
doi: 10.1038/178533a0
SOME of the recent theoretical discussions of the magnetic field of the Sun have tended to throw the subject into a state of confusion1–3. In particular, H. Alfven3 asserts that “… it is at present impossible to derive a value of the sun's general magnetic field from spectroscopic measurements”, and that “quite without justification it is assumed that Zeeman-effect measurements give an accurate value of the solar magnetic field”.
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