Application of a VUV Fourier transform spectrometer and synchrotron radiation source to measurements of.: VI.: The ε(0,0) band of NO

The epsilon(0,0) (D (2)Sigma(+)-X (2)Pi(r)) band of NO has been recorded by using a vacuum ultraviolet Fourier transform spectrometer from Imperial College, London, with synchrotron radiation at the Photon Factory, KEK, Japan, as a continuum light source. Analysis of the epsilon(0,0) band provides accurate rotational line positions and term values as well as the photoabsorption cross sections. Molecular constants of the v=0 level of the D (2)Sigma state have been determined as T-0=53 291.10+/-0.10 cm(-1), B-0=1.991 07+/-0.000 05 cm(-1), and D-0=(6.6+/-0.1)x10(-6) cm(-1). Accurate rotational line strengths have also been obtained and the sum of the line strengths for all rotational lines is determined as 2.18x10(-15) cm(2) cm(-1). The band oscillator strength of the epsilon(0,0) band is determined to be (2.47+/-0.12)x10(-3). (C) 2003 American Institute of Physics.