Open Access

Table 3.

Significant emission lines detected with NICE.

Structure ID RA Dec νobs Line Sline WidthFWZI S/N Pchance(a)
[deg] [deg] [GHz] [Jy km/s] [km/s]
HPC1001 150.4659 2.6362 99.957 CO(4–3) 1.03 ± 0.09 1824 ± 167 10.9 < 0.001
HPC1001 1272853 150.4618 2.6294 100.004 CO(4–3) 0.38 ± 0.08 1036 ± 266 3.9 0.001 (b)
HPC1001 1274387 150.4647 2.6307 100.130 CO(4–3) 0.36 ± 0.08 1288 ± 300 4.3 0.019 (b)

COS-SBCX3 1088787 150.3105 2.4515 85.803 CO(3–2) 0.90 ± 0.08 571 ± 49 11.6 < 0.001
COS-SBCX3 1088927 150.3117 2.4510 85.768 CO(3–2) 0.62 ± 0.07 428 ± 45 9.5 < 0.001

COS-SBCX4 1050531 150.7504 2.4129 94.805 CO(3–2) 1.71 ± 0.06 653 ± 27 26.8 < 0.001
COS-SBCX4 1049510 150.7512 2.4124 94.947 CO(3–2) 0.38 ± 0.07 653 ± 112 5.8 < 0.001
COS-SBCX4 1049929 150.7522 2.4140 94.789 CO(3–2) 0.30 ± 0.05 392 ± 62 6.3 < 0.001

COS-SBCX1 1408110 150.3480 2.7611 168.415 CO(5–4) 0.59 ± 0.08 554 ± 70 7.9 < 0.001
143.797 [CI](1–0) 0.43 ± 0.06 557 ± 82 6.8 < 0.001
134.686 CO(4–3) 0.80 ± 0.13 1145 ± 182 6.3 < 0.001
101.046 CO(3–2) 0.98 ± 0.15 859 ± 133 6.5 < 0.001

COS-SBCX7 394609 149.9896 1.7977 101.228 CO(3–2) 0.79 ± 0.09 675 ± 74 9.1 < 0.001
COS-SBCX7 394944 149.9882 1.7980 101.221 CO(3–2) 0.57 ± 0.07 491 ± 63 7.8 < 0.001
COS-SBCX7 392257 149.9910 1.7967 101.247 CO(3–2) 0.54 ± 0.09 675 ± 113 6.0 < 0.001
COS-SBCX7 392639 149.9816 1.7960 101.310 CO(3–2) 0.75 ± 0.20 491 ± 132 3.7 0.028 (b)

COS-SBC3 1345246 150.7193 2.6998 154.812 CO(5–4) 1.00 ± 0.08 725 ± 55.3 13.1 < 0.001
COS-SBC3 1340799 150.7226 2.6963 137.021 CO(4–3) 0.72 ± 0.11 308 ± 49 6.4 < 0.001
146.305 [CI](1–0) 0.62 ± 0.15 390 ± 95 4.1 0.022 (b)

COS-SBC6 835289 149.7053 2.2153 138.757 CO(4–3) 0.94 ± 0.10 909 ± 98 9.3 < 0.001
COS-SBC6 839791 149.7053 2.2171 138.718 CO(4–3) 1.05 ± 0.12 1044 ± 116 9.0 < 0.001
COS-SBC6 838104 149.7074 2.2140 168.253 CO(4–3) 0.39 ± 0.07 305 ± 57 5.4 < 0.001

Notes.

(a)

Chance probability over the entire spectrum as defined in Jin et al. (2019).

(b)

Chance probability when limiting the line search to ±2000 km/s from the brightest line (Zhou et al. 2024).

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