The origin of magnetic fields in protoplanetary nebulae

Details The origin of magnetic fields in protoplanetary nebulae The origin of magnetic fields in protoplanetary nebulae

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989crasm.308.1229p&link_type=abstract

Academie des Sciences (Paris), Comptes Rendus, Serie II - Mecanique, Physique, Chimie, Sciences de l'Univers, Sciences de la Ter

Physics

3

Magnetohydrodynamics, Planetary Nebulae, Stellar Cores, Stellar Magnetic Fields, Stellar Physics, Convection Currents, Lines Of Force, Red Giant Stars, Stellar Envelopes

Scientific paper

The hypothesis that the magnetic fields of protoplanetary nebulae are generated deep in the core of the progenitor, an evolved M-type red giant, is explored. An examination of the transport of magnetic field lines through the convective envelope and of diffusion in the stellar wind/photosphere transition zone reveals values of about 10 G for the subphotospheric magnetic field and of about 2-3 G at the base of the stellar wind. The results are in agreement with the findings of Pascoli (1987) and Pascoli and Macron (1987).

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