Knowledge Bank

Absorption features at $\lambda =824,815$, and 810\AA are identified as the 5f, 6f, and 7f complexes in molecular nitrogen. Our study of the 7f complex at 810\AA shows that the main lines are separated by $4B(B\aleph 2cm-1)$ rather than 2B and can be labeled as members of the O and the S branches. Theoretical analysis in terms of the frame transformation $theory1$ yields line positions and strengths similar to the $L$ complex $theory.2$ Generally excellent agreement is found between theory and experiment. This work was supported by the Air Force under AFGL Contract #F19628-81-K-0007. $\mathrm{<mrow\; data-mjx-texclass="ORD">1</mrow>}$E.S. Chang and U. Fano, Phys. Rev. A 6. 173 (1972) $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}$Ch. Jungen and E. Miescher, Can. J. Phys. 47, 1769 (1969).