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| Paper IPM / Astronomy / 14338 |
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We present new high signal-to-noise ratio (S/N) observations of the diffuse interstellar bands (DIBs) in the Local Bubble and its surroundings. We observed 432 sightlines and obtain the equivalent widths of the û5780 and û5797â??Ã? DIBs up to a distance of â?¼200 pc. All of the observations were carried out using the Intermediate Dispersion Spectrograph on the 2.5 m Isaac Newton Telescope, during three years, to reach a minimum S/N of â?¼2000. All of the û5780 and û5797 absorptions are presented in this paper and we tabulate the observed values of the interstellar parameters, û5780, û5797, Naâ??iD1, and Naâ??iD2, including the uncertainties.
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