EMISSION LINES IN THE SPECTRA OF THE RV TAURI STARS U MONOCEROTIS AND AC HERCULIS

EMISSION LINES IN THE SPECTRA OF THE RV TAURI STARS U MONOCEROTIS AND AC HERCULIS

Strong metallic emission lines have been observed in the spectra of the RV Tauri stars U Mon and AC Her near recent light minima. While these two variables differ in a number of significant respects, the metallic emission spectra are quite similar, resembling the emission that we have previously rep...

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Veröffentlicht in:Publications of the Astronomical Society of the Pacific 1984-06, Vol.96 (580), p.432-436
1. Verfasser: BOPP, BERNARD W.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectra
Astrophysics
Emission spectra
Light curves
Line spectra
Radial velocity
RV Tauri variables
Spectroscopy
Stellar spectra
Visible spectrum
Wavelengths
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Zusammenfassung:Strong metallic emission lines have been observed in the spectra of the RV Tauri stars U Mon and AC Her near recent light minima. While these two variables differ in a number of significant respects, the metallic emission spectra are quite similar, resembling the emission that we have previously reported as present in the spectrum of R Sct at a deep minimum. The data appear to support Baird's shock-wave model for the spectral behavior of RV Tauri stars.
ISSN:0004-6280
1538-3873
DOI:10.1086/131359