Solid confirmation of the broad dib around 864.8 nm using stacked gaia-rvs spectra

HIGHLIGHTS

SUMMARY

    Despite the unknown nature of DIBs, absorption intensity maps have been built for several such features detected in large spectroscopic surveys (e_g, Kos et_al 2014; Zasowski et_al 2015; Baron et_al 2015b; Lan et_al 2015; Puspitarini et_al 2015) to explore the interstellar medium (ISM) and Galactic structure. Among them, the latest map was built for the DIB at 862 nm (DIB λ862) using data from the Gaia Radial Velocity Spectrometer (RVS; Seabroke et_al, in prep.) in Data Release 3, which has the largest sky coverage to date (see Gaia Collaboration 2022d for more details). Studies . . .

     

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