| Abstrakt: |
The emission spectrum of the First Negative Group of ionized molecular nitrogen (N2+1NG: B2Σu+→ X2Σg+) has been photographed at high resolution in the spectral region from 3800 to 4750 Å. Lines have been identified as arising from the following bands: (0,0), (1,1); (0,1), (1,2), (2,3); (0,2), (1,3), (2,4), (3,5), (4,6), (5,7), and (6,8). The absolute accuracy of the measurements is approximately 0.01 cm−1, with relative rrecision between close lines in a given band of 0.005 cm−1. A complete line list is presented. Preliminary results of a spectral analysis are given, and the accuracy of final molecular constants is estimated. A complete analysis will be contained in a subsequent paper. |
