Table 1
Line parameters for the observed transitions of HCN and H13CN.
| Level | ℓ | ΔJ | ν | E up | Δv |
|
| ν1 ν2 ν3 | (MHz) | (K) | (km s-1) | (K km s-1) | ||
|
|
||||||
| HCN | ||||||
| 010 | l | 19–19 | 84919.2 | 1834 | 7.3(13) | 0.066(9) |
| 010 | l | 20–20 | 93813.8 | 1919 | 7.9(16) | 0.12(2) |
| 010 | l | 21–21 | 103144.3 | 2009 | 12.4(15) | 0.12(1) |
| 000 | 0 | 1–0 | 88631.6 | 4 | ..... | 427.3(10)b |
| 100 | 0 | 1–0 | 88006.6 | 4769 | 11.4(20) | 0.13(2) |
| 001 | 0 | 1–0 | 88027.2 | 3021 | 12.3(10) | 0.21(2) |
| 020 | 0 | 1–0 | 89087.7 | 2035 | 14.1(3) | 2.20(02) |
| 040 | 0 | 1–0 | 89569.4 | 4037 | 10.3(20) | 0.065(9) |
| 021 | 0 | 1–0 | 88468.1 | 6011 | 8.3(10) | 0.049(7) |
| 120 | 0 | 1–0 | 88488.7 | 6744 | 11.3(15) | 0.032(7) |
| 200 | 0 | 1–0 | 87363.6 | 9384 | 6.0(15) | 0.027(6) |
| 000 | 0 | 3–2 | 265886.4 | 26 | ...... | 972.0(10)b |
| 010 | –1 | 3–2 | 265852.7 | 1048 | 17.9(5) | 75.10(20) |
| 010 | +1 | 3–2 | 267199.3 | 1048 | 19.2(8) | 68.80(20) |
| 020 | 0 | 3–2 | 267243.2 | 2056 | 14.0(15) | 9.5(20)c |
| 020 | –2 | 3–2 | 267109.1 | 2078 | 16.5(8) | 3.82(40) |
| 020 | +2 | 3–2 | 267120.1 | 2078 | 13.4(8) | 3.61(40) |
| 030 | –1 | 3–2 | 266539.9 | 3064 | 9.7(10) | 2.72(20) |
| 030 | +1 | 3–2 | 269312.8 | 3064 | 12.1(10) | 1.66(10) |
| 001 | 0 | 3–2 | 264073.3 | 3042 | 14.5(5) | 4.68(15) |
| 040 | 0 | 3–2 | 268663.3 | 4059 | 9.3(2) | 1.16(5) |
| 040 | –2 | 3–2 | 268545.8 | 4081 | 11.6(8) | 0.96(5) |
| 040 | +2 | 3–2 | 268580.5 | 4081 | 12.7(15) | 1.28(15)e |
| 011 | –1 | 3–2 | 264019.8 | 4060 | 14.3(20) | 0.69(15) |
| 011 | +1 | 3–2 | 265364.4 | 4060 | 10.2(8) | 0.86(4) |
| 100 | 0 | 3–2 | 264011.6 | 4790 | 9.1(15) | 1.1(2)d,e |
| 050 | –1 | 3–2 | 267264.0 | 5052 | 5.4(4) | 0.47(4) |
| 050 | +1 | 3–2 | 271550.8 | 5053 | 7.4(2) | 0.73(3) |
| 021 | 0 | 3–2 | 265384.3 | 5064 | 8.6(10) | 0.38(3) |
| 021 | –2 | 3–2 | 265252.9 | 5086 | 9.5(7) | 0.36(2) |
| 021 | +2 | 3–2 | 265264.0 | 5086 | 7.8(7) | 0.37(2) |
| 110 | –1 | 3–2 | 264005.0 | 5782 | 8.0(20) | 0.59(9)d,e |
| 110 | +1 | 3–2 | 265373.0 | 5782 | 6.3(5) | 0.27(4) |
| 002 | 0 | 3–2 | 262249.6 | 6030 | 9.9(20) | 0.35(9)e |
| 060 | 0 | 3–2 | 270159.9 | 6032 | 8.0(10) | 0.20(2) |
| 060 | –2 | 3–2 | 270071.7 | 6055 | 9.5(8) | 0.27(2) |
| 060 | +2 | 3–2 | 270144.7 | 6055 | 8.0(8) | 0.25(2) |
| 031 | –1 | 3–2 | 264663.4 | 6068 | 7.5(9) | 0.44(7)e |
| 031 | +1 | 3–2 | 267423.4 | 6068 | 7.0(6) | 0.30(2)e |
