Stellar Magnetic Fields

Magnetic fields play critical roles in the heating of stellar chromospheres and coronae and the acceleration of stellar winds. The stuctures seen in the solar chromosphere likely have analogs in cool stars with convective zones and magnetic fields. Stellar magnetic fields can be measured by the Zeeman spliting and broadening of spectral lines and large-scale magnetic structures on stars can be images using Zeeman Doppler imaging texhniques.

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