Abundances in planetary nebulae: NGC 1535, NGC 6629, He2-108, and Tc1

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Table 3

UV spectrum of NGC 1535.

λ	Ion	Intensities

(Å)		¹	²	(I/Hβ)

977	C iii]	9.6	8.4	18
1175	C iii]	34	23.5	50
1548	C iv	30.8	19.3	40.7
1550	C iv	16.8	10.0	21.2
1640	He ii	95	56.4	119
1661	O iii]	1.8	1.1	2.3
1663	O iii]	6.9	4.1	8.7
1678	?	4.8	2.8	6.0
1750	N iii]	8.5	5.05	10.7
1906	C iii]	85.2	50.9	108
1909	C iii]	58.0	34.5	73
2297	C iii]	16	9.5	20
2734	He ii	3.5	1.9	4.0
2837	[Fe iv]?	1.8	1.0	2.1
3048	O iii	7.0	3.6	7.2
3134	O iii	28.0	14.2	30
3204	He ii	7.2	3.7	7.7

Notes.

⁽¹⁾

Measured intensity from in units of 10^-13 erg cm^-2 s^-1.

⁽²⁾

Intensity corrected for diaphragm size and extinction in units of 10^-12 erg cm^-2 s^-1. I/Hβ is normalized to Hβ = 100.

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