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Table 1

CH2OHCHO, aGg-(CH2OH)2 and CH3OCHO transitions observed toward NGC 1333 IRAS2A.

Species Transition Frequency Eup Aij gup Flux RDa
(MHz) (K) (s-1) (Jy km s-1)

CH2OHCHO 1310,3–139,4 (ν= 0) 240 366.34 111.3 1.2 × 10-4 27 0.055 Y
1310,4–139,5 (ν= 0) 240 366.34 111.3 1.2 × 10-4 27
CH2OHCHO 1210,2–129,3 (ν= 0) 240 482.78 104.0 1.0 × 10-4 25 0.038 Y
1210,3–129,4 (ν= 0) 240 482.78 104.0 1.0 × 10-4 25
CH2OHCHO 115,6–104,7 (ν= 0) 240 890.46 51.9 1.8 × 10-4 23 0.663 Nb
CH2OHCHO 222,20–213,19 (ν= 0) 241 131.84 142.8 2.8 × 10-4 45 0.061 Y
CH2OHCHO 232,22–221,21 (ν= 0) 242 239.09 146.2 3.5 × 10-4 47 0.128 Y
CH2OHCHO 240,24–231,23 (ν= 0) 242 957.72 148.2 4.2 × 10-4 49 0.258 Y
241,24–230,23 (ν= 0) 242 957.98 148.2 4.2 × 10-4 49
CH2OHCHO 1913,7–1912,8 (ν= 0) 315 941.48 208.1 3.2 × 10-4 39 0.074 Y
1913,6–1912,7 (ν= 0) 315 941.48 208.1 3.2 × 10-4 39
CH2OHCHO 118,4–107,3 (ν= 0) 317 013.88 75.5 6.6 × 10-4 23 0.363 Yc
118,3–107,4 (ν= 0) 317 013.90 75.5 6.6 × 10-4 23
CH2OHCHO 275,23–264,22 (ν= 0) 317 850.44 226.2 4.5 × 10-4 55 0.117 Yc

