Table 3: Transitions of amino acetonitrile detected toward Sgr B2(N) with the IRAM 30 m telescope.
Na Transition Frequency Unc.b $E_{\rm l}^c$ $S\mu ^2$ $\sigma^d$ Fe $\tau^f$ $I_{{\rm obs}}^g$ $I_{{\rm AAN}}^g$ $I_{{\rm all}}^g$ Comments
    (MHz) (kHz) (K) (D2) (mK)     (K km s-1) (K km s-1) (K km s-1)  
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
1 9 0, 9-8 0, 8 80 947.479 7 16 60 33 1 0.13 0.65(16) 0.38 0.42 no blend
3 9 5, 5-8 5, 4 81 700.966 6 47 41 13 2 0.16 0.92(07) 0.67 0.75 partial blend with U-line
4 9 5, 4-8 5, 3 81 700.967 6 47 41 13 2 - - - - -
5 9 6, 3-8 6, 2 81 702.498 5 60 33 13 2 - - - - -
6 9 6, 4-8 6, 3 81 702.498 5 60 33 13 2 - - - - -
7 9 4, 6-8 4, 5 81 709.838 6 35 48 13 3 0.23 0.39(06) 0.66 0.73 no blend
8 9 7, 2-8 7, 1 81 709.848 6 76 24 13 3 - - - - -
9 9 7, 3-8 7, 2 81 709.848 6 76 24 13 3 - - - - -
10 9 4, 5-8 4, 4 81 710.098 6 35 48 13 3 - - - - -
11 9 3, 7-8 3, 6 81 733.892 6 27 53 13 4 0.11 0.50(06) 0.32 1.46 blend with CH3OCH3 and
                        HCC13CN, v6 = 1
12 9 3, 6-8 3, 5 81 756.174 6 27 53 13 5 0.11 0.39(06) 0.32 0.32 blend with U-line
13 9 2, 7-8 2, 6 82 224.644 7 21 57 19 6 0.12 0.19(08) 0.36 0.35 uncertain baseline
17 10 2, 9-9 2, 8 90 561.332 6 25 64 20 7 0.14 0.64(09) 0.52 1.01 blend with weak
                        C2H5CN, v13 = 1/v21 = 1
18 10 6, 4-9 6, 3 90 783.538 6 64 43 14 8 0.28 1.54(06) 1.05 1.40 partial blend with CH2(OH)CHO and
                        U-line
19 10 6, 5-9 6, 4 90 783.538 6 64 43 14 8 - - - - -
20 10 5, 6-9 5, 5 90 784.281 6 50 50 14 8 - - - - -
21 10 5, 5-9 5, 4 90 784.285 6 50 50 14 8 - - - - -
22 10 7, 3-9 7, 2 90 790.259 6 80 34 14 9 0.09 0.51(06) 0.33 0.56 blend with U-line
23 10 7, 4-9 7, 3 90 790.259 6 80 34 14 9 - - - - -
24 10 4, 7-9 4, 6 90 798.685 6 39 56 14 10 0.21 1.42(06) 0.81 0.95 blend with U-line
25 10 4, 6-9 4, 5 90 799.249 6 39 56 14 10 - - - - -
28 10 3, 8-9 3, 7 90 829.945 6 31 60 14 11 0.13 0.84(06) 0.47 0.51 blend with U-line also in M?
