C,N,O in lambda Boo stars and in composite spectra

R. Faraggiana; P. Bonifacio

doi:10.1051/0004-6361:20042109

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C,N,O in lambda Boo stars and in composite spectra

R. Faraggiana·P. Bonifacio

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Abstract

The selective abundance of C, N, O (almost solar) with respect to that of other elements (underabundant) in lambda Boo stars has been interpreted as a characteristic peculiarity of these objects, when considered as single stars. We show here that a similar selective abundance is predicted from the composite spectra resulting from two unresolved stars in the same temperature range as the lambda Boo stars.

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R. Faraggiana, P. Bonifacio. 2005-04-05. C,N,O in lambda Boo stars and in composite spectra. https://doi.org/10.1051/0004-6361%3A20042109

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