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Home All issues Volume 705 (January 2026) A&A, 705 (2026) A206 Full HTML
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Table A.1

Line parameters obtained from Gaussian fits of the detected lines in TMC-1.

Species TransitionJKu,ku−JKl′,kl′′${J_{{K_u},{k_u}}} - J_{K_l^\prime ,k_l^\prime }^\prime $ Rest Frequency (MHz) Eup (K) Aul (s-1) vLSR (km s-1) δv (km s-1) ∫TA⋆dv(mK km s−1)$\int {T_{\rm{A}}^ \star } {\rm{dv}}\left( {{\rm{mK}}{\rm{km}}{{\rm{s}}^{ - 1}}} \right)$ TA⋆(mK)$T_{\rm{A}}^ \star ({\rm{mK}})$
l-H2C3Oa 40,4-30,3 34579.37 4.3 9.9×e(-7) 5.96±0.24 1.10±0.09 0.66±0.20 0.6
l-H2C3Ob 50,5-40,4 43223.30 6.4 1.9×e(-6) 5.86±0.09 0.54±0.09 0.25±0.08 0.4
o-c-H2C3Oc 61,5-61,6 32255.60 14.3 1.8×e(-7) - - - -
o-c-H2C3O 31,3-21,2 39956.73 3.2 5.4×e(-6) 5.78±0.03 0.70±0.04 14.70±0.5 19.7
o-c-H2C3O 31,2-21,1 44587.39 3.6 7.5×e(-6) 5.79±0.03 0.73±0.07 13.6±0.2 17.5
o-c-H2C3O 51,4-41,3 74052.80 10.0 3.9×e(-5) 5.82±0.05 0.58±0.15 14.58±0.3 23.6
o-c-H2C3O 61,6-51,5 79483.51 12.8 5.0×e(-5) 5.82±0.04 0.49±0.08 6.20±0.5 11.0
o-c-H2C3O 61,5-51,4 88633.53 14.3 6.9×e(-5) 5.80±0.04 0.50±0.11 6.90±0.5 13.0
o-c-H2C3O 71,7-61,6 92517.42 17.2 8.1×e(-5) 5.78±0.03 0.79±0.06 5.10±0.6 6.1
p-c-H2C3O 30,3-20,2 42031.93 4.0 7.1×e(-6) 5.78±0.06 0.65±0.02 6.34±0.07 9.0
p-c-H2C3O 32,2-22,1 42316.18 8.9 4.0×e(-6) 5.77±0.03 0.69±0.07 1.66±0.09 2.2
p-c-H2C3O 32,1 -22,0 42601.24 8.9 4.1×e(-6) 5.82±0.03 0.74±0.09 2.23±0.04 2.8
c-HDC3O 31,3-21,2 37833.72 4.7 4.6×e(-6) 5.79±0.06 0.82±0.15 0.67±0.15 0.7
c-HDC3Od 30,3-20,2 39924.24 3.8 6.1×e(-6) - - - -
c-HDC3O* 32,2-22,1 40278.65 8.0 3.5×e(-6) - - - -
c-HDC3Oc 32,1 -22,0 40633.72 8.0 3.5×e(-6) - - - -
c-HDC3O 31,2-21,1 42612.90 5.1 6.6×e(-6) 5.80±0.09 0.90±0.22 0.52±0.28 0.6
c-H213CCCO* 31,3-21,2 39296.64 4.9 5.2×e(-6) - - - -
c-H213CCCO 30,3-20,2 41355.47 4.0 6.8×e(-6) 5.31±0.12 0.85±0.25 0.49±0.17 0.5
c-H213CCCO* 32,2-22,1 41645.70 8.6 3.8×e(-6) - - - -
c-H213CCCO* 32,1 -22,0 41936.71 8.7 3.9×e(-6) - - - -
c-H213CCCO 31,2-21,1 43904.55 5.4 7.2×e(-6) 5.85±0.10 0.81±0.15 0.44±0.18 0.5
c-H2CC13CO 61,5-51,4 88543.94 14.3 6.9×e(-5) 5.84±0.07 0.52±0.14 3.51±1.0 6.2
o-H2C3S 71,7-61,6 35300.94 6.5 9.9×e(-7) 5.79±0.06 0.76±0.01 3.44±0.4 4.2
o-H2C3S 71,6-61,5 35466.11 6.6 1.0×e(-6) 5.83±0.08 0.77±0.02 3.37±0.2 4.1
o-H2C3S 81,8-71,7 40343.85 8.5 1.5×e(-6) 5.85±0.09 0.68±0.02 3.33±0.2 4.5
o-H2C3S 81,7-71,6 40532.61 8.5 1.5×e(-6) 5.92±0.06 0.69±0.03 3.69±0.5 5.0
o-H2C3S 91,9-81,8 45386.72 10.6 2.2×e(-6) 5.87±0.04 0.75±0.03 3.52±0.7 4.1
o-H2C3S 91,8-81,7 45599.08 10.7 2.2×e(-6) 5.96±0.02 0.60±0.02 2.88±0.3 4.4
o-H2C3S 101,10-91,9 50429.58 13.1 3.0×e(-6) 5.89±0.03 0.61±0.09 2.60±0.5 4.0
