NH2 TRANSITIONS OF COMETARY INTEREST IN THE NEAR-INFRARED

A new high resolution laboratory spectrum of the known <(A)over tilde (2)A(1)> - <(X)over tilde B-2(1)> electronic transition of NH2 has bee n recorded and analysed between 7030 and 8850 Angstrom by means of las er optogalvanic absorption measurements. The rotational analysis was c arried out using the published data of flashphotolysis experiments (Jo hns et al. 1976), analysis results of the emission Fourier transform s pectrum (6400-1050 Angstrom) and combination differences technique in the lower state. Because of the cometary interest of NH2, transitions characterized by low rotational quantum numbers are presented (N' less than or equal to 3, K-alpha' less than or equal to 3). Relative line intensities have also been estimated.