The [NII] Line Ratio The ISO 122 m [NII] to SPIFI 205 m line ratio yields the density of the low ionization gas (Figure 5, blue line and circle)
![The [NII] Line Ratio The ISO 122 m [NII] to SPIFI 205 m line ratio yields the density of the low ionization gas (Figure 5, blue line and circle)](https://static.fdocuments.us/doc/330x215/56649f465503460f94c68b56/the-nii-line-ratio-the-iso-122-m-nii-to-spifi-205-m-line-ratio.jpg)
