Table 1.

Dipole moments (µ), number of detected lines, table number listing the spectroscopic and observational line parameters, rotational temperatures (T _rot) and column densities (N) obtained with the rotational diagram (RD) analysis, and physical parameters assumed for the MADEX LTE model of the new molecules detected in this work.

Molecule	µ [Debye]	No. Lines	Table	RD analysis		MADEX LTE model				Notes
				T rot [K]	N × 1012 [cm−2]	ν 0 [km s−1]	ν FWHM [km s−1]	T rot [K]	N × 1012 [cm−2]
A/E-CH3SH	µa=1.3a	3	B.1	...	...	−1.0	7.0	5.0	20
l-C3H+	µa=3.0b	3	B.2	5 ± 1	1.2 ± 0.2	−0.6	6.0	5.0	1.0
C3N	µa=2.8c	4	B.3	5 ± 1	4 ± 1	−0.5	5.0	5.0	3.0	†
t-HCOOH	µa=1.4d	5	B.4	5 ± 1	2.3 ± 0.5	−0.7	6.0	5.0	2.3	*
				6 ± 1	3.3 ± 0.4	−0.7	6.0	6.0	3.3	**
					6 ± 2					***
CH2CHCN	µa=3.8e	7	B.5	10 ± 4	5 ± 2	−0.5	5.0	10	5.5
o-H2CN	µa=2.5f	4	B.6	...	...	−1.0	5.0	5.0	4.0
OCS	µa=0.7g	3	B.7	8 ± 3	43 ± 15		−0.7	5.5	8.0	43
SO2	µb=1.6h	3	B.8	8 ± 1	25 ± 4	−0.9	7.0	8.0	25
O+-NH2CN	µa=4.3i	6	B.9	30 ± 5	11 ± 2	−0.9	7.0	30	11

^(a)Notes. Refs. Tsunekawa et al. (1989)

^(b) Pety et al. (2012)

^(c) McCarthy et al. (1995)

^(d) Kuze et al. (1982)

^(e) Kraśnicki & Kisiel (2011)

^(f) Cowles et al. (1991)

^(g) Tanaka et al. (1985)

^(h) Patel et al. (1979)

⁽ⁱ⁾ Read et al. (1986)

^†This slight difference in N (within the uncertainty) between the two methods is mainly caused by adapting the C₃N spectroscopic values in the rotational diagram in order to address the blending of the hyperfine components (see Sect. C).

^*For the K _a = 0 ladder (see Sect. C).

^**For the K _a = 1 ladder (see Sect. C).

^***Total column density (see Sect. C).