Fig. 3
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Example of DIB λ6614 feature fitting for stars with different stellar parameters. The normalized ISM spectra are shown in black, with the DIB λ6614 feature modeled by a Gaussian profile in red. The blue vertical dashed line indicates the rest wavelength of DIB λ6614 in air at 6613.66 Å (Vogrinčič et al. 2023). The orange vertical dashed lines mark the wavelength range used for fitting.
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