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Active Phases on II Peg

  • Contributed Papers on Active Binary Stars
  • Conference paper
  • First Online:
Cool Stars, Stellar Systems, and the Sun

Part of the book series: Lecture Notes in Physics ((LNP,volume 291))

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Abstract

Analysis of HE data for 1981, 1983 and 1985 II Peg show evidence of a long-lived plage region in Mg II k, C IV and He II. This UV enhancement is in anti-correlation with the maximum spot visibility and would imply a hot plage region overlying the cool photospheric spot. The optical spot migration rate from late 1981 to early 1986 was only 0.03 rotations per year.

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References

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Authors and Affiliations

  1. Armagh Observatory, BT61 9DG, Armagh, N. Ireland

    P. Panagi & J. G. Doyle

Authors
  1. P. Panagi
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  2. J. G. Doyle
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Editor information

Jeffrey L. Linsky Robert E. Stencel

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© 1987 Springer-Verlag

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Panagi, P., Doyle, J.G. (1987). Active Phases on II Peg. In: Linsky, J.L., Stencel, R.E. (eds) Cool Stars, Stellar Systems, and the Sun. Lecture Notes in Physics, vol 291. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-18653-0_180

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  • DOI: https://doi.org/10.1007/3-540-18653-0_180

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-18653-3

  • Online ISBN: 978-3-540-48041-9

  • eBook Packages: Springer Book Archive

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