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Table 4.

Fitted parameters for the spectra of the giant H II regions in M 101. The spectra are measured in areas with a 30″ diameter.

Internal model External model


Region η EM [pc cm−6] η EM [pc cm−6]
Centre −0.528 ± 0.044 5200 ± 5200 −0.528 ± 0.043 2500 ± 2200
NGC 5447 −0.344 ± 0.035 200 ± 3300 −0.343 ± 0.039 0 ± 1800
NGC 5455 −0.393 ± 0.041 6700 ± 6100 −0.392 ± 0.040 3200 ± 2600
NGC 5461 −0.236 ± 0.036 6600 ± 4100 −0.235 ± 0.035 3000 ± 1700
NGC 5462 −0.428 ± 0.041 4800 ± 4600 −0.429 ± 0.040 2300 ± 2000
NGC 5471 −0.431 ± 0.036 12300 ± 5300 −0.424 ± 0.034 4900 ± 1800

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