NASA NTRS · 19810017384
Line strength variations in beta Cephei
Abstract
The line strength variations of the resonance line of C IV (1550A, 2s 2S - 2P) observed by OAO-2 were confirmed by IUE observations. In addition, the NV resonance line (1204A, 2s 2S - 2P), the Si III line (1206A, 3p 1P-1D, multiplet 11) and the Si IV resonance line (1395A, 3s 2S - 2P) all vary in line strength essentially in phase with the C IV variation. The (preliminary) period of the variation is 6.02/12.04 days.
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Fischel, D., Sparks, W. M.. 1981-01-01. Line strength variations in beta Cephei. https://ntrs.nasa.gov/citations/19810017384
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