English
Related papers

Related papers: The Characteristic Momentum of Radiatively Cooling…

200 papers

Galactic outflows driven by supernovae (SNe) are thought to be a powerful regulator of a galaxy's star-forming efficiency. Mass, energy, and metal outflows ($\eta_M$, $\eta_E$, and $\eta_Z$, here normalized by the star formation rate, the…

Astrophysics of Galaxies · Physics 2023-05-31 Christopher Carr , Greg L. Bryan , Drummond B. Fielding , Viraj Pandya , Rachel S. Somerville

A number of X-ray binaries exhibit clear evidence for the presence of disk winds in the high/soft state. A promising driving mechanism for these outflows is mass loss driven by the thermal expansion of X-ray heated material in the outer…

High Energy Astrophysical Phenomena · Physics 2017-02-15 Nick Higginbottom , Daniel Proga , Christian Knigge , Knox S. Long

Whenever stars are rotating very fast (Omega/Omega_crit > 0.7, with Omega_crit the Keplerian angular velocity of the star accounting for its deformation) radiative stellar winds are enhanced in polar regions. This theoretical prediction is…

Solar and Stellar Astrophysics · Physics 2015-05-20 Cyril Georgy , Georges Meynet , André Maeder

We perform hydrodynamical simulations of a young galactic disc embedded in a hot gaseous halo using parameters typical for Lyman break galaxies (LBGs). We take into account the (static) gravitational potentials due to a dark matter halo, a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Wolfgang von Glasow , Martin Krause , Jesper Sommer-Larsen , Andreas Burkert

In this study we present three-dimensional radiative cooling hydrodynamical simulations of galactic winds generated particularly in M82-like starburst galaxies. We have considered intermittent winds induced by SNe explosions within super…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 C. Melioli , E. M. de Gouveia Dal Pino , F. Geraissate

In a companion paper, we develop a theory for the evolution of stellar wind driven bubbles in dense, turbulent clouds. This theory proposes that turbulent mixing at a fractal bubble-shell interface leads to highly efficient cooling, in…

Astrophysics of Galaxies · Physics 2021-06-30 Lachlan Lancaster , Eve C. Ostriker , Jeong-Gyu Kim , Chang-Goo Kim

We study, through 2D hydrodynamical simulations, the feedback of a starburst on the ISM of typical gas rich dwarf galaxies. The main goal is to address the circulation of the ISM and metals following the starburst. We assume a single-phase…

Astrophysics · Physics 2009-10-31 A. D'Ercole , F. Brighenti

The role of momentum transfer (``radiation pressure'') due to an internal source of ionizing radiation for the formation of baryonic structures is investigated. Fully-ionized self-gravitating gaseous objects can be radiation-pressure…

Astrophysics · Physics 2015-06-24 Martin G. Haehnelt

We discuss recent progress in understanding the launching of outflows/jets from the disc-magnetosphere boundary of slowly and rapidly rotating magnetized stars. In most of the discussed models the interior of the disc is assumed to have a…

Solar and Stellar Astrophysics · Physics 2013-06-06 R. V. E. Lovelace , M. M. Romanova , P. Lii

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

We present results from models of galactic winds driven by energy injected by nuclear starbursts. The total energy of the starburst is provided by young central stellar clusters and parts of the galactic interstellar medium are pushed out…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-18 A. Rodriguez-Gonzalez , A. Esquivel , A. C. Raga , P. Colin

Feedback from supernovae is an essential aspect of galaxy formation. In order to improve subgrid models of feedback we perform a series of numerical experiments to investigate how supernova explosions power galactic winds. We use the Flash…

Astrophysics of Galaxies · Physics 2015-06-12 Peter Creasey , Tom Theuns , Richard G. Bower

We present 2-D hydrodynamic simulation of rotating galactic winds driven by radiation. We study the structure and dynamics of the cool and/or warm component($T \simeq 10^4$ K) which is mixed with dust. We have taken into account the total…

Astrophysics of Galaxies · Physics 2015-06-04 Indranil Chattopadhyay , Mahavir Sharma , Biman B. Nath , Dongsu Ryu

We investigate the launching of outflows from the disk-magnetosphere boundary of slowly and rapidly rotating magnetized stars using axisymmetric and exploratory 3D magnetohydrodynamic (MHD) simulations. We find long-lasting outflows in both…

Solar and Stellar Astrophysics · Physics 2015-05-13 M. M. Romanova , G. V. Ustyugova , A. V. Koldoba , R. V. E. Lovelace

We present 2D MHD simulations of the radiatively driven outflow from a rotating hot star with a dipole magnetic field aligned with the star's rotation axis. We focus primarily on a model with moderately rapid rotation (half the critical…

Astrophysics · Physics 2011-05-12 A. ud-Doula , R. H. D. Townsend , S. P. Owocki

We performed a suit of three-dimensional hydrodynamical simulations with a resolution of $\sim10$ parsecs to investigate the development of multiphase galactic wind in M82. The star formation and related feedback processes are solved…

Astrophysics of Galaxies · Physics 2025-03-17 Xue-Fu Li , Weishan Zhu , Tian-Rui Wang , Long-Long Feng

We study the spatially resolved outflow properties of CSWA13, an intermediate mass ($M_*=10^{9}~\mathrm{M}_{\odot}$), gravitationally lensed star-forming galaxy at $z=1.87$. We use Keck/KCWI to map outflows in multiple rest-frame…

We present Keck/LRIS-B spectra for a sample of ten AEGIS X-ray AGN host galaxies and thirteen post-starburst galaxies from SDSS and DEEP2 at 0.2<z<0.8 in order to investigate the presence, properties, and influence of outflowing galactic…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-23 Alison L. Coil , Benjamin J. Weiner , Daniel E. Holz , Michael C. Cooper , Renbin Yan , James Aird

The theory of Galactic Winds, driven by the cosmic-ray pressure gradient, is reviewed both on the magnetohydrodynamic and on the kinetic level. In this picture the magnetic field of the Galaxy above the dense gas disk is assumed to have a…

High Energy Astrophysical Phenomena · Physics 2014-11-06 Heinrich J. Völk

Galactic winds play essential roles in the evolution of galaxies through the feedback they provide. Despite intensive studies of winds, the radial distributions of their properties and feedback are rarely observable. Here we present such…

Astrophysics of Galaxies · Physics 2023-10-03 Xinfeng Xu , Timothy Heckman , Michitoshi Yoshida , Alaina Henry , Youichi Ohyama