ADORN
发表于 2025-3-27 00:06:52
Variations in the Radio Flux of the Hypergiant P Cygni (B1 Ia+)The radio flux of P Cygni is variable on a time scale of months or shorter. The variations are interpreted as variations in the degree of ionization of the wind due to the ejection of shells which shield the wind from the ionizing radiation of the star. The observed time scale agrees with the recombination time scale of the wind.
Jacket
发表于 2025-3-27 03:51:07
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凝乳
发表于 2025-3-27 07:50:19
Astrophysics and Space Science Libraryhttp://image.papertrans.cn/r/image/820650.jpg
Irrepressible
发表于 2025-3-27 11:33:10
https://doi.org/10.1007/978-94-009-5420-5Accretion; astronomy; relativistic jet; stars; stellar
elucidate
发表于 2025-3-27 13:57:09
several innovative information technologies and products have witnessed the changes of learning behaviors in recent years. Among them, how to use e-books to improve the learning performance of audience has become a promising research topic because it can be used to automatically record the reading
宽容
发表于 2025-3-27 19:27:55
several innovative information technologies and products have witnessed the changes of learning behaviors in recent years. Among them, how to use e-books to improve the learning performance of audience has become a promising research topic because it can be used to automatically record the reading
高度赞扬
发表于 2025-3-28 00:19:04
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宇宙你
发表于 2025-3-28 04:20:31
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Congruous
发表于 2025-3-28 08:17:20
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Jingoism
发表于 2025-3-28 11:36:59
D. J. Mullannting virtual world classrooms, complete with student and teacher avatars, is increasingly achievable by individual teachers. Virtual world classrooms match the effectiveness of traditional classrooms while brining an up-to-date element into the class and satisfying increasing demands for distance l