NICMOS Instrument Handbook for Cycle 11

Infrared Line Lists

We present here lists of some of the more important atomic and molecular lines in the infrared. It is by no means exhaustive.

Table A2.9: Recombination Lines of Atomic Hydrogen: Paschen Series¹
Transition (Nu - Nl) Vacuum Wavelength (microns) Vacuum Frequency (cm -1) I/I(H) Te=Ne=104

4-3

1.8756

5531.55

0.332

5-3

1.2822

7799.33

0.162

6-3

1.0941

9139.8

0.0901

7-3

1.0052

9948.1

¹ Intensities from Hummer & Storey, MNRAS 224, 801.

Table A2.10: Recombination Lines of Atomic Hydrogen: Brackett Series
Transition (Nu-Nl) Vacuum Wavelength (microns) Frequency (cm -1) I/I(H) Te=104

5-4

4.5225

2467.765

0.0777

6-4

2.6259

3808.25

7-4

2.1661

4616.61

0.0275

8-4

1.9451

5141.14

0.0181

9-4

1.8181

5500.8

0.0126

10-4

1.7367

5758.1

0.00909

11-4

1.6811

5948.45

0.00679

12-4

1.6412

6093.22

0.00521

13-4

1.6114

6205.9

0.00409

14-4

1.5885

6295.3

0.00327

15-4

1.5705

6367.4

0.00266

16-4

1.5561

6426.4

0.00220

17-4

1.5443

6475.3

0.00184

18-4

1.5346

6516.3

0.00156

19-4

1.5265

6551.0

0.00133

20-4

1.5196

6580.7

0.00116

series limit

1.459

6855.

Table A2.11: HeI and HeII Lines
ID Transition (µm)

