Table 2: Electron temperatures calculated using data from the literature.

Ratio	(K)	Ref./Region	Ratio	(K)	Ref./Region
[O III]
99.8	12 875	[1]	105.1	12 625	[2]
107.4	12 519	[3]	110.9	12 370	[4] NW
117.9	12 091	[4] SE	96.6	13 044	[5] I
96.7	13 040	[5] II	90.1	13 520	[6] 1-1c
92.6	13 263	[6] 1-2b	130.3	11 665	[6] 2-1c
113.3	12 245	[6] 2-2b	85.7	13 689	[7] 1
92.4	13 279	[7] 2	108.7	12 464	[7] 3
98.5	12 942	[7] 4	87.2	13 590	[7] 5
114.6	12 220	[7] 11	113.2	12 275	[7] 12
111.1	12 363	[7] 13	108.0	12 492	[7] 14
105.5	12 606	[7] 15	99.1	12 916	[7] 16
95.3	13 113	[7] 17	89.1	13 472	[7] 18
108.2	12 487	[8]
[N II]
52.22	13 510	[8]
[O II]
40.8	11 627	[5] I	35.5	12 747	[5] II
43.0	11 707	[7] 1	45.6	11 305	[7] 2
35.4	13 324	[7] 3	35.7	13 262	[7] 4
45.8	11 263	[7] 5	51.8	10 501	[7] 11
41.5	11 974	[7] 12	37.7	12 768	[7] 13
34.0	13 731	[7] 14	24.9	17 902	[7] 15
32.7	14 125	[7] 16	42.6	11 773	[7] 17
33.7	13 813	[7] 18	36.7	12 459	[8]
[S II]
15.2	8 613	[7] 12	15.5	8 525	[7] 13
14.0	9 110	[7] 17	10.8	10 792	[8]

References: [1] Aller & Faulkner (1962); [2] Dickel et al. (1964); [3] Dufour (1975); [4] Dufour & Harlow (1977); [5] Peimbert & Torres-Peimbert (1976); [6] Pagel et al. (1978); [7] Peimbert et al. (2000); [8] Tsamis et al. (2003).

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