کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5429812 | 1397371 | 2010 | 14 صفحه PDF | دانلود رایگان |
Self- and N2-broadening coefficients of H2CO have been retrieved in both the 3.5 and 5.7-μm spectral regions. These coefficients have been measured in FT spectra for transitions with various J (from 0 to 25) and K values (from 0 to 10), showing a clear dependence with both rotational quantum numbers J and K. First, an empirical model is presented to reproduce the rotational dependence of the measured self- and N2-broadening coefficients. Then, calculations of N2-broadening of H2CO were made for some for 3296 ν2 transitions using the semi-classical Robert-Bonamy formalism. These calculations have been done for various temperatures in order to obtain the temperature dependence of the line widths. Finally, self- and N2-broadening coefficients, as well as temperature dependence of the N2-widths has been generated to complete the whole HITRAN 2008 version of formaldehyde (available as supplementary materials).
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 111, Issue 9, June 2010, Pages 1209-1222