HeI 7F-3D,3Fo-3D 1.0031

HeI 7F-3D,1Fo-1D 1.0034

HeII 14-6 1.0049

HeII 5-4 1.0133

HeI 6D-3P,3dD-3Po 1.0314

HeII 13-6 1.0422

HeI 6S-3P,3S-3Po 1.0668

HeI 2P-2S,3Po-3S,GU=3 1.0832

HeI 2P-2S,3Po-3P,GU=1 1.0832

HeI 2P-2S,3Po-3S,GU=5 1.0833

HeI 2P-2S,3Po-3S,GU=9 1.0833

HeI 6P-3D,1Po-1d 1.0905

HeI 6F-3D,3Fo-3D 1.0916

HeI 6F-3D,1Fo-1D 1.0920

HeII 12-6 1.0938

HeI 6P-3D,3Po-3D 1.0997

HeI 5P-3S,1Po-1S 1.1016

HeI 6D-3P,1D-1Po 1.1048

HeII 7LIMIT 1.1164

HeI 6S-3P,1S-1Po 1.1229

HeII 7-5 1.1628

HeII 11-6 1.1677

HeI 5D-3P,3D-3Po 1.1972

HeII 21-7 1.2256

HeII 22-7 1.2418

HeI 4P-3S,3Po-3S 1.2531

HeII 20-7 1.2719

HeI 5P-3D,1Po-1D 1.2759

HeI 5F-3D,3Fo-3D 1.2789

HeII 10-6 1.2817

HeI 5S-3P,3S-3Po 1.2850

HeII 19-7 1.2914

HeI 5D-3P,1D-1Po 1.2971

HeI 5F-3D,1Fo-1D 1.2976

HeI 5P-3D,3Po-3D 1.2988

HeII 18-7 1.3150

HeI 5S-3P,1S-1Po 1.3415

HeII 17-7 1.3442

HeII 15-7 1.4273

HeII 8LIMIT 1.4578

HeII 9-6 1.4765

HeII 14-7 1.4882

HeI 4P-3S,1Po-1S 1.5088

HeII 13-7 1.5719

HeII 25-8 1.6241

HeII 24-8 1.6400

HeII 23-8 1.6584

HeII 22-8 1.6799

HeII 12-7 1.6926

HeI 4D-3P,3D-3Po 1.7007

HeII 21-8 1.7053

HeII 20-8 1.7355

HeII 19-8 1.7717

HeII 18-8 1.8167

HeII 9LIMIT 1.8450

HeI 4P-3D,1Po-1D 1.8561

HeII 6-5 1.8639

HeI 4F-3D,3Fo-3D 1.8691

HeI 4F-3D,1Fo-1d 1.8702

HeII 17-8 1.8725

HeII 8-6 1.8753

HeII 11-7 1.8770

HeI 8S-4P,3S-3Po 1.9068

HeI 4D-3P,1D-1Po 1.9094

HeI 4P-3D,3Po-3D 1.9548

HeII 15-8 2.0379

HeI 6P-4S,3Po-3S 2.0430

HeI 2P-2S,1Po-1S 2.0587

HeI 4S-3P,3S-3Po 2.1126

HeI 3pP-4sS 2.1132

HeI 4S-3P,1S-1Po 2.1138

HeII 25-9 2.1195

HeII 24-9 2.1469

HeI 7S-4P,3S-3Po 2.1500

HeI 7F-4D,3Fo-3D 2.1614

HeI 4dD-7fF 2.1617

HeI 7F-4D,1Fo-1D 2.1623

HeII 14-8 2.1653

HeI 4-7 2.166

HeII 23-9 2.1786

HeI 7D-4P,1D-1Po 2.1847

HeII 10-7 2.1891

HeII 22-9 2.2155

HeI 7S-4P,1S-1Po 2.2290

HeII 21-9 2.2601

HeII 10LIMIT 2.2778

HeI 6P-4S,1Po-1S 2.3069

HeII 20-9 2.314

HeII 13-8 2.348

HeII 19-9 2.3788

HeII 18-9 2.4606

HeI 6D-4P,3D-3Po 2.4734

Table A2.12: CO Vibration-rotation Band-heads¹
Transition (Nu-Nl) 12C16O Vacuum Wavelength (microns) Frequency (cm -1) 13C16O Vacuum Wavelength (microns) Frequency (cm -1)

2-0 2.2935 4360.1 2.3448 4264.7

3-1 2.3227 4305.4 2.3739 4212.4

4-2 2.3535 4250.8 2.4037 4160.3

5-3 2.3829 4196.5 2.4341 4108.3

6-4 2.4142 4142.2 2.4652 4056.4

7-5 2.4461 4088.2 2.4971 4004.7

8-6 2.4787 4034.3

9-7 2.5122 3980.5

3-0 1.5582 6417.8

4-1 1.5780 6337.2

5-2 1.5982 6257.2

6-3 1.6187 6177.7

7-4 1.6397 6098.8

8-5 1.6610 6020.5

¹ All of the delta v = 2 bandheads occur near J=50.

Table A2.13: Important H₂ Lines¹
Line Name Wavel (µm) Freq (cm^-1) g(J) E_upper (K) A (10e^-7s) LTE I(line)/I(1-0S(1))

