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On the thorium absorption lines in the visible spectra of supergiant stars in the magellanic clouds |
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| Authors: | V F Gopka A V Shavrina V A Yushchenko S V Vasil’eva A V Yushchenko S M Andrievsky |
| Institution: | 11122. Astronomical Observatory Research Institute, Odessa National University, Shevchenko Park, Odessa, 65014, Ukraine 21122. Main Astronomical Observatory, National Academy of Sciences of Ukraine, ul. Acad. Zabolotnogo 27, Kyiv, 03680, Ukraine 31122. Sejong University, Seoul, 143-747, Republic of Korea |
| Abstract: | We present the results of the analysis of thorium absorption lines in the spectra of metal-deficient stars: the thorium-rich Galactic halo star HD 221170 and some supergiants in the Magellanic Clouds. For all the analyzed stars, the Th II lines were identified by comparing the synthetic and observed spectra. The Th II 6044.433 Å line and the weaker Th II 6619.943 Å line were identified in the spectra of red supergiants in the Magellanic Clouds. |
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