The diffuse interstellar band around 8620 Å

We aim to make use of the measurements from Giraffe Inner Bulge Survey (GIBS) and Gaia$-$ESO survey (GES) study kinematics distance carrier DIB$\,\lambda$8620, as well other properties. successfully detected measured DIB$\,\lambda$8620 in 760 4117 GES spectra. Combined with DIBs GIBS spectra, we confirmed a tight relation between EW $E(J-K_{\rm S})$ $A_{\rm V}$, similar fitting coefficients those found by previous works. With more accurate sample consideration solar motion, rest-frame wavelength was redetermined 8620.83 \r{A}, mean fit error 0.36 \r{A}. studied DIB carriers tracing their median radial velocities each field local standard rest ($V_{\rm LSR}$) into galactocentric frame GC}$), respectively, function Galactic longitudes. Based on $V_{\rm LSR}$ two rotation models, obtained valid kinematic distances for nine ten fields. also linear this work near-infrared APOGEE spectra at $1.5273\,\mu m$. demonstrate that can be located much closer observer than background stars based following arguments: (i) qualitatively, occupy longitude$-$velocity diagram typical disk, while are mainly bulge; (ii) quantitatively, all derived smaller field.