1000K 2000K 3000K 4000K

1-0 S(0) 2.2235 4497.41 5 6471 2.53 0.27 0.21 0.19 0.19

1-0 S(1) 2.1218 4712.91 21 6956 3.47 1.00 1.00 1.00 1.00

1-0 S(2) 2.0338 4917.01 9 7584 3.98 0.27 0.37 0.42 0.44

1-0 S(3) 1.9576 5108.40 33 8365 4.21 0.51 1.02 1.29 1.45

1-0 S(4) 1.8920 5282.52 13 9286 4.19 0.082 0.26 0.39 0.47

1-0 S(5) 1.8358 5447.25 45 10341 3.96 0.096 0.52 0.91 1.21

1-0 S(6) 1.7880 5592.9 17 11522 3.54 0.010 0.10 0.21 0.31

1-0 S(7) 1.7480 5720.8 57 12817 2.98 0.008 0.15 0.40 0.65

1-0 S(8) 1.7147 5831.9 21 14221 2.34 0.001 0.022 0.074 0.14

1-0 S(9) 1.6877 5925.1 69 15722 1.68 0.025 0.11 0.22

1-0 S(10) 1.6665 6000.0 25 17311 1.05 0.003 0.015 0.034

1-0 S(11) 1.6504 6059.0 81 18979 0.53 0.002 0.014 0.037

1-0 Q(1) 2.4066 4155.25 9 6149 4.29 1.05 0.70 0.61 0.57

1-0 Q(2) 2.4134 4143.47 5 6471 3.03 0.30 0.23 0.22 0.21

1-0 Q(3) 2.4237 4125.87 21 6956 2.78 0.70 0.70 0.70 0.70

1-0 Q(4) 2.4375 412.57 9 7586 2.65 0.15 0.21 0.23 0.24

1-0 Q(5) 2.4548 4073.72 33 8365 2.55 0.24 0.49 0.62 0.70

1-0 Q(6) 2.4756 4039.5 13 9286 2.45 0.036 0.12 0.17 0.21

1-0 Q(7) 2.5001 3999.9 45 10341 2.34 0.042 0.11 0.40 0.53

3-2 S(0) 2.5014 3997.73 5 17387 3.88 0.001 0.007 0.016

3-2 S(1) 2.3864 4190.33 21 17818 5.14 0.006 0.035 0.087

3-2 S(2) 2.2870 4372.49 9 18386 5.63 0.002 0.014 0.037

3-2 S(3) 2.2014 4542.57 33 19086 5.63 0.006 0.043 0.12

3-2 S(4) 2.1280 4699.32 13 19912 5.22 0.001 0.012 0.036

3-2 S(5) 2.0656 4841.3 45 20856 4.50 0.003 0.023 0.088

3-2 S(6) 2.0130 4967.7 17 21911 3.57 0.006 0.021

3-2 S(7) 1.9692 5078.1 57 23069 2.54 0.001 0.010 0.038

4-3 S(3) 2.3446 4265.4 21

4-3 S(4) 2.2668 4411.5 9

4-3 S(5) 2.201 4543.5 33

5-4 S(5) 2.3555 4245.4 45

5-4 S(7) 2.2510 4442.5 57

2-0 S(0) 1.2383 8075.3 5 12095 1.27 0.001 0.012 0.028 0.043

2-0 S(1) 1.1622 8604.2 21 12550 1.90 0.004 0.061 0.15 0.23

2-0 S(2) 1.1382 8785.5 9 13150 2.38 0.001 0.025 0.070 0.12

2-0 S(3) 1.1175 8948.6 33 13890 2.77 0.002 0.074 0.24 0.43

2-0 S(4) 1.0998 9092.4 13 14764 3.07 0.021 0.078 0.15

2-0 S(5) 1.0851 9215.5 45 15763 3.28 0.001 0.048 0.21 0.44

2-9 Q(1) 1.2383 8075.3 9 11789 1.94 0.003 0.037 0.082 0.12

2-0 Q(2) 1.2419 8051.9 5 12095 1.38 0.001 0.012 0.029 0.045

2-0 Q(3) 1.2473 8017.2 21 12550 1.29 0.002 0.039 0.098 0.24

2-0 Q(4) 1.2545 7971.1 9 13150 1.27 0.001 0.012 0.033 0.056

2-0 Q(5) 1.2636 7913.3 33 13890 1.23 0.001 0.024 0.093 0.17

2-0 O(2) 1.2932 7732.6 1 11635 3.47 0.001 0.008 0.016 0.024

2-0 O(3) 1.3354 7488.3 9 11789 1.61 0.003 0.028 0.063 0.094

2-0 O(4) 1.3817 7237.5 5 12095 1.03 0.001 0.008 0.020 0.030

2-0 O(5) 1.4322 6982.5 21 12550 0.698 0.001 0.018 0.046 0.074

¹ Energy levels calculated using Dabrowski & Herzberg, Can J Phys 62, 1639 (1984). Einstein coefficients from Turner et al. ApJ Suppl 35, 281 (1977).

