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Lithium in Cool Magnetic CP Stars: Some New Results of Observations, Using CAT (ESO) 2.6m (CrAO), (NOT) La Palma Telescopes

Published online by Cambridge University Press:  25 May 2016

N. Polosukhina ,
D. Kurtz ,
M. Hack ,
P. North ,
I. Ilyin  and
J. Zverko
N. Polosukhina
Affiliation:
1Crimean Astrophysical Observatory Nauchny, Crimea, Ukraine
D. Kurtz
Affiliation:
2University of Cape Town, Rondebosh 7700, South Africa
M. Hack
Affiliation:
3Department of Astronomy, Trieste University, Italy
P. North
Affiliation:
4Institut d’Astronomie de l'Universitè de Lausanne, CH 1290, Switzerland
I. Ilyin
Affiliation:
5University of Oulu, P.O. Box 3000, 90401 Oulu, Finland
J. Zverko
Affiliation:
6Astronomical Institute of the Slovak Academy of Science, 05960 Tatranska Lomnica, The Slovak Republic

Extract

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Lithium in cool magnetic CP stars in still poorly studied and estimations of the Li abundance in these stars are scarce. There is some evidence of variability of the LiI 6708 Â line, but this variability has not been studied systematicaly. Even the identification of the 6708 Â line with the LiI resonance doublet is still in doubt. This problem is important in the broader context of the Li abundance in various types of stars, as well as for deeper undersfanding of the magnetic star phonomenon itself. The reason for fhis is that the Li abundance in very sensitive to evolutionary status of the stars and their properties, such as the character and intensity of mixing processes.

Type
6. Stellar Knowledge to and from Light Elements
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 489 - 494
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

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Zverko, J., Žižňovsky, J., North, P., 1998, Contrib. Astron. Obs. Skalnaté Pleso 28, 109 Google Scholar
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