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- W2029607112 abstract "High dispersion spectra of the cepheid variable RT Aurigae have been used for an analysis of the parameters of the stellar atmosphere over a cycle of pulsation. Eighteen of these spectra were utilized for a study of the radial velocities. The displacement curve derived from the velocities was utilized with the light and colour curves of Eggen, Gascoigne & Burr to furnish by the application of Wesselink's method, a value of |$R/{R}_{odot},=,33cdot 7$| . A differential curve of growth analysis relative to the Sun has been carried out at eleven phases to evaluate the variation of the atmospheric parameters. The range in θexc is from 0·94 to 1·07. The variation of ρk is by a factor of ten over the cycle. A second hump in this curve at phase 0·68 P is perhaps a result of the sudden onset of a pulse of compression. Mean abundances relative to [Fe] have been derived for 21 elements. A general deficiency in s -process elements is seen in comparison with those formed by the e -process." @default.
- W2029607112 created "2016-06-24" @default.
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- W2029607112 date "1969-02-01" @default.
- W2029607112 modified "2023-09-25" @default.
- W2029607112 title "An Analysis of the Cepheid Variable RT Aurigae" @default.
- W2029607112 doi "https://doi.org/10.1093/mnras/142.3.295" @default.
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