Titlebook: Radio Recombination Lines: 25 Years of Investigation; Proceeding of the 12 M. A. Gordon,R. L. Sorochenko Conference proceedings 1990 Kluwer

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H. E. Payne,K. R. Anantharamaiah,W. C. Ericksonns (e.g., . and .) given to an application requiring higher security are revoked in case users configure less reliable features (e.g., open . or .) on their smart devices. Thus, our model dynamically fulfills the security criteria of the security-sensitive applications and revokes resources access p

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Astrophysics and Space Science Libraryhttp://image.papertrans.cn/r/image/820644.jpg

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https://doi.org/10.1007/978-94-009-0625-9Astronomical Observation; Galaxy; star; stars; stellar

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Radio Recombination Lines: 25 Years of Investigation978-94-009-0625-9Series ISSN 0067-0057 Series E-ISSN 2214-7985

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Postulation, Detection and Observations of Radio Recombination Lines (Review)Radio recombination lines (RRL) detected 25 years ago are now investigated in a wide, from mm to dam, range of wavelengths It has been cleared out that in Galaxy conditions an atom as a quantum system may exist with excitation level n of up to 1000 reaching the giant size of 0.1mm. RRL proved to be a new powerful tool for astrophysical research.

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Review of the Populations of Highly-Excited States of Atoms in Low-Density PlasmasBrief survey of the problem is discriebed. Results obtained with the use of analytical and numerical methods and the methods proper are reviewed. The influence of the nonideal effects on the highly-excited level populations is considered.

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The Broadening of Radio Recombination Lines by Ion Collisions: New Theoretical ResultsWe give new theoretical data for calculating the ion impact broadening of radio recombination α, β, and γ lines. A comparison with other broadening mechanisms is presented.