Based on observations obtained with the MuSiCoS spectropolarimeter at the Observatoire du Pic du Midi, France, and by the International Ultraviolet Explorer, collected at NASA Goddard Space Flight Center and Villafranca Satellite Tracking Station of the European Space Agency, retrieved from the INES database.

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Table 7 is only available in electronic form at http://www.edpsciences.org

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... MIDAS

MIDAS is distributed by the European Southern Observatory.

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... IRAF

IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under cooperative agreement with the National Science Foundation.

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... site

http://tlusty.gsfc.nasa.gov

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