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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

Cacciani, P ; Lynga, C ; L'Huillier, Anne LU orcid ; Wahlström, Claes-Göran LU ; Ubachs, W and Hinnen, P. C (1998) In Astrophysical Journal 499.
Abstract
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.
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Astrophysical Journal
volume
499
publisher
American Astronomical Society
ISSN
0004-637X
DOI
10.1086/311378
language
English
LU publication?
yes
id
bf128530-1b48-4cbd-a70c-2d3a7d45eecf (old id 2257692)
date added to LUP
2016-04-04 09:42:26
date last changed
2021-09-27 06:21:45
@article{bf128530-1b48-4cbd-a70c-2d3a7d45eecf,
  abstract     = {{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.}},
  author       = {{Cacciani, P and Lynga, C and L'Huillier, Anne and Wahlström, Claes-Göran and Ubachs, W and Hinnen, P. C}},
  issn         = {{0004-637X}},
  language     = {{eng}},
  publisher    = {{American Astronomical Society}},
  series       = {{Astrophysical Journal}},
  title        = {{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}},
  url          = {{https://lup.lub.lu.se/search/files/5395919/2297097.pdf}},
  doi          = {{10.1086/311378}},
  volume       = {{499}},
  year         = {{1998}},
}