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Elemental abundances of the B and A stars Gamma Geminorum, 7 Sextantis, HR 4817, and HR 5780
1992
Publications of the Astronomical Society of the Pacific
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Fine analyses of the B and A stars, y Geminorum, 7 Sextantis, HR 4817, and HR 5780 are performed. Although the data cover rather limited spectral regions, still useful results were obtained. The data were mostly obtained at the KPNO coudé feed telescope with CCD TI No. 3, camera 5, and grating A. The He/H ratio of HR 4817 confirms the similarity of many abundance values with those of the peculiar Mn star 53 Tauri. For the most part y Gem, 7 Sex, and HR 5780 have derived abundances similar to
doi:10.1086/132999
fatcat:kvuehcq2tng5rfzvpqgdu5ida4