천문학회지 (Journal of The Korean Astronomical Society)

  • 제42권4호
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  • Pages.93-103
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  • 2009
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  • 1225-4614(pISSN)
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  • 2288-890X(eISSN)
한국천문학회 (The Korean Astronomical Society)
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SPECTRAL FEATURES OF THE SYMBIOTIC VARIABLE STAR CH CYGNI IN 2005 - 2006

  • Yoo, Kye-Hwa (Department of Science Education, Ewha Womans University) ;
  • Yoon, Tae-Seog (Department of Astronomy and Atmospheric Sciences, Kyungpook National University)
  • 발행 : 2009.08.31
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초록

This article reports the spectral behavior of CH Cygni, using data obtained in October 2005 and June 2006. In these epochs, CH Cygni showed emission lines of H I, Fe II, [Fe II], [O III], [N II], [Ne III] and [S II]. Many of these lines were more enhanced since 2004. The underlying M-type spectrum was removed to get the intrinsic emission profile, and the resulting profiles were deconvoluted into several Gaussian components. Also, the radial velocities for all the lines that appeared in these spectra of CH Cygni were measured. The resultant lines were compared with each other and with those obtained in 2004; the findings are explained in terms of an accretion disk and jets.

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참고문헌

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피인용 문헌

  1. Recent photometry of symbiotic stars vol.333, pp.3, 2012, https://doi.org/10.1002/asna.201111655