کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7846520 | 1508612 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Collisional line-shape parameters and their temperature dependence for the ν1+ν3 band of C2H2 perturbed by CO2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
طیف سنجی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
CO2-broadened line widths and CO2-pressure induced line shifts have been measured for 42 R- and P-branch transitions in the ν1+ν3 band of acetylene at seven temperatures in the range 216-333 K to obtain the temperature dependences of broadening and shift coefficients. The spectra were recorded by a 3-channel tunable diode laser spectrometer, and the traditional Voigt-profile model was employed to retrieve the line parameters with a multispectrum fitting procedure. The line-broadening and line-shifting coefficients as well as their temperature-dependence parameters have been also evaluated theoretically, in the frame of a semi-empirical approach based on analytical Anderson-type expressions and including a few-parameter correction to account for the real curved trajectories. Being validated by comparison with measurements, this approach has been used to compute extensive (0â¤Jâ¤70) R- and P-line lists which could be useful for atmospheric/astrophysical applications and spectroscopic databases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 203, December 2017, Pages 454-460
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 203, December 2017, Pages 454-460
نویسندگان
K. Esteki, A. Al Mashwood, A. Dudaryonok, J. Buldyreva, A. Predoi-Cross, N. Prakash, D. Sutherland, O. Guerrero Medina, N. Lavrentieva,