O2- and air-broadening coefficients in the ν4 band of 12CH4 at room temperature

Furthermore, from these O2-broadening coefficients and from the N2-broadening coefficients previously measured for the same vibrational band, we have calculated air-broadening coefficients in the ν4 band of CH4. These results based on a simple atmospheric composition are compared with a few coefficients that we have measured with dry air, and with HITRAN values.