期刊
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
卷 96, 期 2, 页码 251-270出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2004.12.037
关键词
methane; positions; intensities; near-infrared
To provide line parameters for the near-infrared methane spectrum, 35,306 line positions and intensities at room temperature were retrieved between 6180 and 9200 cm(-1), along with 4936 lines between 4800 and 5 500 cm(-1). For this, laboratory absorption spectra were recorded at 0.010-0.022 cm(-1) resolution using the McMath-Pierce Fourier Transform Spectrometer located on Kitt Peak in Arizona. Positions were calibrated using CO transitions at 2.3 and 1.6 mu m and H2O lines at 1.9 and 1.3 mu m. The minimum line intensity included was 3.7 x 10(-26) cm(-1)/(molecule cm(-2)), and the combined sum of the intensities in these two intervals was 7.085 x 10(-20) cm(-1)/(molecule cm(-2)) at 296 (+/- 4)K. Quantum assignments from the literature were matched for 1% of the features, and a new methane database was compiled for the near-infrared. (C) 2005 Elsevier Ltd. All rights reserved.
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