Elemental abundances of 4 Lac and nu Cep
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Elemental abundance analysis based on high S/N and high resolution Dominion Astrophysical Observatory spectrograms have been performed for two early type supergiants: 4 Lac (B9...
本研究针对两颗早型超巨星(4 Lac(B9……)),采用高信噪比(Signal-to-Noise Ratio, S/N)与高分辨率的自治领天体物理天文台(Dominion Astrophysical Observatory)光谱图开展了元素丰度分析。