aGg-(CH2OH)2 216,16 (ν= 1)–206,15 (ν= 0) 223 741.66 132.0 2.5 × 10-4 387 0.212 Y
aGg-(CH2OH)2 216,15 (ν= 1)–206,14 (ν= 0) 224 405.85 132.1 2.5 × 10-4 301 0.197 Y
aGg-(CH2OH)2 240,24 (ν= 1)–231,23 (ν= 0) 224 511.70 136.8 5.4 × 10-5 441 0.145 N
241,24 (ν= 1)–230,23 (ν= 0) 224 512.74 136.8 5.4 × 10-5 343
aGg-(CH2OH)2 213,18 (ν= 1)–203,17 (ν= 0) 225 688.94 121.3 2.4 × 10-4 301 0.195 Y
aGg-(CH2OH)2 223,20 (ν= 1)–213,19 (ν= 0) 225 929.69 127.8 2.5 × 10-4 315 0.349 Nc
aGg-(CH2OH)2 225,17 (ν= 0)–215,16 (ν= 1) 226 095.96 138.2 2.6 × 10-4 315 0.303 N
aGg-(CH2OH)2 222,20 (ν= 1)–212,19 (ν= 0) 226 561.99 127.7 3.0 × 10-4 405 0.329 Y
aGg-(CH2OH)2 251,25 (ν= 0)–241,24 (ν= 1) 226 643.30 147.7 2.9 × 10-4 357 0.470 Y
250,25 (ν= 0)–240,24 (ν= 1) 226 643.46 147.7 2.9 × 10-4 459
aGg-(CH2OH)2 251,25 (ν= 1)–241,24 (ν= 0) 240 778.12 148.0 3.4 × 10-4 459 0.360 Y
250,25 (ν= 1)–240,24 (ν= 0) 240 778.30 148.0 3.4 × 10-4 357
aGg-(CH2OH)2 248,17 (ν= 0)–238,16 (ν= 1) 240 807.88 179.2 3.0 × 10-4 441 0.340 Ne
aGg-(CH2OH)2 248,16 (ν= 0)–238,15 (ν= 1) 240 828.89 179.2 3.0 × 10-4 343 0.149 Y
aGg-(CH2OH)2 245,20 (ν= 0)–235,19 (ν= 1) 241 291.27 160.7 3.1 × 10-4 441 0.196 Y
aGg-(CH2OH)2 247,18 (ν= 0)–237,17 (ν= 1) 241 545.26 172.1 3.1 × 10-4 441 0.151 Y
aGg-(CH2OH)2 246,19 (ν= 0)–236,18 (ν= 1) 241 860.73 166.0 2.8 × 10-4 441 0.137 Y
aGg-(CH2OH)2 2315,8 (ν= 1)–2215,7 (ν= 0) 242 244.69 246.4 2.0 × 10-4 329 0.474 N
2315,9 (ν= 1)–2215,8 (ν= 0) 242 244.69 246.4 2.0 × 10-4 423
236,17 (ν= 1)–226,17 (ν= 1) 242 245.62 154.6 1.1 × 10-5 329
2314,9 (ν= 1)–2214,8 (ν= 0) 242 246.34 232.2 2.2 × 10-4 329
2314,10 (ν= 1)–2214,9 (ν= 0) 242 246.34 232.2 2.2 × 10-4 423
aGg-(CH2OH)2 2313,10 (ν= 1)–2213,9 (ν= 0) 242 277.72 218.9 2.4 × 10-4 329 0.275 N
2313,11 (ν= 1)–2213,10 (ν= 0) 242 277.72 218.9 2.4 × 10-4 423
