Advertisement

Astronomy Reports

, Volume 63, Issue 11, pp 944–947 | Cite as

Dependence of Microturbulence in F Stars on Spectral Type

  • Z. A. SamedovEmail author
Article
  • 4 Downloads

Abstract

Microturbulence in the atmospheres of F stars is studied using model atmospheres. The microturbulence velocity is determined by comparing calculated and observed equivalent widths of Fe II lines. The line equivalent widths were measured using the DASA code developed at the Crimean Astrophysical Observatory of the Russian Academy of Sciences. An inverse dependence of the microturbulence velocity ξt on the gravity g in the stellar atmospheres is found; i.e., ξt decreases with increasing g.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Asplund, A. Nordlund, R. Trampedach, C. Allende Prieto, and R. F. Stein, Astron. Astrophys. 359, 729 (2000).ADSGoogle Scholar
  2. 2.
    L. S. Lyubimkov, T. M. Rachkovskaya, and D. B. Poklad, Astrophysics 52, 217 (2009).ADSCrossRefGoogle Scholar
  3. 3.
    B. Hauck and M. Mermilliod, Astron. Astrophys. Suppl. Ser. 129, 431 (1998).ADSCrossRefGoogle Scholar
  4. 4.
    F. Castelli and R. L. Kurucz, in Modelling of Stellar Atmospheres, Ed. by N. E. Piskunov, W. W. Weiss, and D. F. Gray, Proc. IAU Symp. 210, A20 (2003).Google Scholar
  5. 5.
    F. Castelli and R. L. Kurucz, Astron. Astrophys. 454, 333 (2006).ADSCrossRefGoogle Scholar
  6. 6.
    R. L. Kurucz, ATLAS9 Stellar Atmosphere Programs and 2 km/s Grid, CD-ROM 13 (Smithsonian Astrophys. Obs., Cambridge, MA, 1993).Google Scholar
  7. 7.
    L. S. Lyubimkov, Chemical Composition of Stars: Method and Analysis Results (Astroprint, Odessa, 1995) [in Russian].Google Scholar
  8. 8.
    A. A. Boyarchuk, L. S. Lyubimkov, and N. A. Sakhibullin, Astrofizika 22, 339 (1985).ADSGoogle Scholar
  9. 9.
    F. Thevenin and T. P. Idiart, Astrophys. J. 521, 753 (1993).ADSCrossRefGoogle Scholar
  10. 10.
    L. S. Lyubimkov and Z. A. Samedov, Astrofizika 32, 49 (1990).ADSGoogle Scholar
  11. 11.
    F. N. Kupka, T. Piskunov, A. Ryabchikova, H. C. Stempels, and W. W. Weiss, Astron. Astrophys. Suppl. Ser. 138, 119 (1999).ADSCrossRefGoogle Scholar
  12. 12.
    R. E. Luck, Astron. J. 147, 137 (1999).ADSCrossRefGoogle Scholar
  13. 13.
    S. M. Andrievsky, J. R. D. Lepine, S. A. Korotin, R. E. Luck, V. V. Kovtyukh, and W. J. Maciel, Mon. Not. R. Astron. Soc. 428, 3252 (2013).ADSCrossRefGoogle Scholar
  14. 14.
    V. V. Kovtyukh, N. I. Gorlova, and S. I. Belik, Mon. Not. R. Astron. Soc. 423, 3268 (2012).ADSCrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Baku State UniversityBakuAzerbaijan
  2. 2.Shemakha observatoryShemakhaAzerbaijan

Personalised recommendations