Spectrophotometric studies of star HD 157978 |
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| Authors: | M A Hamdy S Abou Elazm |
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| Institution: | 1. Helwan Observatory, Cairo, Egypt
2. King Abdulaziz Univ., Ieddah, Saudi Arabia
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| Abstract: | Examination of the stellar spectrum of this star reveals that it has a composite spectrum. It could be classified as (A7V+G5V). It contains three forbidden Feii] lines which are of the essential features of η Carinae stars. The spectrum also contains H, Hei, Feii, Mni, Tiii, and other different lines. The K-line seems to be sharp double line while other lines appear single ones which suggest early component may be double. This also seems to be true according to radial velocity measurements. |
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