Perturber m m_a(Da) m_p(Da) d_a(pm) d_p(pm) LW(cm-1 atm-1)_296K T_min(K) SiC 4 40.10 40.10 488.28 488.28 0.1102 53 Ar 10 40.10 39.95 488.28 333.00 0.0487 80 CH4 10 40.10 16.05 488.28 380.00 0.0720 86 CO 4 40.10 28.01 488.28 376.00 0.0951 73 CO2 6 40.10 44.01 488.28 330.00 0.0567 103 H2 6 40.10 2.02 488.28 292.00 0.1703 43 H2O 4 40.10 18.02 488.28 265.00 0.0832 110 He 10 40.10 4.00 488.28 258.00 0.0944 23 N2 6 40.10 28.02 488.28 368.00 0.0700 67 NH3 4 40.10 17.04 488.28 260.00 0.0837 98 NO 4 40.10 30.01 488.28 317.00 0.0810 83 O2 6 40.10 32.00 488.28 346.00 0.0640 76