Radial Velocity Variations of the Hα and NaI D Lines for the High-Latitude Supergiant Star 89 Her

• Autorzy: Khalilov A. M. , Hajiyeva G. M. , Hasanova A. R. , Hasanova A. B.

Identyfikatory

DOI

10.32023/0001-5237/72.4.4

• Języki publikacji: EN

Abstrakty

EN

The variations in the spectral parameters of the Hα and sodium doublet NaI D lines of the high-latitude supergiant 89 Her were investigated on the basis of the spectrograms obtained at the 2-m telescope of Shamakhy Astrophysical Observatory between 1975 and 2017. The research has shown that, in addition to shorter periodic changes, which were found earlier by various authors, there are also long period changes in the atmosphere of this star. It has been found that the Hα and sodium doublet NaI D line's radial velocity and the equivalent width of the absorption component vary with a period of 5000 d. The orbital elements of the binary system were determined for the first time within the spectroscopic-binary system model.

Słowa kluczowe

EN

supergiants; stars: individual: 89 Her; techniques: spectroscopic

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2022
• Tom: Vol. 72, No. 4
• Strony: 297--313
• Opis fizyczny: Bibliogr. 32 poz., tab., wykr.

Twórcy

autor

Khalilov A. M.

• Shamakhy Astrophysical Observatory named after N. Tusi of the Ministry of Science and Education of the Republic Azerbaijan, Shamakhy, Azerbaijan

autor

Hajiyeva G. M.

• Shamakhy Astrophysical Observatory named after N. Tusi of the Ministry of Science and Education of the Republic Azerbaijan, Shamakhy, Azerbaijan

autor

Hasanova A. R.

• Shamakhy Astrophysical Observatory named after N. Tusi of the Ministry of Science and Education of the Republic Azerbaijan, Shamakhy, Azerbaijan

autor

Hasanova A. B.

• Shamakhy Astrophysical Observatory named after N. Tusi of the Ministry of Science and Education of the Republic Azerbaijan, Shamakhy, Azerbaijan

Bibliografia

• Abt, H.A. 1957, ApJ, 126, 138.
• Antokhin, I., Bertrand, J.-F., Lamontagne, R., Moffat, A.F.J., and Matthews, J. 1995, AJ, 109, 817.
• Arellano Ferro, A.A. 1984, PASP, 96, 641.
• Böhm-Vitense, E. 1956, PASP, 68, 57.
• Burki, G., Mayor, M., and Rufener, F. 1980, A&AS, 42, 383.
• Bujarrabal, V., van Winckel, H., Neri, R., Alcolea, J., Castro-Carrizo, A., and Deroo, P. 2007, A&A, 468, 45.
• Fernie, J.D. 1981, ApJ, 243, 576.
• Fernie, J.D. 1989, PASP, 101, 171.
• Fernie, J.D. 1990, PASP, 102, 1143.
• Fernie, J.D. 1991, PASP, 103, 1087.
• Fernie, J.D., and Seager, S. 1993, PASP, 105, 751.
• Fernie, J.D., and Seager, S. 1995, PASP, 107, 853.
• Galazutdinov, G.A. 1992, News of the Special Astrophysical Observatory of the Russian Academy of Sciences, Nizhnii Arkhyz, 92.
• Gangi, M., Giarrusso, M., Munari M., et al. 2021, MNRAS, 500, 926.
• Horne, J.H., and Baliunas, S.L. 1986, ApJ, 302, 757.
• Khalilov, A.M., and Hasanova, A.R. 2007, Azerbaijani Astronomical Journal, 2, 20.
• Khalilov, A.M., Hasanova, A.R. and Shustarev, P.N. 2010, Azerbaijani Astronomical Journal, 5, 23.
• Khalilov, A.M., Hasanova, A.R., and Hajiyeva, G.M. 2019, Kinematics and Physics of Celestial Bodies, 35, 143.
• Kiss, L.L., Szatmary, K., and Vinko, J. 2003, Communications of the Konkoly Observatory, “The interaction of stars with their environment II.”, 123.
• Kopylov, I.M., Vitrichenko, E.A., Galkina, T.S., and Gollandskii, O.P. 1963, Izvestiya Krimean Astrophysical Observatory, 30, 42.
• Leone, F., Gangi, M., Giarrusso, M., et al. 2018, MNRAS, 480, 1656.
• Mikailov, X.M. Khalilov, V.M., and Alekberov, I.A. 2005, Circular of the Shamakhy Astrophysical Observatory, 109, 21.
• Mikhailov, A.A. 1962, “A Course in Astrophysics and Stellar Astronomy”, Moscow, Izdatelstvo Nauka.
• Molina, R.E. 2012, Revista Mexicana de Astronomía y Astrofísca, 48, 95.
• Percy, J.R., Bakos, A.G., and Henry, G.W. 2000, PASP, 112, 840.
• Sasselov, D.D. 1983a, IBVS, 2314.
• Sasselov, D.D. 1983b, IBVS, 2387.
• Sasselov, D.D. 1984, Astrophys. and Space Sci., 102, 161.
• Sargent, W., and Osmer, P.S. 1969, in: “Mass Loss from Stars” Proceedings of the Second Trieste Colloquium on Astrophysics, p. 57.
• Scargle, J.D. 1982, ApJ, 263, 835.
• Waters, L.B.F.M., Waelkens, C., Mayor, M., and Trams, N.R. 1993, A&A, 269, 242.
• Worley, C.E. 1956, PASP, 68, 62.