Article (Scientific journals)
The chemical composition of the extreme halo stars. III - Equivalent widths of 20 dwarfs
Zhao, G.; Magain, Pierre
1990In Astronomy and Astrophysics. Supplement Series, 86, p. 85-93
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Keywords :
CHEMICAL COMPOSITION; DWARF STARS; GALACTIC EVOLUTION; HALOS; SPECTRAL LINE WIDTH; ASTRONOMICAL PHOTOMETRY; CASSEGRAIN OPTICS; CHARGE COUPLED DEVICES; SIGNAL TO NOISE RATIOS
Abstract :
[en] In the first two papers of this series the chemical composition of 20 extreme halo stars was discussed. The abundances of a number of elements were determined using model atmosphere analysis of equivalent widths. In this paper a tabulation of the equivalent width data is presented. A comparison of the measurements with the equivalent widths from different sources is used to assess the quality of the data.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Zhao, G.;  European Southern Observatory, Garching, Federal Republic of Germany ; Nanjing University, People's Republic of China
Magain, Pierre  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Language :
English
Title :
The chemical composition of the extreme halo stars. III - Equivalent widths of 20 dwarfs
Publication date :
01 November 1990
Journal title :
Astronomy and Astrophysics. Supplement Series
ISSN :
0365-0138
eISSN :
1286-4846
Publisher :
EDP Sciences, Les Ulis, France
Volume :
86
Pages :
85-93
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 February 2010

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