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 dis
tance 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.
We present a new high signal to noise ratio spectroscopic survey of the Northern hemisphere to probe the Local Bubble and its surroundings using the $lambda 5780$ AA and $lambda 5797$ AA Diffuse Interstellar Bands (DIBs). We observed 432 sightlines t
o a distance of 200 pc over a duration of 3 years. In this study, we establish the $lambda 5780$ and $lambda 5797$ correlations with Na I, Ca II and E(B-V), for both inside and outside the Local Bubble. The correlations show that among all neutral and ionized atoms, the correlation between Ca II and $lambda5780$ is stronger than its correlation with $lambda5797$, suggesting that $lambda5780$ is more associated with regions where Ca$^{+}$ is more abundant. We study the $lambda5780$ correlation with $lambda5797$, which shows a tight correlation within and outside the Local Bubble. In addition we investigate the DIB properties in UV irradiated and UV shielded regions. We find that, within and beyond the Local Bubble, $lambda5797$ is located in denser parts of clouds, protected from UV irradiation, while $lambda5780$ is located in the low density regions of clouds.
