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BIBTEX RIS

Identifications in the Spectra of Eta Carinae and RR Telescopii

1953; Oxford University Press; Volume: 113; Issue: 2 Linguagem: Inglês

10.1093/mnras/113.2.211

ISSN

1365-2966

Autores

A. D. Thackeray,

Tópico(s)

Astronomical Observations and Instrumentation

Resumo

Wave-lengths and intensity estimates of lines in the spectra of Eta Carinae and RR Telescopii between 3700 and 8900 A are presented. Both spectra are characterized by strong Fe II emission, forbidden and permitted, and by weak continua. Representations of individual elements in the two stars are discussed in Section 4 (Eta Carinae) and in Section 8 (RR Tel). Doubly ionized elements (especially O, Ne, S, A and Fe) are better represented in RR Tel which shows in 1952 a transition between the " Eta Carinae " and " nebular " stages of a slow nova. Oxygen lines, permitted and forbidden, are so much stronger in RR Tel that a deficiency of O in Eta Carinae is rather strongly indicated.

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