| Zdroj: |
Cacciani, P, Ubachs, W, Hinnen, P C, Lynga, C, L'Huillier, A & Wahlstrom, C G 1998, ' Lifetime measurements of the e 1 II, v = 0 and v = 1 states of 12 C 16 O, 13 C 16 O, and 13 C 18 O ', Astrophysical Journal, vol. 499, no. 2 PART II . |
| Popis: |
In a laboratory investigation using tunable picosecond lasers in a pump-probe configuration, lifetimes of the E 1u, v = 0 and v = 1 states of CO are experimentally determined. For E 'D, v = 1, the lifetime is found to vary significantly for the isotopomers. Combining the data with existing oscillator strengths, predissociation probabilities within the range of 93.6%-98.6% result for 12C16O, 13C16O, and 13C18O in the case of the E 1u, v = I state, which is the state that predominantly influences the isotopic fractionation of CO in interstellar clouds. |
