Abstract
A spectrum of a sunspot in the range of the Li I λ 670.8 nm line and some lines of Ca I, Ti I, Al I, and Na I was measured. Observations were carried out with the TST-2 telescope of the Crimean astrophysical observatory on August 21, 1981. A model of the spot was calculated from the observed profiles of the Ca I, Ti I, Al I, and Na I lines. From the calculated model and the observed profile of the Li I λ 670.8 nm line, the lithium abundance was estimated as log(N Li) = 0.78 (in the scale of logA(H)= 12.0).
Similar content being viewed by others
References
E. A. Baranovskii and V. P. Tarashchuk, “Lithium Abundance in Sunspots,” Bull. Crim. Astrophys. Obs. 104, 19–25 (2008).
M. Asplund, N. Grevesse, A. J. Sauval, and P. Scott, “The Chemical Composition of the Sun,” Annu. Rev. Astron. Astrophys. 47, 481–522 (2009).
E. A. Baranovsky, “Semiempirical LTE Modeling of Solar Photospheric Layers. I. Theoretical Background,” Contrib. Astron. Obs. Skalnate Pleso 23, 107–117 (1993).
M. Carlsson, R. J. Rutten, J. H. M. J. Bruls, and N. G. Shchukina, “The Non-LTE Formation of Li I Lines in Cool Stars,” Astron. Astrophys. 288, 860–882 (1994).
O. Engvold, O. Kjeldseth Moe, and P. Maltby, “The Solar Lithium Abundance,” Astron. Astrophys. 9, 79–85 (1970).
E. A. Müller, E. Peytremann, and R. de la Reza, “The Solar Lithium Abundance. II: Synthetic Analysis of the Solar Lithium Feature at λ 6707.8 ” Sol. Phys. 41, 53–65 (1975).
S. Ritzenhoff, E. H. Schroter, and W. Schmidt, “The Lithium Abundance in Sunspots,” Astron. Astrophys. 328, 695–701 (1997).
B. Ruiz Cobo and J. C. del Toro Iniesta, “Inversion of Stokes Profiles,” Astrophys. J. 398, 375–385 (1992).
A. V. Shavrina, N. S. Polosukhina, Ya. V. Pavlenko, A. V. Yushchenko, P. Quinet, M. Hack, P. North, V. F. Gopka, J. Zverko, J. Zhiznovsky, and A. Veles, “The Spectrum of the roAp Star HD 101065 (Przybylski’s Star) in the Li I 6708 A Spectral Region,” Astron. Astrophys. 409, 707–713 (2003).
G. Schmahl and E. H. Schröter, “Die Li-Häufigkeit und das Izotopenverhältnis Li6/Li7 in Sonnenflecken,” Z. Astrophys. 62, 143–153 (1965).
V. V. Smith, D. L. Lambert, and P. E. Nissen, “Isotopic Lithium Abundances in Nine Halo Stars,” Astrophys. J. 506, 405–423 (1998).
W. Traub and F. L. Roesler, “The Abundance of Lithium in Sunsports,” Astrophys. J. 163, 629–644 (1971).
E. Wier, G. Stellmacher, and E. H. Schröter, “On Lithium in Sunsports,” Astrophys. Lett. 1, 181–190 (1968).
C. Zwaan, “Structure of Sunspots,” Sol. Phys. 37, 99–111 (1974).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © E.A. Baranovskii, V.P. Tarashchuk, 2012, published in Kinematika i Fizika Nebesnykh Tel, 2012, Vol. 28, No. 5, pp. 50–57.
About this article
Cite this article
Baranovskii, E.A., Tarashchuk, V.P. Lithium abundance in the sunspot from the observational data of August 1981. Kinemat. Phys. Celest. Bodies 28, 239–244 (2012). https://doi.org/10.3103/S0884591312050029
Received:
Published:
Issue Date:
DOI: https://doi.org/10.3103/S0884591312050029