TABLE II. Spectral positions of the rotational spectral lines (in nanometers), which belong to the (^-branch of the (()-()). (1-1). and (2-2) bands of the Fulcher-a system of H,. Transition Q\ Q2 Q7> Q4 Q5 Q6 (0-0) 601.83 602.38 603.19 604.27 605.61 607.20 (1-1) 612.18 612.72 613.54 614.62 615.96 (2-2) 622.48 623.03 623.84 624.92 626.25 Table 1. Rate coefficients (cm1 s" ■ i of the direct and dissociative excitation of the H„ and lines by electron impact calculated using a Maxwell EEDF at various electron temperatures Tt. The calculated data are given for the a« when redistribution of populations can be neglected (case 1) and in the case of a Boltzmaim distribution over the fine structure sublevels (case 2). Direct excitation Dissociative excitation T< (eV) Cm Case 2 4.97E-20 1.15E-14 7.03E-13 5.43E-12 1.84E-1I 4.I4E-11 7.38E-U 1.14E-10 1.60E-10 2.09E-10 2.6 IE 10 3.14E-10 3.68E-10 4.21E-10 4.74E-10 S.26E-10 5.77E-10 6.27E-10 6.75E-10 7.22E-10 8.12E-10 8.96E-10 9.76E-10 1.05E-09 1.18E-09 1.30E-09 1.41E-09 1.63E-09 1.79E-09 2.03E-09 2.18E-09 2.39E-09 2.4NU 09 .VI i: j i" 5 1. 2. M 4.« 6.1f 7.: 9 2] 4 98| 2.: 2.« 2.: 2. ' 3.1 3. : 3. J 3.81 4.03 4. < 4.'. 4.5J Case 2 21 3.93E- 21 13 1.70E- 13 13 1.26E- 13 12 1.07E- 12 12 3.82E- 12 11 8.86E- 12 11 1.61E- 11 11 2.53E- 11 11 3.58E- 11 •ll 4.73E- 11 11 5.94E- 11 11 7.19E- 11 10 8.45E- 11 10 9.71E- 11 10 1.10E- 10 10 1.22E- 10 10 1.34E- 10 10 1.46E- 10 JO 1.57E- 10 lo 1.68E- 10 10 1.89E- 10 10 2.09E- 10 10 2.28E- 10 10 2.45E- 10 10 2.77E- 10 10 3.05E- 10 10 3.29E- 10 10 3.79E- 10 10 4.I8E- 10 10 4.7IE- 10 10 5.05E- 10 10 5.48E- 10 10 5.64E- 10 Case 2 25 2.63E- 25 17 5.94E- IS 15 1.77E- 15 14 3.06E- 14 13 1.69E- 13 12 5.28E- 13 12 I.19E- 12 12 2.20E- 12 12 3.55E- 12 11 5.21E- 12 11 7.15E- 12 11 9.32E- 12 11 1.17E- 11 11 1.42E- 11 \ 1 1.69E- 11 11 1.%E- 11 11 2.24E- 11 11 2.53E- 11 11 2.82E- 11 11 3.11E- 11 11 3.71E- 11 11 4.30E- 11 10 4.88E- 11 10 5.46E- 11 10 6.57E- 11 10 7.64E- 11 10 8.64E- 11 10 1.09E- 10 10 1.28E- 10 10 1.58E- 10 10 1.79E- 10 10 2.08E- 10 10 2.22E- 10 Case 2 -26 IK 16 -15 IE—14 -13 13 13 -13 E-12 -12 12 12 12 12 12 12 12 12 1 -1 DE-1 2-1 1 -1 JE-1 i4e-1 -1 1 1 1 1 2.90E- 1.10E 3.65E- 6.55E- 3.68E- 1.17E- 2.68E- 5.03E- 8.26E- 1.24E- 1.73E- 2.31E- 2.95E- 3.65E- 4.42E- 5.23E- 6.08E- 6%E- 7.88E- 8.8 IE- 1.08E- 1.28E- 1.48E- 1.69E- 2.09E- 2.48E- 2.85E- 3.69E- 4.39E- 5.46E- 6.19E- 7.14E- 7.48E- 2^ 19 17 16 13 14 14 14 14 13 13 13 13 13 13 13 13 13 13 13 12 12 12 12 12 12 12 12 12 12 12 12 12 Table 2. Rate coefficients (cm1 s ') for the excitation of the J JI"I, , v = 2. N = 1 level of molecular hydrogen by electron impact from the ground electronic-vibronic state, calculated using a Maxwellian EEDF at various electron temperatures Tc multipUed with the radiative lifetime of this state r^-2i and the radiative transition probabilities A^j21 of the transition J iT\^, v = 2. N = 1 a3SJ, v = 2, N = 1. 7-e(eV) A^'r^K^ Tc (eV) A'j> t^K'^ Tc(eV) Cv2,^ 0.5 1.06E-22 6 1.94E-11 14 4.19E-1 1 2.10E-16 6.5 222E-11 16 4.26E-1 1.5 2.45E-14 7 248E-11 IS 4.24E-1 2 2J4E-13 7.5 273E-U 20 4.1 HE 1 2.5 IjOOE-12 8 2.9411 11 25 3.91E-1 3 2.46E-12 8.5 3.14E-11 30 3.58E-1 3.5 458E-12 9 3.32E-M 40 2.99E-1 4 721E-12 9.5 3.47E-11 5(1 2.5 IE-1 4.5 1.02E-11 10 3.61E-U 75 1.72E-1 5 1J3E-11 11 3.83E-11 100 1.27E-1 5.5 1.64E-11 12 4.00E-11 [H]/[H2] Tf [eV] Figure 4. The ratio of mtensities of H„ and lines /H„ / ^ as Figure 5. The ratio of intensities of H, and Hp lines /H„ //H, as function of the density ratio of atomic and molecular hydrogen, function of Tf1 calculated formations ratios of densities of atomic calculated for case 2 at various Tf. and molecular hydrogen (i — [HJ/CHJ) for case 2. Ha {2-2)0,1 .......... 1000 ■ 0.5 eV, f / * " y.-' .'■ *'// ' 100 - WOeV^ V' "50eV~/ St t! \ i 10 / '5eV 20 eV 1 ■ . "leV t0J Iff1 10'' 10° 10' [tf]/[tf2] Figure 7, The ratio of intensities of Ho and<2-2)QI lines In. //c-2)oi as a function of the density ratio of atomic and molecular hydrogen [H]/[Hi], calculated forcase 2at various 7^* and Tf = 1000 K_ Ha ' *t,2-2)Q! 1000- - 100- ■, 'v-.._k = 1 10 k=0.1 ^ - 1 ■ ^k = 0.01 .jT - 0.1 / k = 0.001 - 0.01 /k=0 1 10 100 Tf [eV] Figure 8. The ratio of intensities of H„ and(2-2)QI lines Its. /la-DQt 45 a function of Tf calculated for various ratios of densities of atomic and molecular hydrogen (i = [HJ/tBj]) at a Tt - 1000 K.