***Table A2.9: Recombination Lines of Atomic Hydrogen: Paschen Series¹***
Transition (Nu - Nl)	Vacuum Wavelength (microns)	Vacuum Frequency (cm -1)	I/I(H) Te=Ne=104
4-3	1.8756	5531.55	0.332
5-3	1.2822	7799.33	0.162
6-3	1.0941	9139.8	0.0901
7-3	1.0052	9948.1

***Table A2.10: Recombination Lines of Atomic Hydrogen: Brackett Series***
Transition (Nu-Nl)	Vacuum Wavelength (microns)	Frequency (cm -1)	I/I(H) Te=104
5-4	4.5225	2467.765	0.0777
6-4	2.6259	3808.25
7-4	2.1661	4616.61	0.0275
8-4	1.9451	5141.14	0.0181
9-4	1.8181	5500.8	0.0126
10-4	1.7367	5758.1	0.00909
11-4	1.6811	5948.45	0.00679
12-4	1.6412	6093.22	0.00521
13-4	1.6114	6205.9	0.00409
14-4	1.5885	6295.3	0.00327
15-4	1.5705	6367.4	0.00266
16-4	1.5561	6426.4	0.00220
17-4	1.5443	6475.3	0.00184
18-4	1.5346	6516.3	0.00156
19-4	1.5265	6551.0	0.00133
20-4	1.5196	6580.7	0.00116
series limit	1.459	6855.

***Table A2.11: HeI and HeII Lines***
ID	Transition	(µm)
HeI	7F-3D,3Fo-3D	1.0031
HeI	7F-3D,1Fo-1D	1.0034
HeII	14-6	1.0049
HeII	5-4	1.0133
HeI	6D-3P,3dD-3Po	1.0314
HeII	13-6	1.0422
HeI	6S-3P,3S-3Po	1.0668
HeI	2P-2S,3Po-3S,GU=3	1.0832
HeI	2P-2S,3Po-3P,GU=1	1.0832
HeI	2P-2S,3Po-3S,GU=5	1.0833
HeI	2P-2S,3Po-3S,GU=9	1.0833
HeI	6P-3D,1Po-1d	1.0905
HeI	6F-3D,3Fo-3D	1.0916
HeI	6F-3D,1Fo-1D	1.0920
HeII	12-6	1.0938
HeI	6P-3D,3Po-3D	1.0997
HeI	5P-3S,1Po-1S	1.1016
HeI	6D-3P,1D-1Po	1.1048
HeII	7LIMIT	1.1164
HeI	6S-3P,1S-1Po	1.1229
HeII	7-5	1.1628
HeII	11-6	1.1677
HeI	5D-3P,3D-3Po	1.1972
HeII	21-7	1.2256
HeII	22-7	1.2418
HeI	4P-3S,3Po-3S	1.2531
HeII	20-7	1.2719
HeI	5P-3D,1Po-1D	1.2759
HeI	5F-3D,3Fo-3D	1.2789
HeII	10-6	1.2817
HeI	5S-3P,3S-3Po	1.2850
HeII	19-7	1.2914
HeI	5D-3P,1D-1Po	1.2971
HeI	5F-3D,1Fo-1D	1.2976
HeI	5P-3D,3Po-3D	1.2988
HeII	18-7	1.3150
HeI	5S-3P,1S-1Po	1.3415
HeII	17-7	1.3442
HeII	15-7	1.4273
HeII	8LIMIT	1.4578
HeII	9-6	1.4765
HeII	14-7	1.4882
HeI	4P-3S,1Po-1S	1.5088
HeII	13-7	1.5719
HeII	25-8	1.6241
HeII	24-8	1.6400
HeII	23-8	1.6584
HeII	22-8	1.6799
HeII	12-7	1.6926
HeI	4D-3P,3D-3Po	1.7007
HeII	21-8	1.7053
HeII	20-8	1.7355
HeII	19-8	1.7717
HeII	18-8	1.8167
HeII	9LIMIT	1.8450
HeI	4P-3D,1Po-1D	1.8561
HeII	6-5	1.8639
HeI	4F-3D,3Fo-3D	1.8691
HeI	4F-3D,1Fo-1d	1.8702
HeII	17-8	1.8725
HeII	8-6	1.8753
HeII	11-7	1.8770
HeI	8S-4P,3S-3Po	1.9068
HeI	4D-3P,1D-1Po	1.9094
HeI	4P-3D,3Po-3D	1.9548
HeII	15-8	2.0379
HeI	6P-4S,3Po-3S	2.0430
HeI	2P-2S,1Po-1S	2.0587
HeI	4S-3P,3S-3Po	2.1126
HeI	3pP-4sS	2.1132
HeI	4S-3P,1S-1Po	2.1138
HeII	25-9	2.1195
HeII	24-9	2.1469
HeI	7S-4P,3S-3Po	2.1500
HeI	7F-4D,3Fo-3D	2.1614
HeI	4dD-7fF	2.1617
HeI	7F-4D,1Fo-1D	2.1623
HeII	14-8	2.1653
HeI	4-7	2.166
HeII	23-9	2.1786
HeI	7D-4P,1D-1Po	2.1847
HeII	10-7	2.1891
HeII	22-9	2.2155
HeI	7S-4P,1S-1Po	2.2290
HeII	21-9	2.2601
HeII	10LIMIT	2.2778
HeI	6P-4S,1Po-1S	2.3069
HeII	20-9	2.314
HeII	13-8	2.348
HeII	19-9	2.3788
HeII	18-9	2.4606
HeI	6D-4P,3D-3Po	2.4734

