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Table 1

Differences between the luminosities of the Hnα lines calculated using the current model and the Case B model for a uniform spherical UC H II region with various Te, ne, and EM.

Te = 6000 K ne = 104 cm–3 ne = 5 × 104 cm–3 ne = 105 cm–3 ne = 5 × 105 cm–3
EM (cm–6 pc) H30α H35α H40α H30α H35α H40α H30α H35α H40α H30α H35α H40α
2 × 107 0.23% 0.23% 0.21% 0.17% 0.15% 0.12% 0.14% 0.11% 0.08% 0.07% 0.05% 0.03%
108 0.16% 0.09% 0.01% 0.12% 0.10% 0.09% 0.11% 0.09% 0.06% 0.07% 0.04% 0.02%
2 × 108 … … … 0.05% 0.04% 0.09% 0.06% 0.08% 0.06% 0.06% 0.04% 0.01%
109 … … … –1.03% –0.91% 2.04% –0.48% 0.36% 1.42% 0.11% 0.1% –0.05%
2 × 109 … … … … … … … … … 0.48% 0.60% 0.10%
Te = 10 000 K ne = 104 cm–3 ne = 5 × 104 cm–3 ne = 105 cm–3 ne = 5 × 105 cm–3
EM (cm–6 pc) H30α H35α H40α H30α H35α H40α H30α H35α H40α H30α H35α H40α
2 × 107 0.22% 0.22% 0.21% 0.16% 0.15% 0.12% 0.13% 0.11% 0.08% 0.07% 0.05% 0.03%
108 0.19% 0.16% 0.12% 0.14% 0.12% 0.09% 0.12% 0.10% 0.07% 0.07% 0.04% 0.02%
2 × 108 … … … 0.11% 0.09% 0.07% 0.10% 0.08% 0.05% 0.06% 0.04% 0.02%
109 … … … –0.15% –0.16% 0.19% –0.05% 0.04% 0.14% 0.05% 0.03% –0.02%
2 × 109 … … … … … … … … … 0.06% 0.05% –0.02%

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