Computer Science – Performance
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...8e...7k&link_type=abstract
Solar and Stellar Activity Cycles, 26th meeting of the IAU, Joint Discussion 8, 17-18 August 2006, Prague, Czech Republic, JD08,
Computer Science
Performance
Scientific paper
Rotational modulation of the intensity and polarization spectra of magnetic stars offers a unique possibility to reconstruct the structure of surface magnetic fields and investigate their relation to the temperature and chemical spots in stellar atmospheres. The complex task of obtaining self-consistent and accurate maps of photospheric magnetic fields can finally be addressed with the Magnetic Doppler imaging technique. We present the new version of our magnetic Doppler imaging code which aims at temperature and magnetic mapping of cool active stars. Our magnetic imaging procedure is unique in its capability to model individual spectral features in several Stokes parameters simultaneously. We discuss performance and intrinsic limitations of our magnetic Doppler imaging method. A special emphasis is given to the mapping using both atomic and molecular spectral lines. The latter may, for the first time, give us a tool to learn about magnetic fields in the interior of starspots.
Kochukhov Oleg
Piskunov Nicolai
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