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2009•Proceedings of the International Astronomical UnionOpen access

The Determination of the Abundances of the Fe Group Elements in Early B Stars from High Resolution FUV Spectra

Geraldine J. Peters, Saul J. Adelman, I. Hubený, T. Lanz

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Abstract

Abstract We present selected results from an investigation that is currently underway to determine the abundances of the Fe group elements in early B stars and assess the extent to which contemporary NLTE and LTE models represent their atmospheres. High resolution UV and optical spectra of B stars that display ultrasharp lines are compared with computations from TLUSTY/SYNSPEC and SYNTHE. Some results from our analysis of the abundance standard ι Her (B3V) are presented here.

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Abstract We present selected results from an investigation that is currently underway to determine the abundances of the Fe group elements in early B stars and assess the extent to which contemporary NLTE and LTE models represent their atmospheres. High resolution UV and optical spectra of B stars that display ultrasharp lines are compared with computations from TLUSTY/SYNSPEC and SYNTHE. Some results from our analysis of the abundance standard ι Her (B3V) are presented here.

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Available abstract

Abstract We present selected results from an investigation that is currently underway to determine the abundances of the Fe group elements in early B stars and assess the extent to which contemporary NLTE and LTE models represent their atmospheres. High resolution UV and optical spectra of B stars that display ultrasharp lines are compared with computations from TLUSTY/SYNSPEC and SYNTHE. Some results from our analysis of the abundance standard ι Her (B3V) are presented here.

Key concepts: Stars, Spectral line, Abundance (ecology), Astrophysics, High resolution, Physics, Group (periodic table), Astronomical spectroscopy

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