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Fitting of Silicon lines in UV and Balmer Hδ Line in Optical Spectra of B supergiant HD 198478

Published online by Cambridge University Press:  23 April 2012

Tomislav Jurkić ,
Mariza Sarta Deković  and
Dubravka Kotnik-Karuza
Tomislav Jurkić
Affiliation:
Department of Physics, University of Rijeka, Croatia email: tjurkic@phy.uniri.hr, msarta@phy.uniri.hr
Mariza Sarta Deković
Affiliation:
Department of Physics, University of Rijeka, Croatia email: tjurkic@phy.uniri.hr, msarta@phy.uniri.hr
Dubravka Kotnik-Karuza
Affiliation:
Department of Physics, University of Rijeka, Croatia email: tjurkic@phy.uniri.hr, msarta@phy.uniri.hr
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Abstract

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Atmospheric parameters of the Galactic early B-supergiant HD 198478 (55 Cyg) were determined from the UV silicon lines and optical Balmer Hδ 4101 Å line. TLUSTY synthetic spectra were broadened using the ROTIN numerical code in order to determine effective temperature, surface gravity, rotational and macroturbulent velocity.

Keywords

line: profilesstars: fundamental parametersstars: supergiants
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 263 - 264
Copyright
Copyright © International Astronomical Union 2012

References

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