p-H2C3S 70,7-60,6 35384.41 6.8 1.0×e(-6) 5.74±0.02 0.69±0.05 1.31±0.08 1.7
p-H2C3S 80,8-70,7 40439.22 8.7 1.5×e(-6) 5.74±0.02 0.65±0.06 1.45±0.07 2.1
p-H2C3S 90,9-80,8 45944.00 10.9 2.2×e(-6) 5.86±0.05 0.58±0.09 1.32±0.08 2.1
o-c-H2C3S 41,3-31,2 31704.35 3.4 3.2×e(-6) 5.80±0.02 0.80±0.05 1.72±0.05 2.0
o-c-H2C3S 51,5-41,4 37304.21 5.0 5.5×e(-6) 5.77±0.01 0.75±0.03 1.76±0.05 2.2
o-c-H2C3Se 53,3-43,2 38504.33 16.1 4.0×e(-6) 5.80±0.01 0.80±0.04 0.46±0.03 0.5
o-c-H2C3Se 53,2-43,1 38505.25 16.1 4.0×e(-6) 5.92±0.04 0.69±0.04 0.37±0.03 0.5
o-c-H2C3S 51,4-41,3 39619.37 5.3 6.5×e(-6) 5.76±0.02 0.75±0.04 1.54±0.06 1.9
o-c-H2C3S 61,6-51,5 44749.94 7.2 9.7×e(-6) 5.83±0.03 0.62±0.05 1.12±0.05 1.7
o-c-H2C3S 61,5-51,4 47526.74 7.6 1.1×e(-5) 5.80±0.03 0.55±0.07 1.16±0.04 1.9
p-c-H2C3Sf 50,5-40,4 38373.30 5.5 6.2×e(-6) - - - -
p-c-H2C3S 52,4-42,3 38473.50 11.0 5.2×e(-6) 5.85±0.10 0.82±0.30 0.22±0.06 0.3
p-c-H2C3S 52,3-42,2 38587.05 11.0 5.3×e(-6) 5.64±0.08 0.52±0.21 0.19±0.04 0.3
p-c-H2C3S 60,6-50,5 45985.84 7.7 1.1×e(-5) 5.87±0.05 0.82±0.10 1.02±0.03 1.5
p-c-H2C3Sc 62,5 -52,4 46157.64 13.2 9.8×e(-6) - - - -
p-c-H2C3S* 62,4-52,3 46355.86 13.2 9.9×e(-6) - - - -
HCCCHO 41,4-31,3 36648.27 7.4 1.3×e(-6) 5.80±0.08 0.73±0.02 6.4±0.3 8.3
HCCCHO 100,10-91,9 36693.06 4.5 2.8×e(-7) 5.93±0.10 1.10±0.22 0.52±0.02 0.4
HCCCHOc 40,4-30,3 37290.15 4.5 1.4×e(-6) - - - -
HCCCHO 41,3-31,2 37954.60 7.6 1.4×e(-6) 5.79±0.04 0.81±0.08 9.4±0.1 10.9
HCCCHO 51,5-41,4 45807.71 9.6 2.7×e(-6) 5.81±0.05 0.71±0.01 6.6±0.3 8.8
HCCCHOc 50,5 -40,4 46602.89 6.7 2.9×e(-6) - - - -
HCCCHO 51,4-41,3 47440.46 9.9 3.0×e(-6) 5.79±0.04 0.67±0.01 8.1±0.4 11.4
HCCCHO 80,8 -70,7 74496.68 16.1 1.2×e(-5) 5.89±0.06 0.58±0.09 14.9±0.7 24.0
HCCCHO 21,2-10,1 81525.87 4.4 4.0×e(-6) 5.75±0.02 0.58±0.05 4.6±0.3 7.4
HCCCHO 90,9-80,8 83775.84 20.1 1.8×e(-5) 5.80±0.02 0.49±0.03 7.1±0.5 13.5
HCCCHO 31,3-20,2 90362.99 5.7 5.2×e(-6) 5.77±0.06 0.68±0.09 6.9±0.5 9.5
HCCCHO 100,10-90,9 93043.31 24.6 2.4×e(-5) 5.80±0.02 0.58±0.05 3.8±0.4 6.1
HCCCHO 41,4-30,3 99039.14 7.4 6.7×e(-6) 5.70±0.02 0.51±0.04 5.5±0.1 10.2
H13CCCHO 40,4-30,3 36099.33 4.3 1.3×e(-6) 5.70±0.08 0.82±0.17 0.45±0.03 0.52
HC13CCHO 40,4-30,3 37113.26 4.5 1.4×e(-6) 5.60±0.09 0.98±0.08 0.41±0.02 0.40

Note: (∗)Not detected. (a)Transition 40,4,1-30,3,1 from o-H2C3O is merged with p-H2C3O (40,4,0-30,3,0) since they both have the same emission frequency. (b)Transition 50,5,1-40,4,1 from o-H2C3O is merged with p-H2C3O (50,5,0-40,4,0) since they both have the same emission frequency. (c)Blended with an unidentified (U) line. (d)Blended with p-CH2CN. (e) Blended with the hfs of H13CCNC. (f)Blended with C6D.

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