Titlebook: Binary and Multiple Stars as Tracers of Stellar Evolution; Proceedings of the 6 Zdenék Kopal,Jürgen Rahe Conference proceedings 1982 D. Rei

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Struktur des Internationalen Steuerrechts, Observations by Tamman and Sandage (1968) and Rosino and Bianchini (1973) followed. The main characteristics are high luminosity (L/L⊙ ≈ 10.), blue color indices, F type spectra and irregular variability.

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Internationales Steuerrecht in der Praxisent photometric method proposed by Fernie (1980). If applied to the set of VBLUW observations of southern Cepheids carried out by Pel (1976), this method gives a frequency of about 25%, which is consistent with the more recent spectroscopic determinations (Gieren, 1981). The importance of the IUE sa

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Ausgangslage, Zielsetzung und Aufbau,e variations in relative positions of the eclipses and the comparison with different theoretical models, we could deduce that the discrepancy, previously reported by several authors between theory and observations, is no longer supported. Moreover, a strong correlation has been found between the evo

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https://doi.org/10.1007/978-3-8350-9049-1etecting additional components in them. Systematic study of the period changes in binary stars was started by Plavec (Plavec et al 1960) more than twenty years ago. Work on the same lines for 20 detached systems was reported by Herczeg (1980) at the I.A.U. Symposium No. 88 held in Toronto two years

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