Perturber m m_a(Da) m_p(Da) d_a(pm) d_p(pm) HWHH(cm-1 atm-1)_296K T_min(K) ZnS 4 99.90 95.90 570 570 0.0961 * 95 Ar 10 99.90 39.96 570 333 0.0493 * 107 CH4 10 99.90 16.03 570 380 0.0785 * 115 CO 4 99.90 27.99 570 376 0.0990 * 97 CO2 6 99.90 43.99 570 330 0.0569 * 138 H2 6 99.90 2.02 570 292 0.2051 * 58 H2O 4 99.90 18.01 570 265 0.0923 * 148 He 10 99.90 4.00 570 258 0.1130 * 31 N2 6 99.90 28.01 570 368 0.0730 * 90 NH3 4 99.90 17.03 570 260 0.0934 * 132 NO 4 99.90 30.00 570 317 0.0847 * 111 O2 6 99.90 31.99 570 346 0.0661 * 102