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Related papers: Modeling Multiphase Galactic Outflows: A Multiflui…

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Using a set of high resolution hydrodynamical simulations run with the Cholla code, we investigate how mass and momentum couple to the multiphase components of galactic winds. The simulations model the interaction between a hot wind driven…

Astrophysics of Galaxies · Physics 2017-01-18 Evan E. Schneider , Brant E. Robertson

(abridged) Accretion onto supermassive black holes (SMBHs) at close to the Eddington rate can influence the host galaxy via powerful winds. Theoretical models of such winds can explain observational correlations between SMBHs and their host…

Astrophysics of Galaxies · Physics 2024-09-30 K. Zubovas , M. Tartėnas , M. A. Bourne

We present an investigation of clustered stellar feedback in the form of superbubbles identified within eleven galaxies from the FIRE-2 (Feedback in Realistic Environments) cosmological zoom-in simulation suite, at both cosmic noon (1 < z <…

Supernovae (SNe) drive multiphase galactic outflows, impacting galaxy formation; however, cosmological simulations mostly use \textit{ad hoc} feedback models for outflows, making outflow-related predictions from first principles…

Astrophysics of Galaxies · Physics 2020-03-04 Miao Li , Greg L. Bryan

Mass outflow rates and loading factors are typically used to infer the quenching potential of galactic-scale outflows. However, these generally rely on observations of a single gas phase which can severely underestimate the total ejected…

Astrophysics of Galaxies · Physics 2020-04-22 Guido Roberts-Borsani

In this work, the gas infall and the formation of outflows around low and high mass protostars are investigated. A radial self-similar approach to model the transit of the molecular gas around the central object is employed. We include…

Astrophysics · Physics 2009-11-13 C. Combet , T. Lery , G. C. Murphy

Central molecular outflows in spiral galaxies are assumed to modulate their host galaxy's star formation rate by removing gas from the inner region of the galaxy. Outflows consisting of different gas phases appear to be a common feature in…

Two of the dominant channels for galaxy mass assembly are cold flows (cold gas supplied via the filaments of the cosmic web) and mergers. How these processes combine in a cosmological setting, at both low and high redshift, to produce the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Leila C. Powell , Frederic Bournaud , Damien Chapon , Julien Devriendt , Adrianne Slyz , Romain Teyssier

Galactic outflows are believed to play an important role in regulating star formation in galaxies, but estimates of the outflowing mass and momentum have historically been based on uncertain assumptions. Here, we measure the mass, momentum,…

Astrophysics of Galaxies · Physics 2017-06-28 John Chisholm , Christy A. Tremonti , Claus Leitherer , Yanmei Chen

Observations and simulations show that outflows in active galactic nuclei (AGN) contain gas in different phases. To understand their true impact on galaxy evolution, we advocate consistent and unbiased investigation of these multiphase…

Astrophysics of Galaxies · Physics 2018-03-01 Claudia Cicone , Marcella Brusa , Cristina Ramos Almeida , Giovanni Cresci , Bernd Husemann , Vincenzo Mainieri

Most massive galaxies host a supermassive black hole at their centre. Matter accretion creates an active galactic nucleus (AGN), forming a relativistic particle wind. The wind heats and pushes the interstellar medium, producing…

Astrophysics of Galaxies · Physics 2024-09-23 Martynas Laužikas , Kastytis Zubovas

Large-scale outflows from starburst galaxies are multi-phase, multi-component fluids. Charge-exchange lines which originate from the interfacing surface between the neutral and ionised components are a useful diagnostic of the cold dense…

Astrophysics of Galaxies · Physics 2019-11-28 Kinwah Wu , Kaye Jiale Li , Ellis R. Owen , Li Ji , Shuinai Zhang , Graziella Branduardi-Raymont

Galactic outflows are known to consist of several gas phases, however, so far the connection between these multiple phases has been investigated little and only in a few objects. In this paper, we analyse MUSE/VLT data of 26 local (U)LIRGs…

The characterization of the large amount of gas residing in the galaxy halos, the so called circumgalactic medium (CGM), is crucial to understand galaxy evolution across cosmic time. We focus here on the the cool ($T\sim10^4$ K) phase of…

Astrophysics of Galaxies · Physics 2020-12-16 Andrea Afruni , Filippo Fraternali , Gabriele Pezzulli

Outflows from starburst galaxies can be driven by thermal pressure, radiation and cosmic rays. We present an analytic phenomenological model that accounts for these contributions simultaneously to investigate their effects on the…

Astrophysics of Galaxies · Physics 2020-01-29 B. P. Brian Yu , Ellis R. Owen , Kinwah Wu , Ignacio Ferreras

We investigate the multi-phase structure of gas flows in galaxies. We study 80 galaxies during the epoch of peak star formation ($1.4\leq z\leq2.7$) using data from Keck/LRIS and VLT/KMOS. Our analysis provides a simultaneous probe of…

We present the first large-scale, high-resolution simulations of dusty, star formation feedback-driven galactic outflows. Using the Cholla hydrodynamics code, we investigate dust sputtering in these environments for grains ranging in size…

Astrophysics of Galaxies · Physics 2026-03-09 Helena M. Richie , Evan E. Schneider

High surface density, rapidly star-forming galaxies are observed to have $\approx 50-100\,{\rm km\,s^{-1}}$ line-of-sight velocity dispersions, which are much higher than expected from supernova driving alone, but may arise from large-scale…

Astrophysics of Galaxies · Physics 2016-02-17 Sharanya Sur , Evan Scannapieco , Eve C. Ostriker

We report on a sample of 51 nearby, star-forming galaxies observed with the Cosmic Origin Spectrograph on the Hubble Space Telescope. We calculate Si II kinematics and densities arising from warm gas entrained in galactic outflows. We use…

Astrophysics of Galaxies · Physics 2015-10-07 John Chisholm , Christina A. Tremonti , Claus Leitherer , Yanmei Chen , Aida Wofford , Britt Lundgren

We use cosmological hydrodynamic simulations to investigate how inflows, star formation, and outflows govern the the gaseous and metal content of galaxies. In our simulations, galaxy metallicities are established by a balance between…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Romeel Davé , Kristian Finlator , Benjamin D. Oppenheimer