Resolution of the C IV plus Fe III blend at 1550 A. I - The predominance of Fe III in B1-B2 giant stars

Details Resolution of the C IV plus Fe III blend at 1550 A. I - The predominance of Fe III in B1-B2 giant stars Resolution of the C IV plus Fe III blend at 1550 A. I - The predominance of Fe III in B1-B2 giant stars

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....52..161s&link_type=abstract

Astronomy and Astrophysics, vol. 52, no. 1, Oct. 1976, p. 161-163.

Astronomy and Astrophysics

Astrophysics

3

B Stars, Carbon Stars, Giant Stars, Metallic Stars, Ultraviolet Spectra, Astrophysics, Spectral Resolution, Stellar Spectrophotometry

Scientific paper

The nature of the strong and broad absorption feature centered around 1550 A in low-resolution spectrophotometric tracings of B-type giant stars is investigated using Copernicus scans of Beta CMa (B1 II), Beta Cen (B1 III), and Gamma Ori (B2 III) in the wavelength range from 1520 to 1620 A. It is shown that the 1550-A feature is due to a blend of Fe III lines and does not involve any C IV lines.

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