***Table A2.12: CO Vibration-rotation Band-heads¹***
Transition (Nu-Nl)	12C16O Vacuum Wavelength (microns)	Frequency (cm -1)	13C16O Vacuum Wavelength (microns)	Frequency (cm -1)
2-0	2.2935	4360.1	2.3448	4264.7
3-1	2.3227	4305.4	2.3739	4212.4
4-2	2.3535	4250.8	2.4037	4160.3
5-3	2.3829	4196.5	2.4341	4108.3
6-4	2.4142	4142.2	2.4652	4056.4
7-5	2.4461	4088.2	2.4971	4004.7
8-6	2.4787	4034.3
9-7	2.5122	3980.5
3-0	1.5582	6417.8
4-1	1.5780	6337.2
5-2	1.5982	6257.2
6-3	1.6187	6177.7
7-4	1.6397	6098.8
8-5	1.6610	6020.5

***Table A2.13: Important H₂ Lines¹***
Line Name	Wavel (µm)	Freq (cm^-1)	g(J)	E_upper (K)	A (10e^-7s)	LTE I(line)/I(1-0S(1))
1000K	2000K	3000K	4000K
1-0	S(0)	2.2235	4497.41	5	6471	2.53	0.27	0.21	0.19	0.19
1-0	S(1)	2.1218	4712.91	21	6956	3.47	1.00	1.00	1.00	1.00
1-0	S(2)	2.0338	4917.01	9	7584	3.98	0.27	0.37	0.42	0.44
1-0	S(3)	1.9576	5108.40	33	8365	4.21	0.51	1.02	1.29	1.45
1-0	S(4)	1.8920	5282.52	13	9286	4.19	0.082	0.26	0.39	0.47
1-0	S(5)	1.8358	5447.25	45	10341	3.96	0.096	0.52	0.91	1.21
1-0	S(6)	1.7880	5592.9	17	11522	3.54	0.010	0.10	0.21	0.31
1-0	S(7)	1.7480	5720.8	57	12817	2.98	0.008	0.15	0.40	0.65
1-0	S(8)	1.7147	5831.9	21	14221	2.34	0.001	0.022	0.074	0.14
1-0	S(9)	1.6877	5925.1	69	15722	1.68	0.025	0.11	0.22
1-0	S(10)	1.6665	6000.0	25	17311	1.05	0.003	0.015	0.034
1-0	S(11)	1.6504	6059.0	81	18979	0.53	0.002	0.014	0.037
1-0	Q(1)	2.4066	4155.25	9	6149	4.29	1.05	0.70	0.61	0.57
1-0	Q(2)	2.4134	4143.47	5	6471	3.03	0.30	0.23	0.22	0.21
1-0	Q(3)	2.4237	4125.87	21	6956	2.78	0.70	0.70	0.70	0.70
1-0	Q(4)	2.4375	412.57	9	7586	2.65	0.15	0.21	0.23	0.24
1-0	Q(5)	2.4548	4073.72	33	8365	2.55	0.24	0.49	0.62	0.70
