time evolution of initially balanced, rapidly rotating models for an isolated disk of highly flattened galaxies of stars is calculated. The method of direct integration of the Newtonian equations of motion of stars over a time span of…

Astrophysics · Physics 2007-05-23 Evgeny Griv , Michael Gedalin , Edward Liverts , David Eichler , Yehoshua Kimhi , Chi Yuan

Using high-resolution simulations with explicit treatment of stellar feedback physics based on the FIRE (Feedback in Realistic Environments) project, we study how galaxy formation and the interstellar medium (ISM) are affected by magnetic…

Regulating the available gas mass inside galaxies proceeds through a delicate balance between inflows and outflows, but also through the internal depletion of gas due to star formation. At the same time, stellar feedback is the internal…

Astrophysics of Galaxies · Physics 2021-02-17 Michael Kretschmer , Romain Teyssier

State of the art models of the ISM use adaptive mesh refinement to capture small scale structures, by refining on the fly those regions of the grid where density and pressure gradients occur, keeping at the same time the existing resolution…

Astrophysics · Physics 2007-05-23 M. A. de Avillez , Dieter Breitschwerdt