aGg-(CH2OH)2 2310,14 (ν= 1)–2210,13 (ν= 0) 242 656.22 185.2 2.8 × 10-4 423 0.305 Y
2310,13 (ν= 1)–2210,12 (ν= 0) 242 656.24 185.2 2.8 × 10-4 329
aGg-(CH2OH)2 239,15 (ν= 1)–229,14 (ν= 0) 242 947.99 175.9 3.0 × 10-4 423 0.291 Y
239,14 (ν= 1)–229,13 (ν= 0) 242 948.59 175.9 3.0 × 10-4 329
aGg-(CH2OH)2 235,19 (ν= 1)–225,18 (ν= 0) 243 636.57 149.1 3.4 × 10-4 423 0.287 Y
aGg-(CH2OH)2 318,23 (ν= 0)–308,22 (ν= 1) 315 671.33 276.6 7.0 × 10-4 567 0.314 Nc
aGg-(CH2OH)2 317,25 (ν= 0)–307,24 (ν= 1) 315 892.11 269.6 6.8 × 10-4 441 0.144 Nd
aGg-(CH2OH)2 309,21 (ν= 1)–299,20 (ν= 0) 315 961.89 269.4 7.0 × 10-4 549 0.259 Y
aGg-(CH2OH)2 341,34 (ν= 0)–330,33 (ν= 0) 316 444.07 268.5 1.6 × 10-4 621 0.078 Y
340,34 (ν= 0)–331,33 (ν= 0) 316 444.07 268.5 1.6 × 10-4 483
aGg-(CH2OH)2 206,14 (ν= 0)–195,15 (ν= 0) 316 698.08 121.3 5.1 × 10-5 287 0.029 Y
aGg-(CH2OH)2 307,24 (ν= 1)–297,23 (ν= 0) 316 868.23 254.4 6.9 × 10-4 427 0.445 Nc
2016,4 (ν= 0)–2015,5 (ν= 0) 316 870.92 228.9 3.8 × 10-5 287
2016,5 (ν= 0)–2015,6 (ν= 0) 316 870.92 228.9 3.8 × 10-5 369
aGg-(CH2OH)2 308,23 (ν= 1)–298,22 (ν= 0) 316 917.19 261.4 7.2 × 10-4 427 0.299 Y
aGg-(CH2OH)2 168,9 (ν= 1)–157,8 (ν= 1) 317 054.30 98.6 8.0 × 10-5 231 0.116 N
168,8 (ν= 1)–157,9 (ν= 1) 317 055.36 98.6 8.0 × 10-5 297
aGg-(CH2OH)2 214,18 (ν= 1)–204,18(ν= 0) 317 267.77 122.1 1.1 × 10-5 387 0.312 N
149,5 (ν= 1)–138,6 (ν= 1) 317 267.91 91.4 1.1 × 10-4 261
149,6 (ν= 1)–138,5 (ν= 1) 317 267.91 91.4 1.1 × 10-4 203
149,5 (ν= 0)–138,6 (ν= 0) 317 268.88 91.4 1.1 × 10-4 203
149,6 (ν= 0)–138,5 (ν= 0) 317 268.88 91.4 1.1 × 10-4 261
aGg-(CH2OH)2 323,30 (ν= 1)–313,29 (ν= 0) 317 962.58 257.2 7.8 × 10-4 455 0.310 Y
aGg-(CH2OH)2 324,28 (ν= 0)–314,27 (ν= 1) 317 982.56 272.2 4.8 × 10-4 455 0.160 Y
aGg-(CH2OH)2 350,35 (ν= 0)–340,34 (ν= 1) 318 433.40 284.1 8.0 × 10-4 639 0.639 N
351,35 (ν= 0)–341,34 (ν= 1) 318 433.40 284.1 8.0 × 10-4 497

