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Photospheric Variability in EUVE Observations of β Canis Majoris (B1 II-III)

  • David H. Cohen (a1), Joseph J. MacFarlane (a1) and Joseph P. Cassinelli (a1)

Abstract

The only pulsating early-type star observed by EUVE, the β Cephei variable β CMa, displays periodic variability in its Lyman continuum which is basically consistent with the long-known optical and UV variability. The amplitude of the primary pulsation component is significantly larger in the EUV than in the optical or UV. This is consistent with a temperature change being the explanation for the variability. It is notable that the pulsations have been detected in the Lyman continuum because this part of the spectrum is formed in a much higher layer of the photosphere than either the UV or optical continua.

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References

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Beeckmans, F., & Burger, M. 1977, A&A, 61, 815
Dziembowski, W., & Pamyatnykh, A.A. 1993, MNRAS, 264, 204
Kiriakidis, M., El Eid, M.F., & Glatzel, W. 1992, MNRAS, 225, lp
Lampton, M., Margon, B., Bowyer, S. 1976, ApJ, 208, 177
Moskalik, P., & Dziembowski, W. 1992, A&A, 256, L5
Shobbrook, R.R. 1973, MNRAS, 101, 257
Stehken, C., & Jerzykiewicz, M. 1993, β Cephei stars from a photometric point of view, Space Science Reviews, 62, 95

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