The radial velocity variations of the Na I D lines for the high-latitude supergiant star 89 Her
Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, A. M. Khalilov, A. R. Hasanova, Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, G. M. Hajiyeva, Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory
Abstract
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