Knowledge Bank

New high resolution absorption spectrograms of the nitrogen molecule have been obtained from $1250\backslash AA$ employing path lengths of up to 20 meter-atomspheres. The following systems have been identified: (1) $A3\Sigma u+\leftarrow X1\Sigma g+(v\prime =6.7,8.9);(2)B3\Pi g\leftarrow X1\Sigma g+(v\prime =0.1):(3)B13\Sigma n-\leftarrow X1\Sigma g+(v\prime =0$ to 9); (4) a to 8); and $a\prime \Pi g\leftarrow X\prime \Sigma g+(v\prime =0$ to 6). The detailed analyses of these systems will be discussed.