English
Related papers

Related papers: Supernova feedback in a local vertically stratifie…

200 papers

We use high-resolution cosmological simulations to compare the effect of bursty star formation histories on dwarf galaxy structure for two different subgrid supernovae (SNe) feedback models in dwarf galaxies with stellar masses from $5000…

The origin and the magnitude of the inter-galactic magnetic field is of primordial importance in the global picture of magnetic field evolution, as it is considered to be the missing link between galactic magnetic fields and cluster…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Yohan Dubois , Romain Teyssier

Some stars are known to explode at the end of their lives, called supernovae (SNe). The substantial amount of matter and energy that SNe release provides significant feedback to star formation and gas dynamics in a galaxy. SNe release a…

Astrophysics of Galaxies · Physics 2023-11-16 Keiya Hirashima , Kana Moriwaki , Michiko S. Fujii , Yutaka Hirai , Takayuki R. Saitoh , Junichiro Makino , Shirley Ho

Supernova (SN) explosions can potentially affect the structure and evolution of circumnuclear disks in active galactic nuclei (AGN). Some previous studies have suggested that a relatively low rate of SN explosions can provide an effective…

High Energy Astrophysical Phenomena · Physics 2021-01-13 A. Moranchel-Basurto , F. J. Sánchez-salcedo , Raúl O. Chametla , P. F. Velázquez

We use magnetohydrodynamical simulations of converging warm neutral medium flows to analyse the formation and global evolution of magnetised and turbulent molecular clouds subject to supernova feedback from massive stars. We show that…

Astrophysics of Galaxies · Physics 2016-04-27 Bastian Körtgen , Daniel Seifried , Robi Banerjee , Enrique Vázquez-Semadeni , Manuel Zamora-Avilés

We investigated the impact of supernova feedback in gas-rich dwarf galaxies experiencing a low-to-moderate star formation rate, typical of relatively quiescent phases between starbursts. We calculated the long term evolution of the ISM and…

Astrophysics of Galaxies · Physics 2015-06-23 C. Melioli , F. Brighenti , A. D'Ercole

Galactic outflows are ubiquitously observed in star-forming disk galaxies and are critical for galaxy formation. Supernovae (SNe) play the key role in driving the outflows, but there is no consensus as to how much energy, mass and metal…

Astrophysics of Galaxies · Physics 2017-06-14 Miao Li , Greg L. Bryan , Jeremiah P. Ostriker

Supernova energy drives interstellar medium (ISM) turbulence and can help launch galactic winds. What difference does it make if $10\%$ of the energy is initially deposited into cosmic rays? To answer this question and study cosmic-ray…

Astrophysics of Galaxies · Physics 2025-07-15 Roark Habegger , Ellen G. Zweibel

The interplay of star formation and supernova (SN) feedback in galaxy formation is a key element for understanding galaxy evolution. Since these processes occur at small scales, it is necessary to have sub-grid models that recover their…

Astrophysics of Galaxies · Physics 2022-09-15 Arturo Nuñez-Castiñeyra , Emmanuel Nezri , Julien Devriendt , Romain Teyssier

The faintest Local Group galaxies found lurking in and around the Milky Way halo provide a unique test bed for theories of structure formation and evolution on small scales. Deep Subaru and Hubble Space Telescope photometry demonstrates…

Astrophysics of Galaxies · Physics 2019-10-09 Donatella Romano , Francesco Calura , Annibale D'Ercole , C. Gareth Few

We use the EAGLE cosmological simulations to study the evolution of the vertical velocity dispersion of cold gas, $\sigma_{z}$, in central disc galaxies and its connection to stellar feedback, gravitational instabilities, cosmological gas…

Astrophysics of Galaxies · Physics 2023-07-26 Esteban Jiménez , Claudia del P. Lagos , Aaron D. Ludlow , Emily Wisnioski

Gravitational instabilities play an important role in galaxy evolution and in shaping the interstellar medium (ISM). The ISM is observed to be highly turbulent, meaning that observables like the gas surface density and velocity dispersion…

Astrophysics of Galaxies · Physics 2015-06-23 Oscar Agertz , Alessandro B. Romeo , Kearn Grisdale

We numerically simulate some of the most critical physical processes in galaxy formation: The supernova feedback, in conjunction with gasdynamics and gravity, plays a crucial role in determining how galaxies arise within the context of a…

Astrophysics · Physics 2015-06-24 G. Yepes , R. Kates , A. Khokhlov , A. Klypin

We study the dependence of fragmentation in massive gas-rich galaxy disks at $z > 1$ on feedback model and hydrodynamical method, employing the GASOLINE2 SPH code and the lagrangian mesh-less code GIZMO in finite mass mode. We compare…

Astrophysics of Galaxies · Physics 2016-10-19 Lucio Mayer , Valentina Tamburello , Alessandro Lupi , Ben Keller , James Wadsley , Piero Madau

Successful models of the low redshift circumgalactic medium (CGM) must account for (1) a large amount of gas, (2) relatively slow gas velocities, (3) a high degree of metal enrichment, (4) the similar absorption properties around both…

Astrophysics of Galaxies · Physics 2018-09-12 Cassandra Lochhaas , Todd A. Thompson , Eliot Quataert , David H. Weinberg

In an attempt to determine the outer scale of turbulence driven by localized sources, such as supernova explosions in the interstellar medium, we consider a forcing function given by the gradient of gaussian profiles localized at random…

Astrophysics · Physics 2007-05-23 Antony J. Mee , Axel Brandenburg

Feedback from active galactic nuclei (AGN) can strongly impact the host galaxies by driving high-velocity winds that impart substantial energy and momentum to the interstellar medium (ISM). In this work, we study the impact of these winds…

Cosmological hydrodynamical simulations of galaxy formation in representative regions of the Universe typically need to resort to subresolution models to follow some of the feedback processes crucial for galaxy formation. Here, we show that…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Ewald Puchwein , Volker Springel

Recent observational results found a bend in the Tully-Fisher Relation in such a way that low mass systems lay below the linear relation described by more massive galaxies. We intend to investigate the origin of the observed features in the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Maria E. De Rossi , Patricia B. Tissera , Susana E. Pedrosa

We model how repeated supernova explosions in high-redshift dwarf starburst galaxies drive superbubbles and winds out of the galaxies. We compute the efficiencies of metal and mass ejection and energy transport from the galactic potentials,…

Astrophysics · Physics 2009-11-10 A. Fujita , M. -M. Mac Low , A. Ferrara , A. Meiksin