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Planetary nebula with a peculiar spectrum in the ultraviolet: CN 3-1

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Abstract

We have obtained IUE ultraviolet spectra of the low-excitation planetary nebula CN 3-1. The recordings show the well-known doublet 2800 MgII and resonance line 2852 MgI as strong absorption lines. We show that these lines cannot be of interstellar origin and that they may be formed in two envelopes surrounding the main nebula: in the transition zone (doublet 2800 MgII) and in the neutral envelope (line 2852 MgI). These envelopes possess an important property: they contain dust particles, and even a moderate amount of such particles may influence the strength of the absorption lines of MgII and MgI.

The emission line 4686 HeII has no relation to the nebula CN 3-1 and belongs to its nucleus, a star of type WR. It is very probable that the nucleus of this nebula is a binary system with a WR component (T *=50 000 K), exciting the helium lines, and a star of B0 or B2 type (T *=26 000 K) exciting the nebular linesN 1+N 2 [OIII], 3727 [OII], hydrogen lines, etc.

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References

  • Golovaty, V. V.: 1987,Soviet Astron. J. 64, 724.

    Google Scholar 

  • Gurzadyan, G. A.: 1969,Planetary Nebulae, Gordon and Breach, New York.

    Google Scholar 

  • Gurzadyan, G. A.: 1977,Astrophys. Space Sci. 46, 471.

    Google Scholar 

  • Gurzadyan, G. A.: 1984,Stellar Chromospheres or Doublet 2800 Mg II in Astrophysics, Nauka, Moscow (in Russian).

    Google Scholar 

  • Gurzadyan, G. A.: 1988,Astrophys. Space Sci. 149, 343.

    Google Scholar 

  • Kaler, J. B.: 1976,Astrophys. J. Suppl. Ser. 31, 517.

    Google Scholar 

  • Kaler, J. B.: 1986,Astrophys. J. 308, 322.

    Google Scholar 

  • Lenzuni, P., Natta, A., and Panagia, N.: 1989,Astrophys. J. 345, 306.

    Google Scholar 

  • Pottasch, S. R.: 1983, in D. Flower (ed.), ‘Planetary Nebulae’,IAU Symp. 103, 391.

    Google Scholar 

  • Taylor, A. R., Gussie, G. T., and Goss, W. M.: 1989,Astrophys. J. 340, 932.

    Google Scholar 

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Author notes

  1. G. A. Gurzadyan (Visiting Professor)

    Present address: Department of Astronomy, Cornell University, Ithaca, New York, N.Y., U.S.A.

Authors and Affiliations

  1. Byurakan Astrophysical Observatory, Armenian Academy of Sciences, Armenia, U.S.S.R.

    G. A. Gurzadyan (Visiting Professor)

  2. Erevan Polytechnic Institute, Armenian SSR, U.S.S.R.

    A. G. Egikyan

  3. Department of Astronomy and National Astronomy and Ionosphere Center, Cornell University, Ithaca, New York, U.S.A.

    Yervant Terzian

Authors
  1. G. A. Gurzadyan
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  2. A. G. Egikyan
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  3. Yervant Terzian
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Gurzadyan, G.A., Egikyan, A.G. & Terzian, Y. Planetary nebula with a peculiar spectrum in the ultraviolet: CN 3-1. Astrophys Space Sci 176, 9–20 (1991). https://doi.org/10.1007/BF00643073

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  • DOI: https://doi.org/10.1007/BF00643073

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