Table 7
Spectroscopic properties of the CH3CSNH2 lines shown toward the Sgr B2 and NGC 6334I regions.
| Transition | Symm. | Frequency | Eup | Sijμ2 | Transition |
|---|---|---|---|---|---|
 |
(MHz) | (K) | (D2) | type | |
| 1(0,1) – 0(0, 0) | E | 8189.4099(78) | 1.80 | 15.7 | aP0,1 |
| 3(1,2) – 3(1, 3) | A | 9889.2108(51) | 2.91 | 9.3 | aQ0,−1 |
| E | 10 085.3720(121) | 4.30 | 9.3 | aQ0,−1 | |
| 1(1,1) – 0(0, 0) | A | 13 108.4651(33) | 0.63 | 1.2 | bP1,1 |
| 2(1,2) – 1(1, 1) | A | 15 107.3571(9) | 1.35 | 23.5 | aP0,1 |
| E | 15 402.1503(85) | 2.73 | 22.1 | aP0,1 | |
| 2(1,1) – 1(1, 0) | E | 17 958.6594(97) | 3.01 | 21.4 | aP0,1 |
| A | 18 421.0295(25) | 1.59 | 23.5 | aP0,1 | |
| 3(0,3) – 2(0, 2) | E | 23 679.9434(25) | 3.71 | 45.9 | aP0,1 |
| A | 23 790.9359(13) | 2.33 | 45.3 | aP0,1 | |
| 13(*,13) – 12(*,12) | E | 90 629.9722(29) | 32.74 | 428.0 | |
| 12(3,10) – 11(3,9) | A | 96 830.8697(45) | 33.60 | 171.0 | |
| 14(*,14) – 13(*,13) v = 1 | E | 96 876.3625(94) | 124.33 | 463.4 | |
| 14(*,14) – 13(*,13) | E | 97 354.0297(31) | 37.41 | 461.8 | |
| 14(*,14) – 13(*,13) | A | 974 03.6841(35) | 36.05 | 461.6 | |
| 15(*,15) – 14(*,14) | E | 104 078.1290(33) | 42.40 | 495.5 | |
| 15(*,15) – 14(*,14) | A | 104 127.4707(38) | 41.05 | 495.3 | |
| 14(2,12) – 13(2,11) | E | 110 443.5401(44) | 45.08 | 203.0 | |
| 15(2,14) – 14(2,13) | E | 110 488.6550(31) | 46.76 | 224.7 | |
| 15(1,14) – 14(1,13) | E | 110 493.3785(31) | 46.76 | 224.7 | |
| 16(*,16) – 15(*,15) | E | 110 802.2128(35) | 47.72 | 529.1 | |
| 16(*,16) – 15(*,15) | A | 110 851.2160(40) | 46.37 | 529.0 | |
| 16(*,16) – 15(*,15) v = 1 | A | 111 137.3603(103) | 120.00 | 528.2 | |
| 18(*,17) – 17(*,16) | E | 130 649.9350(34) | 64.60 | 577.4 | |
| 18(*,17) – 17(*,16) | A | 130 810.0540(37) | 63.35 | 576.9 | |
| 20(*,19) – 19(*,18) | E | 144 091.6978(36) | 78.11 | 644.6 | |
| 20(*,19) – 19(*,18) | A | 144 251.6541(39) | 76.88 | 644.2 | |
| 21(*,21) – 20(*,20) | E | 144 421.2557(45) | 79.15 | 697.5 | |
| 21(*,21) – 20(*,20) | A | 144 468.4149(50) | 77.81 | 697.4 |
Notes. The approximate center frequency is listed for those transitions that are not resolved given the spectroscopic resolution of the astronomical observations. Each of these lines consists of two a-type and two b-type transitions (for example, 18*,17 − 17*,16 refers to the following 4 transitions: 181,17−172,16, 182,17 − 172,16, 181,17 − 171,16 and 182,17 − 171,16 that are nearly frequency coincident). The listed Sijμ2 value is the sum of all four transitions in each group. This coincidence is indicated by the asterisk substituted for the Ka quantum number. Uncertainties in parentheses refer to the least significant digit and are 2σ values (type A coverage) (Taylor & Kuyatt 1994).
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