Abstract
Abstract Absolute optical oscillator strength (OOS) plays an extremely important role in molecular astrophysics research, especially for hydrogen. In this work, a novel dipole (γ, γ) method is used to determine the absolute OOSs for the Lyman and Werner bands of H2 with a high energy resolution of 25 meV. A detailed comparison between the obtained results and earlier experimental and theoretical data is presented, and great agreement between the present work and the calculated results is achieved by taking the non-adiabatic effect into account. The total integrated OOSs are also obtained and discussed. The absolute OOSs for the Lyman and Werner bands of H2 reported in this work can serve as a benchmark to test various theoretical methods and can be applied in molecular astrophysics.
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