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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Lifetime measurements of the E (1)Pi, upsilon=0 and upsilon=1 states of (CO)-C-12-O-16, (CO)-C-13-O-16, and (CO)-C-13-O-18

Author

  • P Cacciani
  • C Lynga
  • Anne L'Huillier
  • Claes-Göran Wahlström
  • W Ubachs
  • P. C Hinnen

Summary, in English

In a laboratory investigation using tunable picosecond lasers in a pump-probe configuration, lifetimes of the E (II)-I-1, v = O and v = 1 states of CO are experimentally determined. For E (II)-I-1, 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%-98.64% result for (CO)-C-12-O-16, (CO)-C-13-O-16, and (CO)-C-13-O-18 in, the case of the E (II)-I-1, v=1 state, which is the state that predominantly influences the isotopic fractionation of CO in interstellar clouds.

Department/s

  • Atomic Physics

Publishing year

1998

Language

English

Publication/Series

Astrophysical Journal

Volume

499

Document type

Journal article

Publisher

American Astronomical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0004-637X