| 120 | 0 | 3–2 | 265445.9 | 6765 | 6.1(10) | 0.14(4) |
| 120 | –2 | 3–2 | 265310.2 | 6787 | 8.6(8) | 0.18(3) |
| 120 | +2 | 3–2 | 265321.7 | 6787 | 7.3(8) | 0.18(3) |
| 070 | –1 | 3–2 | 268034.2 | 7012 | 7.5(9) | 0.15(2) |
| 012 | –1 | 3–2 | 262174.4 | 7042 | 4.8(7) | 0.10(2) |
| 012 | +1 | 3–2 | 263518.1 | 7042 | ..... | 0.14(5)f |
| 041 | –2 | 3–2 | 266638.8 | 7080 | 6.5(10) | 0.13(2) |
| 041 | +2 | 3–2 | 266673.8 | 7080 | 6.5(10) | 0.13(2) |
| 130 | –1 | 3–2 | 264755.6 | 7743 | 8.2(10) | 0.18(4) |
| 130 | +1 | 3–2 | 267579.7 | 7744 | 6.2(7) | 0.23(3) |
| 080 | 0 | 3–2 | 271748.4 | 7977 | 6.1(10) | 0.20(5) |
| 080 | –2 | 3–2 | 271704.0 | 7999 | 6.2(9) | 0.16(4) |
| 080 | +2 | 3–2 | 271832.0 | 7999 | 5.8(10) | 0.11(3) |
| 022 | 0 | 3–2 | 263514.5 | 8042 | 6.0(20) | 0.12(5)f,g |
| 022 | –2 | 3–2 | 263386.7 | 8063 | 5.0(12) | 0.09(2) |
| 022 | –2 | 3–2 | 263398.2 | 8063 | 7.0(12) | 0.17(3) |
| 051 | –1 | 3–2 | 265347.8 | 8048 | 7.7(10) | 0.10(2) |
| 003 | 0 | 3–2 | 260415.7 | 8987 | 5.0(15) | 0.06(3) |
| 032 | –1 | 3–2 | 262777.4 | 9039 | 4.6(10) | 0.08(2) |
| 032 | +1 | 3–2 | 265521.1 | 9039 | 6.6(6) | 0.13(2) |
| 121 | +2 | 3–2 | 263505.9 | 9774 | 4.5(10) | 0.04(1) |
| 121 | 0 | 3–2 | 263632.1 | 9753 | 4.1(10) | 0.03(1) |
| 013 | –1 | 3–2 | 260319.3 | 9996 | 5.1(7) | 0.13(4) |
| 131 | –1 | 3–2 | 262910.9 | 10727 | 7.0(20) | 0.07(3) |
|
|
||||||
| H13CN | ||||||
| 000 | 0 | 1–0 | 86339.9 | 4 | ..... | 190.2(3) |
| 020 | 0 | 1–0 | 86747.7 | 2018 | 12.0(20) | 0.09(2) |
| 000 | 0 | 3–2 | 259011.8 | 25 | ..... | 429.6(9)b |
| 010 | –1 | 3–2 | 258936.1 | 1039 | 17.4(8) | 3.74(9) |
| 010 | +1 | 3–2 | 260224.8 | 1039 | 18.9(5) | 6.45(10) |
| 020 | –2 | 3–2 | 260094.0 | 2060 | 10.0(30) | 0.18(1)e |
| 020 | +2 | 3–2 | 260104.2 | 2060 | 10.0(30) | 0.18(1)e |
| 030 | –1 | 3–2 | 259508.1 | 3039 | 7.8(15) | 0.12(2) |
Notes. Number in parentheses are 1σ uncertainties in units of the last digits. a) The notation n1ν1 + n2ν2 + n3ν3ℓ is adopted for the labeling of the vibrational levels (121 +2 means ν1 + 2ν2 + ν3ℓ = + 2). b) Line is self-absorbed in the blue part of the profile. c) Blended with 29SiS J = 15–14 (see text). d) Velocity fixed to − 26.5 km s-1. e) Blended with another line. f) Contaminated by Si34S v = 1 J = 15–14. Intensity has been estimated by removing the expected contribution of this molecule (0.35 K km s-1). g) Blended with HCN 012 ℓ = + 1.
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