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        Comparisons of images derived from independent Zeeman Doppler imaging codes

        Author
        Hussain, G A J
        Donati, J F
        Collier Cameron, A
        Barnes, J R
        Attention
        2299/7428
        Abstract
        We compare surface brightness and magnetic field surface maps for the K0 dwarf AB Doradus, obtained using two independently developed Zeeman Doppler imaging codes. We find that even the fine structure in the two sets of images shows excellent agreement. Magnetic field maps appear to be less sensitive to line-modelling effects than brightness maps. We argue that these results point to the consistency and reliability of Doppler imaging techniques even when using poorly sampled data sets, provided that the spectra used are of sufficiently high signal-to-noise ratio.
        Publication date
        2000-11-11
        Published in
        Monthly Notices of the Royal Astronomical Society
        Published version
        https://doi.org/10.1046/j.1365-8711.2000.03573.x
        Other links
        http://hdl.handle.net/2299/7428
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