RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

Emission-Line Stars:Infrared Spectra
OB Stars:Line Identifications
OB Stars:Spectrophotometry

How to Cite

Fourier transform spectroscopy of four OB stars from 4800 to 10200 Å. (1976). Revista Mexicana De Astronomía Y Astrofísica, 2(1), 273-308. https://astronomia.unam.mx/journals/rmxaa/article/view/1978rmxaa...2..273j

Abstract

We have made new observations of the O-B emission line stars ζ Ori, P Cyg, ψ Per, and γ Cas using a Michelson Spectrophotometer which gave us photometrically precise spectra in the 4800-10200 A range. The spectral resolution is 3.85 cm-1. The stars P Cyg, ψ Per, and γ Cas show an unusually strong Mg II doublet (9217, 9243 A) in emission, which has not been previously reported. Our spectra show forty-two unidentified lines previously associated with nova-like and planetary nebulae spectra. Thirty-three of these lines are observed in P Cyg, and only four of these lines are present in ζ Ori. Many are due to Fe II.
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