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Information × Registration Number 0308U008430, 0106U012584 , R & D reports Title Chemical compoыешщт of supergiants of classes A, F, G and a problem of lithium in СР-stars popup.stage_title Завершення аналізу змістів вуглецю та азоту для надгігантів. Визначення змісту натрію для цих зірок. Аналіз ліній редкоземельных елементів Head Lyubimkov Leonid S., Registration Date 05-01-2009 Organization Scientific-research institute "Crimean astrophysical observatory" popup.description2 A technique is modified for determination of fundamental parameters and chemical composition of the F- and G-type supergiants. Тhe fundamental parameters of all F and G supergiants in our list are derived. An analysis of the C, N and Na abundances in atmospheres of the supergiants is implemented, which showed a necessity of allowance for departures from LTE. An analysis of spectra of the star HD 12098 led to discovery of "lithium" spots on its surface. Product Description popup.authors popup.nrat_date 2020-04-02 Close