A 1.3 cm line survey toward Orion KL | Astronomy & Astrophysics (A&A)

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Volume 581 (September 2015)

A&A, 581 (2015) A48

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Table A.2

Observed properties of NH₃, ¹⁵NH₃ and NH₂D transitions.

Rest frequency			υ _lsr	Δυ	S _ν	σ
(MHz)	(J,K)	(Jy km s^-1)	(km s^-1)	(km s^-1)	(Jy)	(Jy)	Notes

NH₃ non-metastable

18 017.3	(7, 3)	1.12 ± 0.02	3.4 ± 0.1	6.4 ± 0.1	0.165 ± 0.005	0.005	HC
18 391.5	(6, 1)	0.28 ± 0.02	3.8 ± 0.3	6.7 ± 0.6	0.039 ± 0.006	0.006	HC
18 499.3	(9, 6)	0.94 ± 0.03	3.8 ± 0.1	6.1 ± 0.2	0.145 ± 0.008	0.008	HC
18 808.5	(8, 5)	< 5.89				0.006	b
18 884.6	(6, 2)	1.27 ± 0.03	3.9 ± 0.1	6.5 ± 0.2	0.185 ± 0.007	0.006	HC
19 218.4	(7, 4)	1.76 ± 0.02	4.9 ± 0.1	7.3 ± 0.1	0.227 ± 0.006	0.006	HC
19 757.5	(6, 3)	4.82 ± 0.07	4.9 ± 0.1	8.3 ± 0.1	0.543 ± 0.014	0.014	HC
19 838.3	(5, 1)	1.93 ± 0.05	5.8 ± 0.1	8.2 ± 0.3	0.220 ± 0.011	0.011	HC
20 371.5	(5, 2)	3.65 ± 0.07	7.2 ± 0.1	9.4 ± 0.2	0.365 ± 0.009	0.006	HC
20 719.2	(8, 6)	< 5.1410				0.008	HC, b
20 735.4	(9, 7)	0.51 ± 0.03	5.9 ± 0.2	4.7 ± 0.3	0.102 ± 0.011	0.010	HC
20 804.9	(7, 5)	2.83 ± 0.05	7.5 ± 0.1	7.9 ± 0.2	0.334 ± 0.008	0.008	HC
20 994.7	(6, 4)	5.76 ± 0.04	7.4 ± 0.1	9.1 ± 0.1	0.595 ± 0.010	0.010	HC
21 070.7	(11, 9)	0.28 ± 0.03	6.9 ± 0.3	6.2 ± 0.7	0.043 ± 0.007	0.008	HC
21 134.3	(4, 1)	3.32 ± 0.04	7.2 ± 0.1	8.2 ± 0.1	0.381 ± 0.009	0.008	HC
21 285.3	(5, 3)	9.67 ± 0.04	5.9 ± 0.1	11.8 ± 0.1	0.773 ± 0.007	0.008	a
21 703.4	(4, 2)	17.16 ± 0.09				0.016	a
22 653.0	(5, 4)	10.65 ± 0.02				0.003	a
22 688.3	(4, 3)	22.20 ± 0.02				0.004	a
22 732.5	(6, 5)	8.80 ± 0.03				0.005	a
22 834.2	(3, 2)	19.39 ± 0.04				0.006	a
22 925.0	(7, 6)	8.99 ± 0.04				0.007	a
23 098.8	(2, 1)	26.22 ± 0.04				0.006	a
23 232.3	(8, 7)	2.71 ± 0.02	5.8 ± 0.1	7.1 ± 0.1	0.358 ± 0.006	0.006	HC
23 657.6	(9, 8)	1.65 ± 0.02	7.5 ± 0.1	6.4 ± 0.1	0.244 ± 0.005	0.005	HC
24 205.4	(10, 9)	1.25 ± 0.01	7.1 ± 0.1	6.9 ± 0.1	0.171 ± 0.004	0.004	HC
24 882.0	(11, 10)	0.35 ± 0.01	7.3 ± 0.1	5.7 ± 0.2	0.058 ± 0.004	0.004	HC

NH₃ metastable

23 694.5	(1, 1)	85.91 ± 0.04				0.004	a
23 722.6	(2, 2)	82.79 ± 0.06				0.006	a
23 870.1	(3, 3)	< 104.32				0.008	a, b
24 139.4	(4, 4)	41.12 ± 0.03				0.003	a
24 532.9	(5, 5)	31.84 ± 0.04				0.005	a
25 056.0	(6, 6)	32.80 ± 0.04				0.004	a
25 715.1	(7, 7)	13.29 ± 0.03				0.003	a

¹⁵NH₃ non-metastable

21 637.9	(4, 3)	0.59 ± 0.04	5.3 ± 0.2	5.8 ± 0.5	0.095 ± 0.013	0.013	HC
21 784.0	(3, 2)	0.41 ± 0.06	6.5 ± 0.4	6.3 ± 1.3	0.062 ± 0.013	0.013	HC
22 044.2	(2, 1)	0.40 ± 0.05	5.9 ± 0.4	7.3 ± 1.2	0.052 ± 0.011	0.011	HC

¹⁵NH₃ metastable

22 624.9	(1, 1)	0.52 ± 0.04	6.1 ± 0.2	8.7 ± 0.9	0.056 ± 0.006	0.006	HC
22 649.8	(2, 2)	0.55 ± 0.02	5.8 ± 0.1	6.8 ± 0.4	0.076 ± 0.007	0.006	HC
22 789.4	(3, 3)	1.38 ± 0.02	5.7 ± 0.1	7.4 ± 0.1	0.175 ± 0.005	0.005	HC
23 046.0	(4, 4)	0.55 ± 0.02	5.5 ± 0.1	6.3 ± 0.3	0.082 ± 0.006	0.006	HC
23 422.0	(5, 5)	0.33 ± 0.02	6.1 ± 0.2	7.2 ± 0.4	0.043 ± 0.005	0.005	HC
23 922.3	(6, 6)	0.31 ± 0.01	5.7 ± 0.1	7.1 ± 0.3	0.041 ± 0.003	0.003	HC
25 323.5	(8, 8)	< 0.19				0.004	HC, b

NH₂D	J _{k _a , k _c}

18 807.9	3_1,3s − 3_0,3a	< 5.84				0.006	ortho, HC, b
25 023.8	4_1,4a − 4_0,4s	0.19±0.01	6.9±0.2	5.7±0.5	0.031±0.004	0.005	para, HC

Notes. ^aThe line originates not only from the HC but also contains emission from other componenets such as the CR, plateau, ER and HC(S). ^bThis line is blended (see Table 2).

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