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Fig. 2
νesini derived by means of Fourier transform or line-profile fitting methods (vertical axis; see Ramírez-Agudelo et al.2013) vs. FWHM for He iλ4387, 4713, 4922, and He iiλ4541 (horizontal axis). The lines show the fitted FWHM −νesini calibration relations described by Eq. (1) and Table 1.
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