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In this contribution I summarize our current knowledge of the nature and significance of starburst-driven galactic superwinds. These flows are driven primarily by the kinetic energy supplied by supernovae. Superwinds are complex, multiphase…

Astrophysics · Physics 2007-05-23 Timothy M. Heckman

In this contribution I summarize our current knowledge of the nature and significance of starburst-driven galactic winds (``superwinds''). Superwinds are complex multiphase outflows of cool, warm, and hot gas, dust, and magnetized…

Astrophysics · Physics 2007-05-23 Timothy M. Heckman

We propose a model of starburst--driven galactic outflows whose dynamics depends on both radiation and thermal pressure. Standard models of thermal pressure--driven winds fail to explain some key observations of outflows at low and high…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Biman B. Nath , Joseph Silk

We study galaxy super-winds driven in major mergers, using pc-resolution simulations with detailed models for stellar feedback that can self-consistently follow the formation/destruction of GMCs and generation of winds. The models include…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-13 Philip F. Hopkins , Dusan Keres , Norman Murray , Lars Hernquist , Desika Narayanan , Christopher C. Hayward

Galaxy-scale outflows of gas, or galactic winds (GWs), driven by energy from star formation are a pivotal mechanism for regulation of star formation in the current model of galaxy evolution. Observations of this phenomenon have proliferated…

Astrophysics of Galaxies · Physics 2018-12-14 David S. N. Rupke

We develop a new method to infer the temporal, geometric, and energetic properties of galaxy outflows, by combining stellar spectral modeling to infer starburst ages, and absorption lines to measure velocities. If winds are accelerated with…

Astrophysics of Galaxies · Physics 2022-12-14 Matthew J. Hayes

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

Winds are predicted to be ubiquitous in low-mass, actively star-forming galaxies. Observationally, winds have been detected in relatively few local dwarf galaxies, with even fewer constraints placed on their timescales. Here, we compare…

Astrophysics of Galaxies · Physics 2018-04-11 Kristen B. W. McQuinn , Evan D. Skillman , Taryn N. Heliman , Noah P. Mitchell , Tyler Kelley

Galactic winds are a crucial player in galaxy formation and evolution, but observations of them have proven extraordinarily difficult to interpret, leaving large uncertainties even in basic quantities such as mass outflow rates. Part of…

Astrophysics of Galaxies · Physics 2022-11-30 Yuxuan Yuan , Mark R. Krumholz , Crystal L. Martin

Observational implications are derived for two standard models of supernovae-driven galactic winds: a freely expanding steady-state wind and a wind sourced by a self-similarly expanding superbubble including thermal heat conduction. It is…

Astrophysics of Galaxies · Physics 2016-07-27 Avery Meiksin

Winds arising from galaxies, star clusters, and active galactic nuclei are crucial players in star and galaxy formation, but it has proven remarkably difficult to use observations of them to determine physical properties of interest,…

Astrophysics of Galaxies · Physics 2017-08-30 Mark R. Krumholz , Todd A. Thompson , Eve C. Ostriker , Crystal L. Martin

We present a model to self-consistently describe the joint evolution of starburst galaxies and the galactic wind resulting from this evolution. We combine the population synthesis code Starburst99 with a semi-analytical model of galactic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Benoit Côté , Hugo Martel , Laurent Drissen , Carmelle Robert

We have performed an absorption-line survey of outflowing gas in 78 starburst-dominated, infrared-luminous galaxies. This is the largest study of superwinds at z < 3. Superwinds are found in almost all infrared-luminous galaxies, and…

Astrophysics · Physics 2009-11-11 David S. Rupke , Sylvain Veilleux , D. B. Sanders

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

Stellar-feedback driven outflows are predicted to play a fundamental role in the baryon cycle of low-mass galaxies. However, observational constraints of winds in nearby dwarf galaxies are limited as outflows are transient, intrinsically…

Astrophysics of Galaxies · Physics 2020-06-24 Kristen B. W. McQuinn , Liese van Zee , Evan D. Skillman

I discuss the observational evidence that starburst galaxies are able to drive galactic-scale outflows ("superwinds") and then argue generally that superwinds must have had an important role in galaxy evolution. To explore the role of…

Astrophysics · Physics 2007-05-23 M. D. Lehnert

Galactic winds shape the stellar, gas, and metal content of galaxies. To quantify their impact, we must understand their physics. We review potential wind-driving mechanisms and observed wind properties, with a focus on the warm ionized and…

Astrophysics of Galaxies · Physics 2024-06-21 Todd A. Thompson , Timothy M. Heckman

Magnetic stresses collimate protostellar winds into a common distribution of force with angle. Sweeping into the ambient medium, such winds drive bipolar molecular outflows whose properties are insensitive to the distribution of ambient gas…

Astrophysics · Physics 2007-05-23 Christopher D. Matzner

Feedback from massive stars is believed to play a critical role in driving galactic super-winds that enrich the IGM and shape the galaxy mass function and mass-metallicity relation. In previous papers, we introduced new numerical methods…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-22 Philip F. Hopkins , Eliot Quataert , Norman Murray

We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey to understand the link between properties of the…

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