创造性
发表于 2025-3-25 03:57:35
https://doi.org/10.1007/978-1-4613-2823-0ic observations in the 1930’s. The light curve of this star from the end of the 19th century to 1954 was studied by Binnendijk (1949, 1955). Botsula and Sharov (1959) and Sharov (1961) added some old and new observations and continued the light curve up to 1959.
Canary
发表于 2025-3-25 10:53:27
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防水
发表于 2025-3-25 15:34:24
Lecture Notes in Computer Sciencests and knowledge. I hope however at least to mention all forms of observed behaviour within these limitations, but note that as we have specific sessions on energy distributions, rotation, observations at unusual wavelengths (i.e., not from 3500 to 6700 Å), and polarisation, I shall deal less thoro
伦理学
发表于 2025-3-25 16:08:30
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生气地
发表于 2025-3-25 20:24:43
Adam Wojciechowski,Krzysztof Gorzynskihave inferred ages and intrinsic (. — .) colors of Be stars to permit a discussion of their evolutionary states..Rotating stars can become Be stars in their early hydrogen burning evolution away from the main sequence. Both the fraction of stars showing hydrogen emission and the strength of emission
拖网
发表于 2025-3-26 03:28:29
Lecture Notes in Computer Sciencef about one day. Its binary nature is doubtful according to Olsen (1972). We have detected rapid spectroscopic variations in October 1973 when . And had no envelope, that is, when it appeared as a ‘normal’ B star. Spectrograms of 7.2 Å mm. dispersion were obtained at the Haute Provence Observatory w
分开
发表于 2025-3-26 05:02:55
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chastise
发表于 2025-3-26 11:13:01
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Matrimony
发表于 2025-3-26 13:12:57
Prefatory Remarks on Part I: Law and Codeentral intensities of both lines vary periodically with the period of velocity changes equal to 46.194 days, reaching two maxima and minima each cycle. Radia-velocity curves of individual Balmer lines differ systematically one from another, the amplitude of the H. variations being largest. The ./. r
dithiolethione
发表于 2025-3-26 17:46:03
Mireille Hildebrandt,Jeanne Gaakeerring their observed profiles of Hγ and H. with those computed from the Princeton model atmospheres and the VCS theory of hydrogen line broadening. The program stars are predominately well-known Be stars and display a wide range of envelope spectra and . sin .. The mean and range in log . for the Be