Modeling dust emission in PN IC 418 | Astronomy & Astrophysics (A&A)

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Table 1

Properties of the H⁺ region and the PDR.

	H⁺ region	PDR
Volume [10⁵¹ cm³]	5.1	1.5
Inner radius [10¹⁷ cm]	0.115	1.085^a
Outer radius [10¹⁷ cm]	1.068^a	1.178
Filling factor	1.00	0.10
H-Mass [M_⊙]	0.047	0.040
D/G by mass [10⁻⁴]	5.56	34.1
[cm⁻³]	1.1 × 10⁴	3.0 × 10⁵
[K]	9031	462

Notes. ^(a) The transition region between the outer radius of the H⁺ region and the inner radius of the PDR only contributes to 0.1% of the total H-mass and is not considered in this table.

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