University of Illinois Urbana-Champaign

High precision spectrum of the second overtone of 12C16O

Liu, An-Wen

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1152380.pptx
3140.pdf

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https://hdl.handle.net/2142/100556

Description

Title
High precision spectrum of the second overtone of 12C16O
Author(s)
Liu, An-Wen
Contributor(s)
  • Hu, Shui-Ming
  • Sun, Yu Robert
  • Wang, Jin
Issue Date
2018-06-22
Keyword(s)
Fundamental interest
Date of Ingest
  • 2018-08-17T16:09:10Z
  • 2018-12-12T22:36:21Z
Abstract
CO is the second most abundant molecule in the universe. Precise spectrum of the carbon monoxide molecule is great importance in astrophysical observation and in the test of the quantum chemistry model. Thirty-nine ro-vibrational transitions of 12C 16O in the second overtone band were measured by a comb-locked cavity ring-down spectrometer. The line positions were determined with kHz accuracy, or relatively 10−12 level, which is over two orders of magnitude more accurate than previous Doppler-limited studies. Comparisons of the line positions determined in this work with literature experimental values and the calculations by the Dunham-Watson model are given. The bond length in the second overtone vibrational state was determined for carbon monoixde. The calculated pure rotational line positions agree with the experimental values recorded by lamb-dip spectrometer within the experimental uncertainties.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/100556
DOI
10.15278/isms.2018.FD02
Copyright and License Information
Copyright 2018 An-Wen Liu

Owning Collections

Abstracts & Presentations - 2018 International Symposium on Molecular Spectroscopy PRIMARY