Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..54..425e&link_type=abstract
Astrophysics and Space Science, vol. 54, no. 2, Apr. 1978, p. 425-443. Research supported by the Science Research Council.
Astronomy and Astrophysics
Astrophysics
29
Interstellar Magnetic Fields, Magnetic Field Configurations, Polarized Electromagnetic Radiation, Stellar Radiation, Optical Polarization, Periodic Variations, Star Distribution
Scientific paper
Over 5000 stellar polarization measurements on stars for which reliable distances can be determined were analyzed in order to obtain information on the large-scale features and irregularities in the interstellar magnetic field. Polarization is related to physical conditions at a given location in the Galaxy by a Davis-Greenstein magnetic alignment mechanism. The data apparently cannot be explained well in terms of a simple longitudinal model. The evidence points to a local field running to l = 45 deg. Beyond 500 pc, one direction is insufficient. Loop structures detected are described as local supernova remnants around which the longitudinal component of the field has been perturbed. A lack of structure on various distance scales was found.
Axon David J.
Ellis Richard S.
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