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Fig. 1


Portion of the spectrum of HD 18078 observed with AURELIE in January 1992 (top; close to the field modulus maximum; B ⟩ = 4.4 kG) and in February 1994 (bottom; when the Fe iiλ 6149.2 line was not resolved; B ⟩ ≃ 2.6 kG). The lines shown are Cr iiλ 6147.1, Fe iiλ 6147.7, and Fe iiλ 6149.2.

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