Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231l..83r&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 231, July 15, 1979, p. L83-L86. Research supported by the Smithsonia
Astronomy and Astrophysics
Astrophysics
4
Coronas, Interstellar Gas, Interstellar Magnetic Fields, Rotating Matter, Angular Momentum, Gas Heating, Momentum Transfer
Scientific paper
This letter considers differential rotation of cool interstellar clouds in the presence of internal magnetic fields, and shows that because of the relative ineffectiveness of field dissipation within the clouds, magnetized gas experiences buoyant forces. The resulting field loops emerge from the cloud and dissipate their energy by field reconnection. The consequent heating is sufficient to produce relatively hot (T approximately 10,000 K) 'coronae' about the clouds.
Hartquist Thomas W.
Rosner Robert
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