Optical and 21-cm observations of high-velocity gas towards subdwarfs in the halo and early-type stars in the disk
We present a study of high-velocity gas in the direction of 13 halo sub-dwarfs located at absolute value of z approximately equals 0.5-2 kpc and of 8 early-type stars in the Galactic disk at d approximately equals 1-4 kpc. For each line of sight of our sample we collected Ca II and Na I absorption spectra with the 2.5-m Isaac Newton Telescope at La
Centurion, M. et al.
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1994