Astrophysics (Index)About

Zeeman effect

(magnetic field influence on spectral lines)

The Zeeman effect is an effect of a magnetic field on spectral lines: states of excitation that would be degenerate (identical) are adjusted so they are not in the presence of a magnetic field. The energy associated with each electron orbital is influenced by magnetism: it could be looked at as the influence of magnetic force on the orbiting electrons, but that seems a classical view which may not be the real picture. The Zeeman effect also affects the polarization of the photons. The effect is observable with a spectropolarimeter, a useful instrument for clues to astronomical magnetic fields. Zeeman-Doppler imaging (ZDI) is a technique for using the effect.


(physics,magnetism,EMR)
Further reading:
http://en.wikipedia.org/wiki/Zeeman_effect
http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/zeeman.html
http://www.pas.rochester.edu/~blackman/ast104/zeeman-split.html

Referenced by pages:
molecular cloud
Zeeman-Doppler imaging (ZDI)

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