Scientific Results

Variations in the sign of the pressure-induced lineshifts in the nu(2) band of ammonia with temperature

Year: 1996

Authors: Baldacchini G., Buffa G., D’Amato F., Pelagalli F., Tarrini O.

Autors Affiliation: ENEA, Dipartimento INN, Centro Ricerche Energia Frascati, C.P. 65, 00044 Frascati, Rome, Italy; Dipartimento di Fisica, Università di Pisa, Piazza Torricelli 2, I-56126 Pisa, Italy

Abstract: The self-collisional shift of the aP(6,0) and aP(6,1) lines of the infrared v(2) ammonia band was measured as a function of temperature in the range 200-400 K. In agreement with theoretical predictions, the shift goes from negative (red shift) to positive (blue shift) with increasing temperature. Such a result must be taken into account in modelling the temperature dependence of pressure shift. Copyright (C) 1996 Elsevier Science Ltd

Journal/Review: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER

Volume: 55 (6)      Pages from: 741  to: 743

KeyWords: Pressure shift; ammonia;
DOI: 10.1016/0022-4073(95)00187-5

Citations: 11
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