Electron temperatures and densities of planetary nebulae determined from the nebular hydrogen recombination spectrum and temperature and density variations

Zhang, Y; Liu, XW; Wesson, R; Storey, PJ; Liu, Y; Danziger, IJ; (2004) Electron temperatures and densities of planetary nebulae determined from the nebular hydrogen recombination spectrum and temperature and density variations. Monthly Notices of the Royal Astronomical Society , 351 (3) pp. 935-955. 10.1111/j.1365-2966.2004.07838.x .

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