Simulations of magnetized multiphase galactic disc regulated by supernovae explosions

What exactly controls star formation in the Galaxy remains controversial. In particular, the role of feedback and magnetic field are still partially understood. We investigate the role played by supernovae feedback and magnetic field on the star formation and the structure of the Galactic disc. The...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2014-10, Vol.570
Main Authors: Hennebelle, Patrick, Iffrig, Olivier
Format: Article
Language:English
Subjects:
Control systems
Control theory
Correlation
Discs
Disks
Feedback
Magnetic fields
Star formation
Supernovae
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Summary:What exactly controls star formation in the Galaxy remains controversial. In particular, the role of feedback and magnetic field are still partially understood. We investigate the role played by supernovae feedback and magnetic field on the star formation and the structure of the Galactic disc. The exact correlation between the supernovae and the dense gas appears to have significant consequences on the galactic disc evolution and the star formation. This implies that small scale studies are necessary to understand and quantify the feedback efficiency. The magnetic field does influence the star formation at galactic scales by reducing the star formation rate and the number of star formation sites.
ISSN:0004-6361
1432-0746
DOI:10.1051/00046361/201423392