Rapid simultaneous observations of Fe II and Balmer emission lines of X OPH

Details Rapid simultaneous observations of Fe II and Balmer emission lines of X OPH Rapid simultaneous observations of Fe II and Balmer emission lines of X OPH

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.141..293g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 141, no. 2, Feb. 1988, p. 293-301.

Astronomy and Astrophysics

Astrophysics

Balmer Series, Early Stars, H Alpha Line, H Beta Line, Stellar Spectra, B Stars, Iron, O Stars, Stellar Atmospheres

Scientific paper

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

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