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Table 7

Kolmogorov-Smirnov (K-S) and Wilcoxon (W) statistical tests for bulge PNe (OC vs. DC) and disc PNe (OC vs. DC, OC vs. CC, and DC vs. CC) (see text for more details).

Bulge Disc Disc Disc
Parameter/element OC vs. DC OC vs. DC OC vs. CC DC vs. CC
K-S/W K-S/W K-S/W K-S/W
C 0.01/0.01
log Ne 0.11/0.10 0.01/ 0.05 0.21/0.12 0.70/0.87
log Te (O III) 0.22/0.30 0.01/0.01 0.98/0.88 0.01/0.00
log Te (N II) 0.00/0.00 0.60/0.43 0.83/0.60 0.80/0.49
O++/(O++O++) 0.01/0.00 0.38/0.31 0.40/0.59 0.77/0.67
He++/(He++He++)* 0.32/0.00 1.00/0.00 0.90/0.01 0.96/0.00
log  ϵ(He) 0.01/0.01 0.00/0.00 0.45/0.49 0.82/0.02
log  ϵ(O) 0.66/0.86 0.17/0.31 0.50/0.72 0.00/0.00
log  ϵ(Ar) 0.00/0.00 0.00/0.00 0.43/0.52 0.00/0.00
log  ϵ(Ne) 0.04/0.02 0.67/0.65 0.43/0.24 0.04/0.03
log  ϵ(S) 0.03/0.01 0.00/0.00 0.17/0.08 0.00/0.00
log  ϵ(N) 0.00/0.00 0.00/0.00 0.92/0.87 0.00/0.00
log  ϵ(Cl) 0.38/0.11 0.21/0.13 0.54/0.39 0.01/ 0.02
log (S/O) 0.00/0.00 0.01/0.01 0.01/0.00 0.00/0.00
log (Ne/O) 0.00/0.00 0.55/0.53 0.00/0.00 0.00/0.00
log (Ar/O) 0.01/0.00 0.00/0.00 0.33/0.28 0.00/0.00
log (Cl/O) 0.81/0.39 0.72/0.41 0.98/0.87 0.51/0.24
log (N/O) 0.00/0.00 0.00/0.00 0.24/0.53 0.00/0.00
log (N/Ar) 0.00/0.00 0.18/0.28 0.70/0.38 0.16/0.04
log (N/Ne) 0.04/0.04 0.02/0.01 0.03/0.11 0.20/0.09
log (N/S) 0.62/0.37 0.00/0.00 0.00/0.01 0.43/0.74
log (N/Cl) 0.00/0.00 0.01/ 0.08 0.13/0.27 0.21/0.21
log (Ne/Ar) 0.96/0.87 0.00/0.00 0.00/0.01 0.85/0.50
log (S/Ne) 0.81/0.59 0.02/0.01 0.95/0.71 0.05/0.01
log (S/Ar) 0.76/0.65 0.09/0.02 0.00/0.00 0.04/0.00

Notes.

(*)

Results of Wilcoxon test are not reliable in this case.

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