本文利用最近建立的能精确求解双原子分子P线系发射光谱的物理新公式,研究了NbN分子从电子态d~1∑~＋向b~1∑~＋电子态跃迁中（1,1）跃迁带的P支发射光谱.获得的计算结果不仅很好地重现了已知低转动态的实验谱线数据,同时也预言了该跃迁带包含转动量子数J=80在内的高振转激发态的精确P线系发射光谱.该方法在理论上为实验技术难以精确测量的双原子分子体系提供了一种获得精确的高激发态谱线数据的物理新方法.从而可以为那些需要NbN分子高激发态跃迁谱线的研究工作提供必要的数据.%The accurate P-branch spectral lines of high-lying rotational quantum states of（1,1） band in d~1∑~＋—b~1∑~＋ electronic state transition of NbN molecule are obtained in this work using the analytical formula proposed in Sun＇s previous work.The formula not only reproduces all known experimental spectral lines excellently,but also generates the correct values of the unknown spectral lines up to J = 80 that are unavailable experimentally for this band.
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