On the 1893 Absorption-Line Spectrum of Eta Carinae

On the 1893 Absorption-Line Spectrum of Eta Carinae

It is suggested that several features present in the 1893 absorption-line spectrum of Eta Carinae may be due to high-excitation lines of neutral carbon not seen in the spectra of stars of normal chemical composition. This perhaps implies a relationship of this unique southern variable to the stars o...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1993-06, Vol.105 (688), p.578-578
1. Verfasser: Bidelman, William P.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Astronomy
Carbon
Earth, ocean, space
Emission spectra
Exact sciences and technology
Hydrogen
Line spectra
R Coronae Borealis variables
Spectral bands
Stars
Stellar spectra
Stellar spectral lines
Unusual and peculiar variables
Variable and peculiar stars (including novae)
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Beschreibung
Zusammenfassung:It is suggested that several features present in the 1893 absorption-line spectrum of Eta Carinae may be due to high-excitation lines of neutral carbon not seen in the spectra of stars of normal chemical composition. This perhaps implies a relationship of this unique southern variable to the stars of the R Coronae Borealis type.
ISSN:0004-6280
1538-3873
DOI:10.1086/133197