Title of article
A high-spectral-resolution study of abundances and isotopic composition of BHB stars in NGC 6397 and NGC 6752
Author/Authors
S. Hubrig، نويسنده , , F. Castelli، نويسنده , , Dakshina G. De Silva، نويسنده , , J. F. Gonzalez، نويسنده , , Y. Momany and A. Renzini، نويسنده , , M. Netopil، نويسنده , , S. Moehler، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
1
From page
421
To page
421
Abstract
Large abundance anomalies have previously been detected in horizontal-branch Btype stars. We present the first high-resolution study of isotopic anomalies and chemical abundances in six horizontal-branch B-type stars in the globular clusters NGC 6397 and NGC 6752, carried out with UVES on the VLT and compare them to those observed in chemically peculiar main-sequence stars.
Keywords
diffusion , stars: horizontal-branch , stars: abundances , stars: fundamental parameters , stars: Population II , globular clusters: individual (NGC 6397 , NGC 6752) , stars: chemically peculiar
Journal title
Proceedings of the International Astronomical Union
Serial Year
2009
Journal title
Proceedings of the International Astronomical Union
Record number
675059
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