Stellar magnetic imaging from spectropolarimetric data
- 1 January 1996
- journal article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 176, 53-60
- https://doi.org/10.1017/s0074180900083091
Abstract
In this paper, I will review the capabilities of magnetic imaging (also called Zeeman-Doppler imaging) to reconstruct spot distributions of surface fields from sets of rotationnally modulated Zeeman signatures in circularly polarised spectral lines. I will then outline a new method to measure small amplitude magnetic signals (typically 0.1% for cool active stars) with very high accuracy. Finally, I will present and comment new magnetic images reconstructed from data collected in 1993 December at the Anglo-Australian Telescope (AAT).Keywords
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