Table 1: Central star temperatures and nebular parameters. Chemical abundances are expressed in $12+\log~(X$/H). The line fluxes $F_{\rm H\alpha }$ and $F_{\rm [OIII]}$ as observed by M 00. The adopted reddening correction is E(B-V)=0.07 (van den Bergh 2000).
Id d $F_{\rm H\alpha }$ $F_{\rm [OIII]}$ $T_{\star }$ log ($L_{\star}$/$L_{\odot}$) log (r) log ($N_{\rm e}$) He/H  N/H  O/H S/H Ar/H N/O
M 00 arcmin 10-15 erg/cm2 s K/1000   cm  cm-3            
8 22 11.4 10.1 74 b 3.8 16 <r<18 d 3.1 11.05 7.07 7.94 6.38 6.11 -0.87
18 13 3.0 14.2 100 b 4.1 16 <r<17.9 d 2.5 11.09 7.48 8.20 6.83 6.51 -0.72
28 12 2.9 13.9 142 a 3.7 16 <r<17.7 d 2.1 10.96 6.98 8.69 6.47 6.3 -1.71
60 13 1.4 3.4 160 a 3.1 17 c 2.9 11.04 7.67 8.69 6.57 6.31 -1.02
65 8 10.1 5.6 128 b 3.2 16 <r<17.7 d 3.2 11.16 7.61 8.67 6.84 6.63 -1.06
75 11 4.4 12.5  96 b 3.5 16 <r<17 d 3.9 11.14 8.03 8.49 6.81 6.41 -0.46
91 18 4.9 16.3 110 a 3.6 17.0 c 3.6 11.31 8.07 8.48 6.60 6.18 -0.41
93 16 3.1 7.4  96 a 3.3 17.2 c 3.7 10.93 7.75 8.47 6.66 6.09 -0.72
96 9 3.1 11.9 105 b 3.5 16< r <17.9 d 1.9 11.06 7.43 8.76 6.44 6.33 -1.33
101 14 4.1 11.4  97 b 3.4 17 c 2.5 11.07 7.33 8.72 6.18 6.27 -1.56
125 9 7.5 8.2  86 b 3.6 16< r <17.9 d 2.2 10.93 7.53 8.31 6.66 6.14 -0.78
M 33 PNe all (1)         11.08 7.65 8.54 6.62 6.33 -0.89
M 33 PNe with $T_{\star }$ measured (1)         11.09 7.78 8.61 6.60 6.28 -0.83
M 33 H  II regions (2)         10.92 7.34 8.55 6.95 - -1.21
Galactic PNe non-type I (3)         11.05 8.14 8.69 6.91 6.38 -0.55
Galactic PNe type I (3)         11.12 8.72 8.65 6.91 6.42 +0.07
Galactic H  II regions (4)         11.00 7.57 8.70 7.06 6.42 -1.13
LMC PNe non-type I (5)         10.96 7.46 8.35 6.81 5.95 -0.90
LMC PNe type I (5)         10.95 8.28 8.24 7.11 6.12 +0.02
LMC H  II regions (6)         10.97 6.97 8.38 6.67 6.92 -1.41
(1) Present paper (average, by number, not by $\log$).
(2) Vílchez et al. (1988).
(3) KB 94.
(4) Dufour (1984).
(5) Leisy & Dennefeld (2004).
(6) Dennefeld (1989).

Source LaTeX | All tables | In the text