More sulphur in TMC-1: Discovery of the NC3S and HC3S radicals with the QUIJOTE line survey

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Volume 688 (August 2024)

A&A, 688 (2024) L13

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Table 1.

Estimated line parameters for the observed lines of NC₃S.

J_u − J_l	F_u − F_l	ν_obs^(a)	Obs.-calc.	$\int T_{A}^{} d v$ $\int T_{\rm A}^ {\rm d}v$ ^(b)	Δv^(c)	$T_{A}^{}$ $T_{\rm A}^$ ^(d)	Notes
		(MHz)	(kHz)	(mK km s⁻¹)		(mK)
23/2–21/2		33096.164 ± 0.020	2.6	1.79 ± 0.11	3.02	0.61 ± 0.09	A
23/2–21/2	25/2–23/2	33096.047 ± 0.020	13.0	0.53 ± 0.05	0.70 ^(e)	0.71 ± 0.09
23/2–21/2	23/2–21/2	33096.168 ± 0.020	−11.0	0.61 ± 0.05	0.70 ^(e)	0.83 ± 0.09
23/2–21/2	21/2–19/2	33096.303 ± 0.020	20.0	0.50 ± 0.05	0.70 ^(e)	0.66 ± 0.09
25/2–23/2		35974.029 ± 0.020	−2.3	1.73 ± 0.11	2.10	0.78 ± 0.08
25/2–23/2	27/2–25/2	35973.943 ± 0.020	23.0	0.74 ± 0.14	0.90 ± 0.22	0.77 ± 0.08
25/2–23/2	25/2–23/2	35974.048 ± 0.020	25.0	0.46 ± 0.18	0.61 ± 0.25	0.76 ± 0.08
25/2–23/2	23/2–21/2	35974.138 ± 0.020	11.0	0.48 ± 0.12	0.62 ± 0.09	0.72 ± 0.08
27/2–25/2		38851.890 ± 0.020	3.0	1.27 ± 0.11	2.20	0.54 ± 0.11
29/2–27/2		41729.725 ± 0.020	−2.2	0.82 ± 0.10	1.20	0.70 ± 0.12
31/2–29/2		44607.546 ± 0.020	−4.9	0.76 ± 0.08	1.39	0.51 ± 0.11
33/2–31/2		47485.361 ± 0.020	4.1	0.89 ± 0.18	1.30	0.69 ± 0.15	A

Notes.

^(a)

Observed frequency adopting a v_LSR of 5.83 km s⁻¹ for the source (Cernicharo et al. 2020). If F is not given, then the value refers to the frequency centroid and the calculated frequency is obtained from B_eff and D_eff. For lines with resolved hyperfine structure, the calculated frequencies have been obtained from a fit to the laboratory data from McCarthy et al. (2003).

^(b)

Integrated line intensity in mK km s⁻¹.

^(c)

Equivalent line width (in km s⁻¹).

^(d)

Antenna temperature in millikelvins.

^(e)

Line width has been fixed.

^(A)

Partially blended with an identified feature.

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