29 10 3, 7-9 3, 6 90 868.038 6 31 60 14 12 0.13 0.49(06) 0.47 0.57 partial blend with U-line
30 10 2, 8-9 2, 7 91 496.108 8 25 64 24 13 0.15 0.86(11) 0.53 0.71 partial blend with CH3CN, v4 = 1 and
                        U-line
32 11 1,11-10 1,10 97 015.224 8 25 72 21 14 0.18 2.05(09) 0.71 1.78 partial blend with C2H5OH and
                        CH3OCHO
47 11 3, 9-10 3, 8 99 928.886 6 35 68 14 15 0.15 1.31(06) 0.66 1.24 partial blend with NH2CN and U-line
48 11 3, 8-10 3, 7 99 990.567 7 35 68 14 16 0.15 0.80(06) 0.66 0.74 no blend
49 11 2, 9-10 2, 8 100 800.876 8 29 71 20 17 0.17 1.38(08) 0.75 1.25 partial blend with CH3CH3CO, v= 0
                        and U-line
50 11 1,10-10 1, 9 101 899.795 8 26 72 34 18 0.18 0.56(14) 0.81 0.88 uncertain baseline
51 12 1,12-11 1,11 105 777.991 8 29 79 43 19 0.20 1.98(18) 0.95 2.88 blend with c-C2H4O and
                        C2H5CN, v= 0
52 12 0,12-11 0,11 107 283.142 8 29 80 24 20 0.21 2.67(10) 1.00 2.01 blend with C2H5OH and U-line
53 12 2,11-11 2,10 108 581.408 7 34 77 20 21 0.19 1.49(08) 0.97 1.94 weak blend with C2H5OH
58 12 5, 8-11 5, 7 108 956.206 6 60 66 29 22 0.26 2.19(11) 1.34 3.44 blend with C2H5OH
59 12 5, 7-11 5, 6 108 956.229 6 60 66 29 22 - - - - -
68 12 3,10-11 3, 9 109 030.225 6 40 75 29 23 0.18 1.67(11) 0.89 1.24 partial blend with HC3N, v4 = 1,
                        C2H5OH, and U-line
71 12 1,11-11 1,10 111 076.901 8 31 79 25 24 0.21 1.16(10) 1.08 1.39 slightly shifted?
72 13 1,13-12 1,12 114 528.654 8 34 86 37 25 0.23 2.49(15) 1.23 1.42 partial blend with U-line
84 1510, 5-1410, 4 136 248.969 10 169 55 28 26 0.09 2.10(10) 0.72 1.03 blend with U-line
85 1510, 6-1410, 5 136 248.969 10 169 55 28 26 - - - - -
89 15 4,11-14 4,10 136 303.599 6 65 93 28 27 0.21 3.99(09) 1.62 4.02 blend with a(CH2OH)2 and CH3C3N
92 15 3,13-14 3,12 136 341.155 6 57 96 28 28 0.24 2.92(10) 1.81 2.22 partial blend with U-line also in M
103 16 5,12-15 5,11 145 325.871 30 83 96 25 29 0.39 2.89(08) 3.30 4.80 uncertain baseline, partial blend
                        with C2H5CN, v13 = 1/v21 = 1
104 16 5,11-15 5,10 145 326.209 30 83 96 25 29 - - - - -
105 1610, 6-1510, 5 145 330.985 40 175 65 25 30 0.11 0.97(07) 0.92 1.02 uncertain baseline
106 1610, 7-1510, 6 145 330.985 40 175 65 25 30 - - - - -
115 16 3,14-15 3,13 145 443.850 30 63 103 25 31 0.25 4.33(08) 2.18 4.68 blend with C2H5CN, v= 0 and
                        U-line
118 16 1,15-15 1,14 147 495.789 6 55 106 31 32 0.29 3.27(11) 2.54 11.47 partial blend with H3C13CN, v8 = 1
139 17 4,13-16 4,12 154 542.406 5 79 107 112 33 0.44 13.25(42) 4.63 5.52 blend with U-line
140 17 3,15-16 3,14 154 544.046 5 70 109 112 33 - - - - -
145 18 7,12-17 7,11 163 454.794 5 127 101 38 34 0.49 10.38(13) 5.32 16.48 partial blend with HC13CCN,
                        v6 = 1 and HCC13CN, v6 = 1
146 18 7,11-17 7,10 163 454.794 5 127 101 38 34 - - - - -
147 18 8,10-17 8, 9 163 456.136 6 146 96 38 34 - - - - -
148 18 8,11-17 8,10 163 456.136 6 146 96 38 34 - - - - -
149 18 9, 9-17 9, 8 163 470.472 8 166 90 38 35 0.41 15.17(14) 5.57 21.97 partial blend with HCC13CN,v7 = 1
150 18 9,10-17 9, 9 163 470.472 8 166 90 38 35 - - - - -
151 18 6,13-17 6,12 163 473.305 5 111 106 38 35 - - - - -
152 18 6,12-17 6,11 163 473.321 5 111 106 38 35 - - - - -
155 1811, 7-1711, 6 163 525.533 11 216 75 38 36 0.49 10.26(13) 5.27 17.96 blend with HC3N, v4 = 1
156 1811, 8-1711, 7 163 525.533 11 216 75 38 36 - - - - -
