Mapping CS in starburst galaxies: Disentangling and characterising dense gas

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Table 6

LTE column densities.

Source	Line	Offset	Offset	N(CS) × 10¹⁴
		RA (′′ )	Dec (′′ )	T = 15 K	T = 50 K	T = 300 K

NGC 6946	CS(2−1)	0	0	0.176	0.42	2.25
		0	−10	0.099	0.24	1.27
		0	+10	0.087	0.21	1.11
		+10	0	0.133	0.32	1.71
		−10	0	0.096	0.23	1.22
		−20	0	0.071	0.17	0.91
		+20	0	0.046	0.11	0.58
		+10	+10	0.062	0.15	0.79
		+10	−10	−	−	−
		0	−20	0.051	0.12	0.66
		0	+20	0.039	0.09	0.5

NGC 6946-1	CS(2−1)	0	0	0.057	0.14	0.73
		0	−10	0.027	0.07	0.35
		0	+10	−	−	−
		+10	0	0.056	0.14	0.72
		−10	0	0.031	0.07	0.4
		−20	0	−	−	−
		+20	0	0.02	0.05	0.26
		+10	+10	−	−	−
		+10	−10	−	−	−
		0	−20	−	−	−
		0	+20	−	−	−

NGC 6946-2	CS(2−1)	0	0	0.111	0.27	1.43
		0	-10	0.069	0.17	0.89
		0	+10	−	−	−
		+10	0	0.071	0.17	0.9
		−10	0	0.063	0.15	0.81
		−20	0	−	−	−
		+20	0	0.024	0.06	0.31
		+10	+10	−	−	−
		+10	−10	−	−	−
		0	−20	−	−	−
		0	+20	−	−	−

NGC 3079	CS(2−1)	0	0	0.098	0.24	1.26
		0	−10	0.031	0.08	0.4
		0	+10	0.122	0.29	1.56
		+10	0	0.11	0.26	1.41
		−10	0	0.067	0.16	0.86
		−10	+10	0.074	0.18	0.95
		−10	+20	0.045	0.11	0.58

Notes. “−” indicates no fit was possible.

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