Abundances in the planetary nebula NGC 6210 | Astronomy & Astrophysics (A&A)

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Table 7:

Ionic concentrations and chemical abundances in NGC 6210.
Ion	$\lambda$	I/H $\beta$	$N_{{\rm ion}}$ / $N_{{\rm p}}$	ICF	$N_{{\rm el.}}$ / $N_{{\rm p}}$
He⁺	5875	13.7	0.091
He⁺⁺	4686	1.5	0.0013	1.0	0.092
C⁺	2324	1.54	4.4(-6)
C⁺⁺	1909	25.2	1.03(-4)	1.1	1.2(-4)
N⁺	6584	18.7	4.3(-6)
N⁺⁺	1750	2.7	5.58(-5)
N⁺⁺	57.3	15.0	6.50(-5)	1.0	7.0(-5)
O⁺	3727	25.0	2.8(-5)
O⁺⁺	5007	1060	4.64(-4)
O⁺⁺	1663	5.05	4.1(-4)
O⁺⁺	51.8	151	4.5(-4)
O⁺³	25.8	7.1	2.36(-6)	1.0	4.9(-4)
Ne⁺	12.8	4.55	7.25(-6)
Ne⁺⁺	15.5	169	1.12(-4)
Ne⁺⁺	3869	86.7	1.09(-4)	1.0	1.2(-4)
S⁺	6731	3.2	2.45(-7)
S⁺⁺	18.7	25.7	2.76(-6)
S⁺⁺	6312	1.09	3.03(-6)
S⁺³	10.5	152	4.39(-6)	1.0	7.4(-6)
Ar⁺	6.98	0.76	9.2(-8)
Ar⁺⁺	8.99	14.7	1.52(-6)
Ar⁺⁺	21.8	0.72	1.2(-6)
Ar⁺⁺	7135	10.7	1.12(-6)
Ar⁺³	4740	1.53	5.35(-7)
Ar⁺³	7237	0.088	2.0(-6):	1.0	2.3(-6)
Cl⁺	14.3	0.043	1.0(-8)
Cl⁺⁺	5538	0.469	7.59(-8)
Cl⁺³	11.7	0.82	4.97(-8)
Cl⁺³	20.3	0.45	3.25(-8)
Cl⁺³	7530	0.224	5.5(-8)	1.0	1.4(-7)
Fe⁺⁺	22.9	2.9	9.7(-8)		:
Fe⁺³	2836	0.83	4.3(-7)	1.2	6.0(-7)
Si⁺	34.8	0.30	1.8(-7)
Si⁺⁺	1888	1.71	1.37(-6)	2.2	3.4(-6)
P⁺⁺	17.9	0.21	4.5(-8):	2.2:	1.0(-7):
Na⁺⁺	7.31	0.47	3.75(-7)	2:	7.5(-7):
K⁺³	5.98	0.21:	1.14(-8)
K⁺³	6794	0.026	1.18(-8)	2:	2.4(-8)
C⁺⁺	4267	0.34	3.2(-4)
Mg⁺⁺	4481	0.020	1.9(-5)	1.1:	2.0(-5)

Intensities given with respect to H $\beta$ = 100.
: Indicates uncertain value.
Wavelengths in Angstrom for all values of $\lambda$ above 1000, otherwise in $\mu$ m.

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