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- W2033523346 abstract "view Abstract Citations (25) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Magnetic Diffusion Due to Supernova Explosions and Superbubbles in the Galactic Disk Ferriere, Katia Abstract We derive a general analytical expression for the turbulent magnetic diffusivity tensor due to an ensemble of explosions. We then particularize to the case when explosions arise from supernovae and superbubbles in the Galactic disk. We find that superbubbles dominate the production of magnetic diffusion, especially high above the midplane. This happens both because interactions with superbubbles are more frequent and because superbubbles are able to carry field lines farther than isolated supernovae. Since most explosions take place at low altitude, the total vertical diffusivity is small at the midplane; it increases rapidly with height up to about 300 pc and remains roughly uniform between 300 and 800 pc. The total horizontal diffusivity is maximum at the midplane and falls off slowly with height. Publication: The Astrophysical Journal Pub Date: May 1993 DOI: 10.1086/172659 Bibcode: 1993ApJ...409..248F Keywords: Galactic Structure; Interstellar Magnetic Fields; Magnetic Diffusion; Supernovae; Dynamo Theory; Turbulent Diffusion; Astrophysics; DIFFUSION; ISM: BUBBLES; MAGNETOHYDRODYNAMICS: MHD; STARS: SUPERNOVAE: GENERAL full text sources ADS |" @default.
- W2033523346 created "2016-06-24" @default.
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- W2033523346 date "1993-05-01" @default.
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- W2033523346 title "Magnetic diffusion due to supernova explosions and superbubbles in the Galactic disk" @default.
- W2033523346 doi "https://doi.org/10.1086/172659" @default.
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