Image Details
Caption: Fig. 10.
Origin band of the ﹩^{2}\Pi \leftarrow X^{2}\Pi ﹩ electronic transition of HC﹩_{5}﹩N﹩^{+}﹩ in the gas phase (bottom) compared to three selected stars. The C IV feature blends a possible DIB. The astronomical spectra show a weak interstellar feature coinciding with the laboratory spectrum.
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