Astronomy and Astrophysics – Astronomy
Scientific paper
May 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85..611l&link_type=abstract
Astronomical Journal, vol. 85, May 1980, p. 611-620. Research supported by the Natural Sciences and Engineering Research Council
Astronomy and Astrophysics
Astronomy
74
Magnetic Measurement, Stellar Magnetic Fields, Astronomical Spectroscopy, Balmer Series, Magnetic Field Configurations, Polarimetry, Random Errors, Zeeman Effect
Scientific paper
A review is presented of techniques of measuring magnetic fields in nondegenerate stars. The strengths and limitations of the classical photographic field measurement technique are compared to those of various photoelectric methods developed during the past decade, particularly the Balmer-line Zeeman analyzer technique. The problem of modeling magnetic data to infer the magnetic field geometry of an observed star is discussed. In the few cases where sufficient data are available to test the centered dipole geometry, it is found to be inadequate. It appears that most magnetic stars have field geometries at least as complex as the oblique decentered dipole (or dipole plus parallel linear quadrupole) model.
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