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Rapid simultaneous observations of Feii and Balmer emission lines of X Oph

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Abstract

Sudden brightening of FeII and Balmer (Hβ and Hα) lines of X Oph was observed on 28–29 May, 1986. Equivalent width of FeII and Hβ lines increased by a factor of two and that for Hα line by a factor of four, during the brigtening phase of the star. This brightening phenomena has been explained in the framework of ‘Coronal Radiative Instability’.

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Authors and Affiliations

  1. Vainu Bappu Observatory, Indian Institute of Astrophysics, Kavalur, Alangayam, North Arcot, Tamil Nadu, India

    K. K. Ghosh & K. Jayakumar

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  1. K. K. Ghosh
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  2. K. Jayakumar
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Ghosh, K.K., Jayakumar, K. Rapid simultaneous observations of Feii and Balmer emission lines of X Oph. Astrophys Space Sci 141, 293–301 (1988). https://doi.org/10.1007/BF00639496

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  • DOI: https://doi.org/10.1007/BF00639496

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