Abstract
Photographic spectra obtained with the Coudé-spectrograph of the 2-m telescope of BNAO – Rozhen have been used for mapping the elements surface distribution of 36 Lyn. The maps of the distribution of helium, silicon, chromium and magnesium are presented. The results show that helium, silicon and chromium are concentrated mainly in the magnetic equator region. Magnesium is distributed more or less uniformly on the stellar surface.
Similar content being viewed by others
References
Abt, H. and Levato, H.: 1978, Publ. Astron. Soc. Pac. 90, 201.
Adelman, S. and Pyper, D.: 1983, Astron. Astrophys. 118, 313.
Alecian, G. and Vauclair, S.: 1981, Astron. Astrophys. 103, 244.
Balona, L.: 1984, Mon. Not. R. Astron. Soc. 211, 973.
Bohlender, D.A.: 1994, in: L.A. Balona (ed.), Proc. of IAU Symp. 162 ‘Pulsation, Rotation and Mass Loss in Early-Type Stars’, p. 155.
Borkowsky, J.: 1988, Internal report of Torun Observatory (in polish).
Borra, E., Landstreet, J. and Thompson, I.: 1983, Astrophys. J. Suppl. 53, 151.
Cowley, C.: 1972, Astron. J. 77, 750.
Deutsch, A.: 1970, Astrophys. J. 159, 985.
Engins, S.: 1974, Astron. Astrophys. 32, 93.
Goncharskij, A., Ryabchikova, T., Stepanov, V., Khokhlova, V. and Yagola, A.: 1983, Soviet Astron. 60, 83.
Floquet, M.: 1979, Astron. Astrophys. 77, 263.
Hatzes, A.: 1991a, Mon. Not. R. Astron. Soc. 248, 487.
Hatzes, A.: 1991b, Mon. Not. R. Astron. Soc. 253, 89.
Hauck, B. and Mermilliod, M.: 1990, Astron. Astrophys. Suppl. 86, 107.
Hensler, G.: 1979, Astron. Astrophys. 74, 284.
Khokhlova, V. and Pavlova, V.: 1984, Pis 'ma Astron. Zh. 10, 377.
Kuschnig, R., Ryabchikova, T., Piskunov, N. and Weiss, W.: 1995, in: K. Strassmeier (ed.), Proc. of IAU Symp. 176 ‘stellar surface structure’, p. 135.
Megessier, C.: 1975, Astron. Astrophys. 39, 263.
Megessier, C.: 1984, Astron. Astrophys. 138, 267.
Molnar, M.: 1972, Astrophys. J. 175, 453.
Moon, T.: 1985, Commun. Univ. London Obs., No. 78, 1.
Moon, T. and Dworetsky, M.: 1985, Mon. Not. R. Astron. Soc. 217, 305.
North, P. and Nicolet, A.: 1990, Astron. Astrophys. 228, 78.
Piskunov, N., Ryabchikova, T., Kuschnig, R. and Weiss, W.: 1994, Astron. Astrophys. 291, 910.
Preston, G.: 1971, Publ. Astron. Soc. Pac. 83, 571.
Pyper, D.: 1969, Astrophys. J. 18, 347.
Rice, J. and Wehlau, W.: 1990, Astron. Astrophys. 233, 503.
Rufener, A.: 1981, Astron. Astrophys. Suppl. 45, 207.
Ryabchikova, T. and Stateva, I.: 1995, Vienna Workshop on Model Atmospheres and Spectrum Synthesis for mid B through mid G stars at or close to the Main Sequence, July 1995.
Searle, L. and Sargent, W.: 1967, in: R. Cameron (ed.), The magnetic and related stars, Memo Book, p. 209.
Shore, S., Brown, D., Sonneborn, G. and Landstreet, J.: 1990, Astrophys. J. 348, 242.
Shore, S. and Brown, D.: 1990, Astrophys. J. 365, 665.
Stateva, I.: 1993, in: J. Zverko and J. Ziznovsky (eds.), Proc. of Intern. Confer. ‘Chemically peculiar and magnetic stars on and close to upper main sequence’, p. 171.
Stepień, K. and Dominiczak, R.: 1989, Astron. Astrophys. 219, 197.
Stibbs, P.: 1950, Mon. Not. R. Astron. Soc. 110, 395.
Vilhu, O., Tuominen, I. and Boyarchuk, A.: 1976, in: W. Weiss, H. Jenkner and H. Wood (eds.), Proc. of IAU Coll. 32 ‘Physics of Ap stars’, p. 563.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Stateva, I. Study of the Element Distribution on the Surface of the He-weak star 36 lyn. Astrophysics and Space Science 250, 245–259 (1997). https://doi.org/10.1023/A:1000488706140
Issue Date:
DOI: https://doi.org/10.1023/A:1000488706140