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首页> 外文期刊>The Astrophysical journal >ROTATIONAL AND VIBRATIONAL EXCITATION OF CO MOLECULES BY COLLISIONS WITH ~4He ATOMS
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ROTATIONAL AND VIBRATIONAL EXCITATION OF CO MOLECULES BY COLLISIONS WITH ~4He ATOMS

机译：〜4He原子碰撞对CO分子的旋转和振动激发

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摘要

Full close-coupled calculations are carried out of the cross sections for energy transfer between rotational levels of carbon monoxide in collision with ~4He atoms with energies between 5 and 600 cm~(-1). At low energies, the cross sections are dominated by contributions from shape resonances. The calculated cross sections are in satisfactory agreement with the experimental data measured at an energy of 570 cm~(-1). Calculations using the infinite order sudden approximation are carried out of cross sections for energy transfer between vibrational levels of CO. Vibrational energy transfer is dominated by transitions in which the vibrational quantum number changes by unity.
机译：对与〜4He原子碰撞且能量在5至600 cm〜（-1）之间的一氧化碳的旋转能级之间的能量转移的截面进行了全封闭耦合计算。在低能量下，横截面主要受形状共振的影响。计算得到的横截面与在570 cm〜（-1）的能量下测得的实验数据令人满意。使用无限阶跃近似来计算横截面，以在CO的振动能级之间进行能量传递。振动能传递受跃迁控制，在跃迁中，振动量子数一致地变化。

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