1. Fountain-driven gas accretion by the Milky Way
- Author
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Ciotti L., Nipoti C., Binney J., Fraternali F., Marinacci F., and Londrillo P.
- Subjects
Physics ,QC1-999 - Abstract
Accretion of fresh gas at a rate of ∼ 1M☉yr−1 is necessary in star-forming disc galaxies, such as the Milky Way, in order to sustain their star-formation rates. In this work we present the results of a new hydrodynamic simulation supporting the scenario in which the gas required for star formation is drawn from the hot corona that surrounds the star-forming disc. In particular, the cooling of this hot gas and its accretion on to the disc are caused by the passage of cold galactic fountain clouds through the corona.
- Published
- 2012
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