157 18 5,14-17 5,13 163 526.183 4 97 110 38 36 - - - - -
158 18 5,13-17 5,12 163 527.171 4 97 110 38 36 - - - - -
163 18 4,15-17 4,14 163 635.326 5 86 114 38 37 0.25 4.08(11) 2.82 5.01 partial blend with C3H7CN
164 18 3,16-17 3,15 163 640.468 5 78 116 38 38 0.28 4.65(11) 2.99 6.77 partial blend with C3H7CN
177 19 6,14-18 6,13 172 566.092 50 119 114 44 39 0.38 10.01(14) 4.39 6.43 partial blend with U-line and
                        HCC13CN, v7 = 1
178 19 6,13-18 6,12 172 566.092 50 119 114 44 39 - - - - -
227 23 4,20-22 4,19 209 272.189 6 130 148 58 40 0.26 7.29(29) 4.62 14.85 blend CH3CH3CO, v= 0
237 23 1,22-22 1,21 209 629.913 9 113 152 45 41 0.32 9.03(24) 5.54 30.88 blend with HC13CCN, v7 = 2 and
                        HCC13CN, v7 = 2
247 25 9,16-24 9,15 227 040.487 50 230 145 96 42 0.29 9.58(55) 9.45 35.33 partial blend with CN absorption
                        and CH3CH3CO, $v_{{\rm t}}$ = 1
248 25 9,17-24 9,16 227 040.487 50 230 145 96 42 - - - - -
249 25 8,18-24 8,17 227 045.287 50 210 149 96 42 - - - - -
250 25 8,17-24 8,16 227 045.287 50 210 149 96 42 - - - - -
251 2510,15-2410,14 227 055.944 50 254 139 96 43 0.15 -0.64(44) 3.29 3.62 partial blend with CN absorption
252 2510,16-2410,15 227 055.944 50 254 139 96 43 - - - - -
253 25 7,19-24 7,18 227 079.847 50 191 153 96 44 0.32 10.94(44) 7.16 57.69 blend with CH2CH13CN and
                        CH3OH, v= 0
254 25 7,18-24 7,17 227 079.847 50 191 153 96 44 - - - - -
273 25 2,23-24 2,22 231 485.527 50 138 165 40 45 0.30 12.73(19) 6.27 6.60 blend with U-line?
292 26 6,21-25 6,20 236 269.491 60 186 163 37 46 0.36 15.53(18) 8.02 14.17 partial blend with t-C2H5OCHO
                        and U-line
293 26 6,20-25 6,19 236 270.459 60 186 163 37 46 - - - - -
306 28 0,28-27 0,27 244 765.968 21 160 186 39 47 0.28 9.56(19) 6.62 10.35 blend with CH313CH2CN, v= 0
                        and U-line
322 27 6,22-26 6,21 245 378.722 10 197 170 72 48 0.35 16.69(36) 8.29 22.21 blend with 13CH3CH2CN, v= 0?
323 27 6,21-26 6,20 245 380.146 10 197 170 72 48 - - - - -
368 29 9,20-28 9,19 263 364.923 22 277 174 74 49 0.26 6.72(37) 8.51 9.17 baseline problem?, blend with
                        U-line
369 29 9,21-28 9,20 263 364.923 22 277 174 74 49 - - - - -
370 2910,19-2810,18 263 368.355 26 300 170 74 49 - - - - -
371 2910,20-2810,19 263 368.355 26 300 170 74 49 - - - - -
384 29 6,24-28 6,23 263 604.573 12 221 184 74 50 0.28 10.29(36) 8.81 14.22 baseline problem?, partial blend
                        with CH3CH3CO, $v_{{\rm t}}$ = 1 and
                        CH3OCH3
385 29 6,23-28 6,22 263 607.689 12 221 184 74 50 - - - - -
398 29 4,26-28 4,25 264 055.836 13 197 189 108 51 0.22 18.36(49) 5.92 14.22 partial blend with C2H5CN, v= 0
                        and CH3CH3CO, v= 0
Notes: a Numbering of the observed transitions with $S\mu ^2$ > 20 D2 (see Table 2). b Frequency uncertainty. c Lower energy level in temperature units ( $E_{\rm l}/$$k_{\rm B}$). d Calculated rms noise level in $T_{{\rm mb}}$ scale. e Numbering of the observed features. f Peak opacity of the amino acetonitrile modeled feature. g Integrated intensity in $T_{{\rm mb}}$ scale for the observed spectrum (Col. 10), the amino acetonitrile model (Col. 11), and the model including all molecules (Col. 12). The uncertainty in Col. 10 is given in parentheses in units of the last digit.


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