Echelle measurements of the electron temperature of the giant halo of the planetary nebula NGC 6543

@inproceedings{Meaburn1991EchelleMO,
  title={Echelle measurements of the electron temperature of the giant halo of the planetary nebula NGC 6543},
  author={J. E. Meaburn and Richard Nicholson and Myfanwy Bryce and John Edward Dyson and Jeremy R. Walsh},
  year={1991}
}
Observations with the Manchester echelle spectrometer, of spatially resolved profiles of the Hα, [NII] and [OIII] lines from a bright knot in the halo of NGC 6543 yield an electron temperature of T e =8860±1000 K. This seemingly contradicts a previous measurement of T e =14700±850 K from the [OIII] (5007A/4363A) line intensity ratio for exactly the same area of the halo which is 6000 K higher than that given for the nebular core by the same line ratio method. A model in which flows of mass… CONTINUE READING

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