ALMAGAL - IX. The chemical complexity of AG318.9477−00.1960: A line-identification template for ALMAGAL

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Volume 711 (July 2026)

A&A, 711 (2026) A118

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Table D.1

Results of the SLIM fits of the species analysed towards AG318−c9, sorted by increasing number of atoms.

Species	T_ex (K)	N (×10¹⁶ cm⁻²)	X (×10⁻⁹)	FWHM(km s⁻¹)	V (km s⁻¹)	N° transitions
¹³CO^(a)	167	42 ± 3	57 ± 4	3.2 ± 0.3	−31.59 ± 0.12	1
C¹⁸O	167	30.4 ± 1.3	41.3 ± 1.7	5.4 ± 0.3	−33.66 ± 0.11	1
SO^(b)		12.2 ± 1.1	16.5 ± 1.4	9.0 ± 0.3	−33.34 ± 0.16	1
³³SO	167	0.136 ± 0.010	0.185 ± 0.014	5.0	−33.9 ± 0.3	4
SiO	167	0.054 ± 0.002	0.073 ± 0.003	15.0 ± 0.6	−32.9 ± 0.3	1
SiS	167	0.039 ± 0.003	0.053 ± 0.004	5.2 ± 0.5	−31.9 ± 0.2	4
SO₂^(b)		24.3 ± 1.4	33.1 ± 1.9	5.7 ± 0.6	−36.0 ± 0.2	2
³⁴SO₂	167	0.77 ± 0.07	1.05 ± 0.10	10.0	−36.4 ± 0.5	2
DCN	167	0.130 ± 0.002	0.178 ± 0.003	8.13 ± 0.15	−34.35 ± 0.07	1
O¹³CS	167	0.892 ± 0.017	1.21 ± 0.02	5.26 ± 0.12	−35.02 ± 0.05	1
H₂CO^(b)		33.9 ± 7.3	46.1 ± 9.9	7.0	−34.14 ± 0.06	2
$H_{2}^{13} CO$ $Mathematical equation: ${\rm{H}}_2^{13}{\rm{CO}}$$	167	0.727 ± 0.009	0.989 ± 0.012	6.66 ± 0.09	−34.66 ± 0.04	2
H₂C¹⁷O	167	0.125 ± 0.011	0.170 ± 0.016	6.0	−36.4 ± 0.3	1
H₂CS	167	14.8 ± 1.4	20 ± 2	4.0 ± 0.4	−35.02 ± 0.19	1
HNCO^(b)		7.9 ± 1.7	10.8 ± 2.3	7.17 ± 0.11	−35.13 ± 0.04	10
H¹⁵NCO	167	1.46 ± 0.12	1.98 ± 0.16	5.5 ± 0.5	−31.5 ± 0.2	1
HN¹³CO	167	0.17 ± 0.03	0.23 ± 0.03	5.0	−35.1 ± 0.5	19
HDCS	167	0.13 ± 0.02	0.18 ± 0.03	3.0 ± 0.6	−35.1 ± 0.3	3
H₂CCO	167	1.56 ± 0.04	2.13 ± 0.06	6.4 ± 0.2	−35.07 ± 0.09	1
HC₃N*^(b)		0.84 ± 0.18	1.1 ± 0.2	8.08 ± 0.17	−35.04 ± 0.07	7
HC¹³CCN	167	(6.5 ± 1.0) · 10⁻³	(8.9 ± 1.4) · 10⁻³	5.0	−33.1 ± 0.5	1
HCC¹³CN	167	0.0190 ± 0.0013	0.0258 ± 0.0018	7.1 ± 0.6	−34.8 ± 0.2	1
H¹³CCCN	167	0.044 ± 0.008	0.060 ± 0.010	7.7 ± 1.5	−38.1 ± 0.7	1
HCCC¹⁵N	167	0.011 ± 0.003	0.015 ± 0.004	7.0	−35	1
HC¹³CCN, v₇ = 1	167	0.031 ± 0.003	0.042 ± 0.003	5.0	−33.9 ± 0.2	1
NH₂CN	202 ± 10	0.216 ± 0.009	0.294 ± 0.013	6.8 ± 0.2	−35.56 ± 0.08	19
H₂CNH	250 ± 80	49 ± 50	67 ± 70	4.0	−38.1 ± 0.3	3
t-HCOOH^(b)		29.4 ± 6.3	40 ± 8.6	5.7 ± 0.2	−35.58 ± 0.09	1
t-H¹³COOH	167	0.63 ± 0.12	0.86 ± 0.16	5.0	−37	1
CH₃OH^(b)		(9.4 ± 2) × 10²	(12.9 ± 2.8) × 10²	6.61 ± 0.10	−34.60 ± 0.04	24
¹³CH₃OH	143 ± 8	20.5 ± 0.5	27.9 ± 0.7	5.37 ± 0.16	−35.35 ± 0.07	4
${CH}_{3}^{18} OH$ $Mathematical equation: ${\rm{CH}}_3^{18}{\rm{OH}}$$	64 ± 12	2.2 ± 0.2	3.1 ± 0.3	4.4 ± 0.3	−35.59 ± 0.15	3
CH₃OD	94 ± 7	11.7 ± 1.3	15.9 ± 1.8	5.6 ± 0.4	−35.91 ± 0.16	4
CH₂DOH	130±7	17.1 ± 1.1	23.3 ± 1.6	6.9 ± 0.4	−34.74 ± 0.16	6
CHD₂OH	140 ± 70	4.3 ± 1.9	6±3	5.0	−36	4
CH₃CN^(b)		6.6 ± 1.4	9±1.9	6.57 ± 0.13	−34.87 ± 0.06	6
