Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...261l..55v&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 261, Oct. 1, 1982, p. L55-L58.
Astronomy and Astrophysics
Astrophysics
16
Astronomical Models, Galactic Structure, Heliosphere, Interstellar Magnetic Fields, Milky Way Galaxy, Solar Magnetic Field, Density Wave Model, Gum Nebula, Magnetic Field Configurations, Solar System, Stellar Envelopes, Stellar Magnetic Fields, Stellar Mass Ejection
Scientific paper
Akasofu and Hakamada's (1982) predictions regarding the direction of the magnetic field lines above and below the galactic plane as well as along the plane from one arm to the next, and the configuration of the field, are compared with recent observational data. Doubts are cast on the ability of this heliospheric model to explain the galactic magnetic field lines for magnitudes in the 1-30 kpc range. This heliospheric magnetic field model may be of use, however, in the case of the recently discovered 0.1-1.0 kpc magnetic bubbles in which stars, in an association, build a common shell of matter and magnetic fields by means of stellar ejecta. It is suggested that the area of the Gum Nebula may also be a new magnetic bubble, with rotation magnitudes of the order of 100 rad/sq m.
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