The abundances of heavy elements in red supergiants of Magellanic Clouds
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Date
2013
Authors
Gopka, Vera F.
Yushchenko, A. V.
Kovtyukh, Valery V.
Shavrina, Angelina V.
Yushchenko, V. A.
Vasilyeva, S. V.
Pavlenko, Y.
Andrievsky, Serhii M.
Андрієвський, Сергій Михайлович
Андриевский, Сергей Михайлович
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Astroprint
Abstract
ABSTRACT. The spectra of Magellanic Clouds
(MC) supergiants PMMR 23, PMMR 144 and RM 1-
667 with resolving power R=30,000 and signal to noise ratio near 100 obtained at 3.6 meter telescope in Chile were analysed. We present a report on the detailed investigation of MC supergiants, with spesial attention to the thorium abundance in these stars.
The abundance patterns of three supergiants show that r-process elements are clearly detected in the atmospheres of investigated stars, but the abundances of s-processes elements can vary from star to star.
Description
Odessa Astronomical publications / Одесская астроном. обсерватория . – Одесса : Астропринт, 2013 . – Vol.26/1.
Keywords
Magellanic Clouds, supergiants, chemical abundances, heavy elements, r-process elements, s-process elements
Citation
Odessa Astronomical Publications