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9.18. Galactic winds in active galaxies

Published online by Cambridge University Press:  25 May 2016

S. Veilleux ,
J. Bland-Hawthorn ,
G. Cecil  and
P. Shopbell
S. Veilleux
Affiliation:
University of Maryland College Park, MD 20742 USA
J. Bland-Hawthorn
Affiliation:
Anglo-Australian Observatory P.O. Box 296, Epping, NSW 2121 Australia
G. Cecil
Affiliation:
University of North Carolina Chapel Hill, NC 27599 USA
P. Shopbell
Affiliation:
California Institute of Technology Pasadena, CA 91125 USA

Extract

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The effects of large-scale galactic winds in active galaxies may be far-reaching. It has been suggested that the Hubble sequence can be understood in terms of a galaxy's greater ability to sustain winds with increasing bulge-to-disk ratio. The large-scale circulation of gas associated with these galactic winds might help explain the mass-metallicity relation between galaxies and the metallicity-radius relation within galaxies. Galactic winds probably contribute non-negligibly to the cosmic X-ray background and may be involved in the quasar absorption-line phenomenon. The cosmological implications of the wind phenomenon have been widely explored in the context of proto-galaxies and quasars. The extremely energetic galactic winds that were likely associated with galaxy formation almost certainly played a key role in heating and ionizing the intergalactic medium at high redshifts and may have created the seeds for the large-scale structure we see today.

Type
Part III. Black Holes and Central Activity
Information
Symposium - International Astronomical Union , Volume 184: The Central Regions of the Galaxy and Galaxies , 1998 , pp. 417 - 418
Copyright
Copyright © Kluwer 1998 

References

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