Probing the Local Bubble with Diffuse Interstellar Bands. III. The Northern hemisphere data and catalog
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We present a new high signal-to-noise (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 $\lambda$5780 and $\lambda$5797 \AA\ DIBs up to distance of $\sim$ 200 pc. All observations have been carried out by using Intermediate Dispersion Spectrograph (IDS) on 2.5 m Isaac Newton Telescope, during three years, to reach a minimum S/N ratio of $\sim$ 2000. All $\lambda$5780 and $\lambda$5797 absorptions are presented in this paper and the observed values of interstellar parameter; $\lambda$5780, $\lambda$5797, Na I D lines including the uncertainties are tabulated.
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A three-dimensional map of the hot Local Bubble using diffuse interstellar bands
A 3D map of the Local Bubble from λ5780 and λ5797 DIBs reveals lower 5797/5780 ratios inside, indicating the λ5780 carrier withstands hot-gas destruction better than the λ5797 carrier.
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