Fig. 3
Intensity-wavenumber profiles for the 5800 (black), 5850 (purple), and 6615 Å (red) RRBs compared for the 7″ (top) and 13″ (bottom) offset positions. The continuum-subtracted profiles were shifted in wavenumber to optimise the comparison. At 7″ the zero wavenumbers for the three RRBs correspond to 5798.9, 5852.7, and 6615.4 Å. And at 13″ the zero wavenumbers correspond to 5798.3, 5852.3, and 6614.8 Å, respectively. The 5850 and 6615 Å RRB profiles (at both offset positions) were scaled by factors of 1.75 and 2.5, respectively, to match the peak intensity of the 5800 Å RRB. In this figure the displayed spectra were not smoothed. Both panels are shown in identical wavenumber and intensity ranges. Note also the “inversed” profiles with respect to those plotted as a function of wavelength.
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