Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..91...63f&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 91, no. 1, March 1983, p. 63-69.
Astronomy and Astrophysics
Astrophysics
1
Abundance, Spectral Energy Distribution, Stellar Color, Stellar Spectra, Stellar Spectrophotometry, Symbiotic Stars, Emission Spectra, Helium, Hydrogen, Line Spectra, Spectrum Analysis
Scientific paper
Reticon spectroscopic observations of the yellow symbiotic star AG Draconis are reported. Small rapid (15-30 min) changes in the intensities of the He I λ5015 Å and He I λ6678 Å singlet lines, and of the Hγ line are observed. The first observational evidence of presence of the unidentified band at 7088 Å in this star is also reported.
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