= Zeeman–Doppler imaging
{wiki=Zeeman–Doppler_imaging}
Zeeman-Doppler imaging is a technique used in astrophysics and stellar spectroscopy to study the magnetic fields and surface features of stars. This method combines two key effects: the Zeeman effect and the Doppler effect. 1. **Zeeman Effect**: This phenomenon occurs when the presence of a magnetic field splits the spectral lines of elements in a star's atmosphere into multiple components. The degree of splitting provides information about the strength and orientation of the magnetic field.
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