Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Vira F. Gopka"'
Autor:
Yeuncheol Jeong, Alexander V. Yushchenko, Vira F. Gopka, Volodymyr O. Yushchenko, Valery V. Kovtyukh, Svetlana V. Vasil’eva
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 35, Iss 1, Pp 19-30 (2018)
The analysis of the high-resolution spectra of 31 Magellanic Clouds Cepheid variables enabled the identification of thorium lines. The abundances of thorium were found with spectrum synthesis method. The calculated thorium abundances exhibit correlat
Externí odkaz:
https://doaj.org/article/1964978ac7c943729a83d6806c59f6c1
Autor:
Alexander V. Yushchenko, Yeuncheol Jeong, Vira F. Gopka, Svetlana V. Vasil’eva, Sergey M. Andrievsky, Volodymyr O. Yushchenko
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 3, Pp 199-205 (2017)
A high resolution spectroscopic observation of the red supergiant star RM_1-390 in the Large Magellanic Cloud was made from a 3.6 m telescope at the European Southern Observatory. Spectral resolving power was R=20,000, with a signal-to-noise ratio
Externí odkaz:
https://doaj.org/article/a9734bb9b8364b97889db4e01c99d214
Autor:
Yeuncheol Jeong, Alexander V. Yushchenko, Dmytry N. Doikov, Vira F. Gopka, Volodymyr O. Yushchenko
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 34, Iss 2, Pp 75-82 (2017)
High-resolution spectroscopic observations of the eclipsing binary system RR Lyn were made using the 1.8 m telescope at the Bohuynsan Optical Astronomical Observatory in Korea. The spectral resolving power was R = 82,000, with a signal to noise rat
Externí odkaz:
https://doaj.org/article/2072f395b4594ce68455e7f4c69492ba
Autor:
Alexander V. Yushchenko, Vira F. Gopka, Young-Woon Kang, Chulhee Kim, Byeong-Cheol Lee, Volodymyr A. Yushchenko, Tatyana N. Dorokhova, Dmytry N. Doikov, Petro V. Pikhitsa, Kyeongsoo Hong, Sungeun Kim, Jae-Woo Lee, Pakakaew Rittipruk
Publikováno v:
Astronomical Journal; Feb2015, Vol. 149 Issue 2, p1-1, 1p