Abundances in planetary nebulae: NGC 2792 | Astronomy & Astrophysics (A&A)

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Table 4:

Electron density indicators in NGC 2792.
Ion	Ioniz.	Lines	Observed	$N_{\rm e}$
	Pot.(eV)	Used	Ratio	(cm^-3)
[S II]	10.4	6731/6716	1.7:	4500:
	23.3	33.5/18.7	0.50	2300
	23.8	5538/5518	0.9:	1500:
	40.7	4740/4711	0.88	1500
	59.8	13.1/7.90	1.35	4100
	97.1	24.3/14.3	0.70	3000

(:) Indicates uncertain values.

Source LaTeX | All tables | In the text

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