CH3OCHO 73,4–63,3 E (νT = 0) 87 143.28 22.6 7.7 × 10-6 30 0.049 N
215,16–214,17 E (νT = 1) 87 143.65 342.0 1.4 × 10-6 86
CH3OCHO 80,8–71,7 E (νT = 1) 87 160.84 207.0 1.3 × 10-6 34 0.038 N
73,4–63,3 A (νT = 0) 87 161.28 22.6 7.8 × 10-6 30
CH3OCHO 186,13–176,12 E (νT = 0) 224 021.87 125.3 1.5 × 10-4 74 0.752 Y
186,13–176,12 A (νT = 0) 224 024.10 125.3 1.5 × 10-4 74
CH3OCHO 185,14–175,13 E (νT = 0) 224 313.15 118.3 1.6 × 10-4 74 0.351 Y
CH3OCHO 193,17–183,16 E (νT = 1) 224 491.31 303.2 1.7 × 10-4 78 0.212 Y
CH3OCHO 186,12–186,11 E (νT = 0) 224 582.35 125.4 1.5 × 10-4 74 0.463 Y
CH3OCHO 186,12–176,11 A (νT = 0) 224 609.38 125.4 1.5 × 10-4 74 0.466 Y
CH3OCHO 202,19–192,18 A (νT = 1) 225 372.22 307.3 1.7 × 10-4 82 0.186 Y
CH3OCHO 193,17–183,16 E (νT = 0) 225 608.82 116.7 1.7 × 10-4 78 0.426 Y
CH3OCHO 185,13–175,12 A (νT = 1) 225 648.42 305.6 1.6 × 10-4 74 0.163 N
269,18–268,19 A (νT = 0) 225 648.42 261.7 1.6 × 10-5 106
CH3OCHO 210,21–201,20 A (νT = 1) 226 381.36 309.6 2.8 × 10-5 86 0.277 Y
211,21–201,20 A (νT = 1) 226 382.72 309.6 1.7 × 10-4 86
210,21–200,20 A (νT = 1) 226 383.86 309.6 1.7 × 10-4 86
211,21–200,20 A (νT = 1) 226 385.15 309.6 2.8 × 10-5 86
CH3OCHO 210,21–201,20 E (νT = 1) 226 433.26 308.9 2.7 × 10-5 86 0.296 N
211,21–201,20 E (νT = 1) 226 434.47 308.9 1.7 × 10-4 86
210,21–200,20 E (νT = 1) 226 435.52 308.9 1.7 × 10-4 86
259,16–258,17 A (νT = 0) 226 435.52 246.2 1.6 × 10-5 102
211,21–200,20 E (νT = 1) 226 436.66 308.9 2.7 × 10-5 86
CH3OCHO 202,19–192,18 A (νT = 0) 226 718.69 120.2 1.7 × 10-4 82 0.505 Y
CH3OCHO 192,17–182,16 E (νT = 0) 227 019.55 116.6 1.7 × 10-4 78 0.561 N
259,17–258,18 A (νT = 0) 227 021.13 246.2 1.6 × 10-5 102
CH3OCHO 192,17–182,16 A (νT = 0) 227 028.12 116.6 1.7 × 10-4 78 0.436 Y
CH3OCHO 204,17–194,16 A (νT = 1) 242 610.07 321.7 2.1 × 10-4 82 0.092 Y
CH3OCHO 377,31–376,32 A (νT = 0) 242 870.39 452.0 1.8 × 10-5 150 0.714 N
195,14–185,13 E (νT = 0) 242 871.57 130.5 2.0 × 10-4 78
CH3OCHO 195,14–185,13 A (νT = 0) 242 896.02 130.4 2.0 × 10-4 78 0.666 Y
CH3OCHO 2112,9–2111,10 E (νT = 0) 316 742.00 231.8 3.3 × 10-5 86 0.072 Y
2112,10–2111,11 E (νT = 0) 316 742.71 231.8 3.3 × 10-5 86
CH3OCHO 2112,9–2111,10 A (νT = 0) 316 776.74 231.8 3.3 × 10-5 86 0.069 Y
2112,10–2111,11 A (νT = 0) 316 776.74 231.8 3.3 × 10-5 86
CH3OCHO 2613,13–2513,12 E (νT = 1) 317 177.16 506.5 3.6 × 10-4 106 0.043 Y
CH3OCHO 98,2–87,1 A (νT = 1) 318 009.06 256.8 6.8 × 10-5 38 0.200 N
98,1–87,2 A (νT = 1) 318 009.06 256.8 6.9 × 10-5 38
1312,1–1311,2 E (νT = 0) 318 009.55 149.2 1.3 × 10-5 54
2613,13–2513,12 A (νT = 1) 318 012.17 506.2 3.7 × 10-4 106
2613,14–2513,13 A (νT = 1) 318 012.17 506.2 3.7 × 10-4 106
CH3OCHO 1312,2–1311,3 E (νT = 0) 318 016.90 149.2 1.3 × 10-5 54 0.155 N
98,1–87,1 E (νT = 0) 318 017.37 69.0 6.7 × 10-5 38
CH3OCHO 1212,0–1211,1 E (νT = 0) 318 064.54 141.6 7.0 × 10-6 50 0.204 N
98,2–87,1 A (νT = 0) 318 065.26 69.0 6.8 × 10-5 38
98,1–87,2 A (νT = 0) 318 065.26 69.0 6.8 × 10-5 38
CH3OCHO 274,23–265,22 E (νT = 1) 318 139.11 426.4 3.4 × 10-5 110 0.192 N
256,19–246,18 A (νT = 1) 318 140.72 405.1 4.6 × 10-4 102
2611,15–2511,14 E (νT = 1) 318 145.25 474.5 4.0 × 10-4 106
CH3OCHO 274,24–264,23 E (νT = 1) 318 979.14 417.8 4.8 × 10-4 110 0.208 Y

Notes. The asterisk present after some frequency values indicates that the associated transition is blended with one or more transitions from the same species.

(a)

Y indicates that the line was considered in the rotational diagram analysis, while N indicates that it could not be used (for blending reasons).

(b)

Blended with an unidentified species.

(c)

Blended with CH3OCHO.

(d)

Blended with CH2OHCHO.

(e)

Potentially blended with the gGg conformer of ethylene glycol.

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