Reprinted with kind permission from , 4139 El
Camino Way, Palo Alto, California, USA
For a PDF version of the article, click here.
GALACTIC WINDS
Sylvain Veilleux 1, Gerald Cecil
2, and Joss Bland-Hawthorn 3
1 Department
of Astronomy,
University of Maryland,
College Park, Maryland 20742
2 Department of Physics and Astronomy,
University of
North Carolina, Chapel Hill, North Carolina 27599-3255
3 Anglo-Australian Observatory, Epping, New South Wales,
Australia
Abstract. Galactic winds are the primary mechanism by which
energy and metals
are recycled in galaxies and are deposited into the intergalactic
medium. New observations are revealing the ubiquity of this process,
particularly at high redshift. We describe the physics behind these
winds, discuss the observational evidence for them in nearby
star-forming and active galaxies and in the high-redshift universe,
and consider the implications of energetic winds for the formation and
evolution of galaxies and the intergalactic medium. To inspire future
research, we conclude with a set of observational and theoretical
challenges.
Key words : galaxies: evolution - galaxies: halos -
galaxies: intergalactic medium - galaxies: kinematics and dynamics
- galaxies: nuclei
Table of Contents
INTRODUCTION
- Fundamental role
- Early History
- Review structure
- BASIC PHYSICS
- Sources of Energy
- STELLAR WINDS & SUPERNOVAE
- AGN
- Wind-blown bubbles
- Galactic winds
- Hydrodynamical Simulations
- MAJOR WINDBLOWN EVENTS IN THE LMC & GALAXY
- Large Magellanic Cloud
- Nuclear Wind in the Galaxy
- LOCAL CENSUS OF GALACTIC WINDS IN STAR-FORMING
GALAXIES
- Search Techniques & Observational
Limitations
- Detection Rate
- Morphology
- Kinematics
- Mass Outflow Rates & Energetics
- Escape Fraction
- Energy Injection Zone
- Excitation Properties & Evolution
- Wind Fluid
- Dust
- LOCAL CENSUS OF LARGE-SCALE OUTFLOWS IN ACTIVE
GALAXIES
- Detection Rate
- Morphology
- Kinematics
- Mass Outflow Rates & Energetics
- Energy Injection Zone
- Source of Ionization
- Dust
- WINDS IN THE DISTANT UNIVERSE
- High-Redshift Galaxies
- QSO Absorption-Line Systems
- THE SIGNIFICANCE OF GALACTIC WINDS
- Influence of Winds on Galactic Scales
- GALAXY LUMINOSITY FUNCTION
- CHEMICAL EVOLUTION
- DISK SIZE AND DARK MATTER CONCENTRATION
- POROSITY OF HOST ISM
- SPHEROID - BLACK HOLE CONNECTION
- Influence of Winds on Intergalactic Scales
- INTRACLUSTER MEDIUM
- INTERGALACTIC MEDIUM
- FUTURE DIRECTIONS
- Observational Challenges
- UNBIASED CENSUS OF LOCAL WINDS
- WIND FLUID
- ENTRAINED MOLECULAR GAS & DUST
- ZONE OF INFLUENCE & ESCAPE EFFICIENCY
- THERMALIZATION EFFICIENCY
- WIND/ISM INTERFACE & MAGNETIC FIELDS
- GALACTIC WINDS IN THE DISTANT UNIVERSE
- POSITIVE FEEDBACK BY WINDS
- Theoretical Challenges
- MODELING THE ENERGY SOURCE
- MODELING THE HOST ISM
- COUPLING THE RADIATION FIELD TO GAS
- REFERENCES
