All Tables

Table 1: Comparison of IRAS and ISO-SWS fluxes, in units of 10^-12 erg cm^-2 s^-1 for NGC 6543.
Table 2: Infrared line intensities for BD+30 3639. All fluxes are in units of 10^-12 erg cm^-2 s^-1. In the last column the unreddened flux is given using E_B-V=0.34.
Table 3: Extinction for BD+30 3639. The predicted H $_{{\rm\beta }}$ fluxes have been derived using the theoretical fluxes from Hummer & Storey (1987) (see text for explanation).
Table 4: Infrared measured line intensities for NGC 6543. In the last column the dereddened and aperture corrected fluxes (Flux $^{\rm corr}$ ) are given. The E_B-V=0.07, and the aperture correction factor is 1.3 for ions measured with the smallest ISO SWS aperture (<12 $\mu$ m).
Table 5: Ultraviolet (IUE) and optical line fluxes in units of 10^-12 erg cm^-2 s^-1 for BD+30 3639. The optical lines are from Aller & Hyung (1995).
Table 6: Ultraviolet (IUE) line fluxes in units of 10^-12 erg cm^-2 s^-1 for NGC 6543. In the last column the fluxes have been corrected for interstellar extinction using E_B-V=0.07 and an aperture correction factor of 1.3 has been used.
Table 7: Optical line fluxes for NGC 6543. In Col. 8 the average fluxes from MP, M, AC and H-east are given (see Sect. 4.2 for details). All the fluxes from Cols. 3 to 8 have been corrected for extinction using $C_{{\rm H_{\beta }}}=0.2$ (as are given in the literature) and are relative to H $_{{\rm\beta }}$ . In this paper a lower extinction is found. The last column lists the average fluxes corrected for extinction using $C_{{\rm H_{\beta }}}=0.1$ ( E_B-V=0.07) and in units of 10^-12 erg cm^-2 s^-1.
Table 8: Electron density in cm^-3. For BD+30 3639 a $T_{{\rm e}}=8500$ K has been used, and for NGC 6543 $T_{{\rm e}}=8200$ K.
Table 9: Electron temperature in K. For BD+30 3639 a $N_{{\rm e}}= 11~000$ cm^-3 has been used, and for NGC 6543 $N_{{\rm e}}=5000$ cm^-3.
Table 10: Ionic concentrations and chemical abundances.
Table 11: Comparison of abundances in BD+30 3639 and NGC 6543.
Table 12: Comparison of the abundance ratios of carbon, nitrogen and oxygen.