Abstract
In this work, a multi-line spectropolarimetric detection using an Echelle spectrograph is described. The polarization of Zeeman effect is detected by the use of more than 200 lines observed in the solar type star, HR1099. Using the statistics analysis in a sample of 200 lines, we found on the average a polarization signal of about 3 × 10−4.
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Semel, M., Li, J. Zeeman-Doppler imaging of solar-type stars: Multi line technique. Sol Phys 164, 417–428 (1996). https://doi.org/10.1007/BF00146653
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DOI: https://doi.org/10.1007/BF00146653