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The analysis of Li i 6708A line through the rotational period of HD166473 taking into account Paschen-Back magnetic splitting

  • A. V. Shavrina (a1), V. Khalack (a2), Y. Glagolevskij (a3), D. Lyashko (a4), J. Landstreet (a5) (a6), F. Leone (a7) and M. Giarrusso (a7)...

Abstract

The analysis of Li i 6708 Å line was performed for 6 rotational phases distributed over the whole rotational period (~9.5 years) of HD166473. The magnetic field model was constructed based on the polarimetric measurements from Mathys et al. (2007). For each observed phase the modulus of the magnetic field was also estimated from simulation of the Fe ii 6147 Å, 6149 Å and Pr iii 6706.7 Å line profiles taking into account Zeeman magnetic splitting. The lithium abundance in each phase was obtained from fitting the observed Li i 6708 Å profile with the synthetic one calculated assuming Paschen-Back splitting and estimated magnetic field characteristics from Pr iii 6706.7 Å line profile.

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References

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Gelbmann, M., Ryabchikova, T., Weiss, W. W., Piskunov, N., Kupka, F., & Mathys, G. 2000, A&A, 356, 200
Gerth, E. & Glagolevskij, Y. 2003, Bulletin of SAO, 56, 25
Grevesse, N., Asplund, M., Sauval, A. J., & Scott, P. 2010, Ap&SS, 328, 179
Khalack, V. & Landstreet, J. 2012, MNRAS, 427, 569
Mathys, G., Kurtz, D. W., & Elkin, V. G. 2007, MNRAS, 380, 181
Shavrina, A. V., Polosukhina, N. S., Khan, S., et al. 2006, Astron. Rep. 50 N6, 500
Shavrina, A. V., Polosukhina, N. S., Zverko, J., Khalack, V., Tsymbal, V. V. & Žižňovský, J. 2001, A&A, 372, 571
Stift, M. J., Leone, F. & Landi Degl'Innocenti, E. 2008, MNRAS 385, 1813
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