engleski

An abundance analysis for Vega: Is it a Lambda Boo star?

Since Baschek and Slettebak (1988) drew attention to the similarity between the abundance pattern of Lambda Boo stars and that of Vega, there has been a long debate whether Vega should be listed among the chemically peculiar stars of Lambda Boo type. We performed an elemental abundance analysis using a high dispersion spectrum in the optical region, and confirmed its mild metal underabundance. In our discussion we reinforce the suggestion that Vega is a mild Lambda Boo star.

chemically peculiar stars; Lambda Boo stars; Vega

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