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Cosmic Rays and Galactic Winds
Astrophysics and Space Science, 2004Repeated SN-explosion provide large amounts of thermal energy as well as energetic particles through a 1. order Fermi-process. Both effects together with the generation of AlfveŽn-waves are considered to drive a large scale outflow from a galaxy. These so-called galactic winds transport stellar material enriched by heavy elements into the intergalactic
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Nature Astronomy, 2020
A Galactic wind blowing from the Milky Way nucleus has swept up a few hundred clouds of atomic gas. New observations reveal dense molecular cores in two of these clouds, indicating a high loss rate of interstellar gas from the Galactic centre.
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A Galactic wind blowing from the Milky Way nucleus has swept up a few hundred clouds of atomic gas. New observations reveal dense molecular cores in two of these clouds, indicating a high loss rate of interstellar gas from the Galactic centre.
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Galactic winds: a short review
Astrophysics and Space Science, 2007Galactic winds are important in recycling energy and metals in galaxies. They are also suspected to be the primary mechanism in the enrichment of the intergalactic medium. New observations are revealing the ubiquity of galactic winds, particularly at high redshift. We review the observational evidence for them in nearby star-forming and active galaxies
Joss Bland-Hawthorn +2 more
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Physica Scripta, 1984
The mass loss phenomenon in hot luminous stars is discussed and models for the structure of the wind, two component models and shock models are described. The constraints on models by X-ray observations are analysed. Hot stars return considerable amounts of matter and energy to the interstellar medium; the importance of this flow of energy and matter ...
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The mass loss phenomenon in hot luminous stars is discussed and models for the structure of the wind, two component models and shock models are described. The constraints on models by X-ray observations are analysed. Hot stars return considerable amounts of matter and energy to the interstellar medium; the importance of this flow of energy and matter ...
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Accretion of Stellar Winds in the Galactic Centre
2007We report a 3-dimensional numerical study of the accretion of stellar winds onto Sgr A*, the super-massive black hole at the centre of our Galaxy. Compared with previous investigations, we allow the stars to be on realistic orbits, include the recently discovered slow wind sources, and allow for optically thin radiative cooling.
Cuadra, J +3 more
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Galactic Winds in Ellipticals: Consequences for Galactic and Intergalactic Enrichment
1988Models of chemical evolution of elliptical galaxies, where galactic winds powered by SN explosions (of type I and II), as well as detailed nucleosynthesis prescriptions for single elements, are taken into account, predict the following results: i) There are different mass-metallicity relations for different heavy elements (O, Mg, Si and Fe), the
F. Matteucci, A. Tornambè, P. Vettolani
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Galactic winds in dwarf galaxies
New Astronomy Reviews, 2007Abstract Galactic winds are mayor ingredients of our current paradigms of galaxy formation and evolution. They are needed to explain the chemical evolution of galaxies and the intergalactic medium, the luminosity function of galaxies, the formation of galaxies, and the reionization of the universe, just to name a few topics.
Dominik J. Bomans +4 more
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Star formation in a galactic wind
Nature, 1980Malin and Carter1 have discovered giant shells of faint optical emission around several normal elliptical galaxies. We suggest here that these shells are composed of stars formed in shocked galactic wind material. Shocks might arise from relatively gradual increases in wind velocity, or from the collision of the wind with a tenuous intergalactic medium,
A. C. Fabian +2 more
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