Absolute measurements of state-to-state rotational energy transfer between CO and H-2 at interstellar temperatures
Résumé
Experimental measurements and theoretical calculations of state-to-state rate coefficients for rotational energy transfer of CO in collision with H-2 are reported at the very low temperatures prevailing in dense interstellar clouds (5-20 K). Detailed agreement between quantum state-selected experiments performed in cold supersonic flows using time-resolved infrared-vacuum-ultraviolet double-resonance spectroscopy and close-coupling quantum scattering calculations confirms the validity of the calculations for collisions between the two most abundant molecules in the interstellar medium.
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Labiad et al-2022-Absolute measurements of state-to-state rotational energy transfer between CO and.pdf (1.31 Mo)
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