Magnetic field observations of low-mass stars

Ansgar Reiners
2008 Proceedings of the International Astronomical Union  
AbstractDirect measurements of magnetic fields in low-mass stars of spectral class M have become available during the last years. This contribution summarizes the data available on direct magnetic measurements in M dwarfs from Zeeman analysis in integrated and polarized light. Strong magnetic fields at kilo-Gauss strength are found throughout the whole M spectral range, and so far all field M dwarfs of spectral type M6 and later show strong magnetic fields. Zeeman Doppler images from polarized
more » ... ges from polarized light find weaker fields, which may carry important information on magnetic field generation in partially and fully convective stars.
doi:10.1017/s1743921309030701 fatcat:rzojejmfsjgldk7wzk4ogrfqzq