Chemical abundances of planetary nebulae from optical recombination lines - II. Abundances derived from collisionally excited lines and optical recombination lines
Liu, Y., Liu, X.-W., Barlow, M. J., Luo, S.-G.
Published in Monthly notices of the Royal Astronomical Society (01.10.2004)
Published in Monthly notices of the Royal Astronomical Society (01.10.2004)
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Journal Article
Integrated spectrum of the planetary nebula NGC 7027
Zhang, Y., Liu, X.-W., Luo, S.-G., Péquignot, D., Barlow, M. J.
Published in Astronomy and astrophysics (Berlin) (01.10.2005)
Published in Astronomy and astrophysics (Berlin) (01.10.2005)
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Journal Article