1-0	Q(6)	2.4756	4039.5	13	9286	2.45	0.036	0.12	0.17	0.21
1-0	Q(7)	2.5001	3999.9	45	10341	2.34	0.042	0.11	0.40	0.53
3-2	S(0)	2.5014	3997.73	5	17387	3.88	0.001	0.007	0.016
3-2	S(1)	2.3864	4190.33	21	17818	5.14	0.006	0.035	0.087
3-2	S(2)	2.2870	4372.49	9	18386	5.63	0.002	0.014	0.037
3-2	S(3)	2.2014	4542.57	33	19086	5.63	0.006	0.043	0.12
3-2	S(4)	2.1280	4699.32	13	19912	5.22	0.001	0.012	0.036
3-2	S(5)	2.0656	4841.3	45	20856	4.50	0.003	0.023	0.088
3-2	S(6)	2.0130	4967.7	17	21911	3.57	0.006	0.021
3-2	S(7)	1.9692	5078.1	57	23069	2.54	0.001	0.010	0.038
4-3	S(3)	2.3446	4265.4	21
4-3	S(4)	2.2668	4411.5	9
4-3	S(5)	2.201	4543.5	33
5-4	S(5)	2.3555	4245.4	45
5-4	S(7)	2.2510	4442.5	57
2-0	S(0)	1.2383	8075.3	5	12095	1.27	0.001	0.012	0.028	0.043
2-0	S(1)	1.1622	8604.2	21	12550	1.90	0.004	0.061	0.15	0.23
2-0	S(2)	1.1382	8785.5	9	13150	2.38	0.001	0.025	0.070	0.12
2-0	S(3)	1.1175	8948.6	33	13890	2.77	0.002	0.074	0.24	0.43
2-0	S(4)	1.0998	9092.4	13	14764	3.07	0.021	0.078	0.15
2-0	S(5)	1.0851	9215.5	45	15763	3.28	0.001	0.048	0.21	0.44
2-9	Q(1)	1.2383	8075.3	9	11789	1.94	0.003	0.037	0.082	0.12
2-0	Q(2)	1.2419	8051.9	5	12095	1.38	0.001	0.012	0.029	0.045
2-0	Q(3)	1.2473	8017.2	21	12550	1.29	0.002	0.039	0.098	0.24
2-0	Q(4)	1.2545	7971.1	9	13150	1.27	0.001	0.012	0.033	0.056
2-0	Q(5)	1.2636	7913.3	33	13890	1.23	0.001	0.024	0.093	0.17
2-0	O(2)	1.2932	7732.6	1	11635	3.47	0.001	0.008	0.016	0.024
2-0	O(3)	1.3354	7488.3	9	11789	1.61	0.003	0.028	0.063	0.094
2-0	O(4)	1.3817	7237.5	5	12095	1.03	0.001	0.008	0.020	0.030
2-0	O(5)	1.4322	6982.5	21	12550	0.698	0.001	0.018	0.046	0.074

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