${CH}_{3}^{13} CN$ $Mathematical equation: ${\rm{CH}}_3^{13}{\rm{CN}}$$	127 ± 19	0.162 ± 0.012	0.221 ± 0.017	5.0	−35.76 ± 0.14	6
HC(O)NH₂^(b)		5.1 ± 1.1	6.9 ± 1.5	5.2 ± 0.2	−34.73 ± 0.11	5
H¹³C(O)NH₂	167	0.111 ± 0.008	0.150 ± 0.010	4.8 ± 0.4	−36.44 ± 0.16	2
DC(O)NH₂	167	0.30 ± 0.02	0.41 ± 0.03	5.0	−37.3 ± 0.2	1
HC(O)NH₂, v₁₂ = 1	167	3.43 ± 0.14	4.67 ± 0.19	6.3 ± 0.3	−35.59 ± 0.12	1
CH₃CHO^(b)		20.7 ± 4.5	28.2 ± 6.1	4.0	−35.90 ± 0.16	7
¹³CH₃CHO	180 ± 90	0.4 ± 0.4	0.6 ± 0.6	5.0	−35.5 ± 0.4	6
c - C₂H₄O	128 ± 11	0.71 ± 0.05	0.97 ± 0.07	5.0 ± 0.4	−36.14 ± 0.16	5
CH₃NCO	92 ± 8	0.82 ± 0.06	1.11 ± 0.08	5.0	−35.80 ± 0.09	13
HOCH₂CN	51 ± 3	1.28 ± 0.09	1.75 ± 0.13	5.0	−37.04 ± 0.18	6
C₂H₃CN	138 ± 14	0.360 ± 0.012	0.489 ± 0.017	5.0	−36.17 ± 0.11	18
CH₃OCHO	167±3	22.0 ± 0.4	29.9 ± 0.6	5.59 ± 0.08	−35.22 ± 0.04	41
CH₂(OH)CHO	168 ± 13	1.45 ± 0.12	1.97 ± 0.17	4.0	−36.89 ± 0.10	19
CH₃COOH	70 ± 30	0.74 ± 0.07	1.00 ± 0.10	3.5	−36.54 ± 0.17	9
CH₃COOH, vt=1	167	2.38 ± 0.18	3.2 ± 0.2	3.5	−36	24
CH₃OCH₃^(b)		85.6 ± 18.4	116.5 ± 25	5.16 ± 0.17	−35.19 ± 0.06	21
¹³CH₃OCH₃	133 ± 16	1.81 ± 0.19	2.5 ± 0.3	5.5 ± 0.4	−35.10 ± 0.15	19
C₂H₅OH	149 ± 14	10.2 ± 0.8	13.8 ± 1.1	5.1 ± 0.2	−36.32 ± 0.10	10
C₂H₅CN^(b)		5.3 ± 1.1	7.2 ± 1.5	5.6	−35.02 ± 0.05	8
$C_{2} H_{5}^{13} CN$ $Mathematical equation: ${{\rm{C}}_{\rm{2}}}{\rm{H}}_5^{13}{\rm{CN}}$$	167	0.117 ± 0.014	0.159 ± 0.019	5.0	−36	5
C₂H₅CN, V₂₀ = 1 − A	167	2.4 ± 0.3	3.2 ± 0.4	4.0	−33	2
CH₃CONH₂	70 ± 20	0.122 ± 0.014	0.166 ± 0.019	4.0	−37.1 ± 0.3	25
aGg′ − (CH₂OH)₂	240 ± 30	5.1 ± 0.6	6.9 ± 0.9	6.19 ± 0.19	−35.90 ± 0.08	37
gGg′ − (CH₂OH)₂	167	1.5 ± 0.2	2.1 ± 0.3	3.5	−36.9 ± 0.3	9
CH₃COCH₃	84±6	1.4 ± 0.6	1.9 ± 0.8	5.33 ± 0.11	−35.59 ± 0.05	39
C₂H₅OCHO	110 ± 30	1.5 ± 0.2	2.1 ± 0.3	4.5	−37	38

Notes. The derived physical parameters (T_ex, N, $X = N_{species} / N_{H_{2}}$ $Mathematical equation: $X = {N_{{\rm{species}}}}/{N_{{{\rm{H}}_2}}}$$ , FWHM, and V) are listed along with their associated uncertainties. The last column indicates the number of transitions used to fit the spectrum. The parameters we fixed during the fitting procedure are reported without uncertainties. When T_ex is fixed, $T_{ex}^{{CH}_{3} OCHO}$ $Mathematical equation: $T_{{\rm{ex}}}^{{\rm{C}}{{\rm{H}}_3}{\rm{OCHO}}}$$ is assumed (see Sect. A). HC₃N* represents the group composed of HC₃N, HC₃N (v₆ = 1), HC₃N (v₇ = 1), and HC₃N (v₇ = 2). ^(a)Species exhibiting a unique self-absorbed transition, resulting in a lower limit on the column density. ^(b)The column density was estimated from the less abundant isotopologues using the isotopic ratios ¹²C/¹³C = 46.6 ± 10 (Yan et al. 2019), ³²S/³⁴S = 20.7 ± 1.2 (Yan et al. 2023), and ³²S/³³S = 88.9 ± 7.7 (Yan et al. 2023).

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