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

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 نشر من قبل Piercarlo Bonifacio
 تاريخ النشر 2005
  مجال البحث فيزياء
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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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