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A rapid Hα change in X Persei

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Abstract

A trend of decreasing Hα emission over a period of thirty minutes is apparent in a series of spectra of X Persei taken on 31 December, 1987. This change appears to be astrophysical in origin and it indicates an anomalous state for X Persei that may be linked to its transition from a Be star to a normal B star, which occurred sometime between March 1988 and November 1990.

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Author notes

  1. M. J. Gorrod

    Present address: Derivative Product Risk Management, Merrill Lynch, Ropemaker Place, EC2Y 9LY, London, UK

Authors and Affiliations

  1. High Energy Astrophysics Group, Physics Department, The University, Southampton, UK

    M. J. Gorrod & M. J. Coe

  2. Departmento de Matematica Aplicada y Astronomia, Universidad de Valencia, Burjassot (Valencia), Spain

    J. Fabregat

  3. Haystacks Observatory, NEROC, Westford, Massachusetts, USA

    J. H. Kastner

  4. Istituto di Fisica dello Spazio Interplanetario, Frascati, Italy

    L. Spinoglio

Authors
  1. M. J. Gorrod
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  2. M. J. Coe
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  3. J. Fabregat
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  4. J. H. Kastner
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  5. L. Spinoglio
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Gorrod, M.J., Coe, M.J., Fabregat, J. et al. A rapid Hα change in X Persei. Astrophys Space Sci 208, 319–326 (1993). https://doi.org/10.1007/BF00657947

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  • DOI: https://doi.org/10.1007/BF00657947

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