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Fig. 3

image

Left panel: best fit to the observed spectrum with b = 1 in the region of the Ca II triplet and He I; the case of b = 0 is also shown, as is the hydrogen line spectrum computed for a model atmosphere with log g = 2.0. Right panel:fit to the spectrum containing Si I lines, marked by vertical arrows; the He I line is also shown. We note the broad feature at 10 700 Å, marked by “??”; see text.

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