Gas and stellar dynamics in Stephan’s Quintet - Mapping the kinematics in a closely interacting compact galaxy group

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Table 3.

Line ratios of ¹²CO (2 − 1) and ¹²CO (1 − 0) main beam temperatures.

	Vlos
	average ^(a)	¹²CO (1 − 0)	¹²CO (2 − 1)	¹²CO (2 − 1)
Reg.	(K km s⁻¹)	T_mb (mK)	T_mb (mK)	/¹²CO (1 − 0)
19_i	6645	9.27 ± 0.84	6.45 ± 2.55	0.70 ± 0.28
19_iii	6655	9.12 ± 1.18	6.62 ± 3.18	0.73 ± 0.36

b_i	6640	8.11 ± 1.28	4.06 ± 1.70	0.50 ± 0.22
b_ii	6420	6.76 ± 1.36	6.25 ± 2.35	0.93 ± 0.39

SQ-A	5845	3.94 ± 1.69	6.42 ± 2.33	1.63 ± 0.92

SF_i	5845	5.42 ± 1.45	6.43 ± 1.66	1.19 ± 0.44
SF_ii	5825	6.16 ± 1.90	7.70 ± 1.95	1.25 ± 0.50
	6575	4.30 ± 0.75	5.09 ± 1.59	1.18 ± 0.42
SF_iii	5805	2.76 ± 0.88	8.88 ± 1.67	3.22 ± 1.19
	6610	4.44 ± 1.50	5.25 ± 1.63	1.18 ± 0.54
SF_iv	6465	8.18 ± 1.87	5.49 ± 2.06	0.67 ± 0.29

18_i	5860	3.90 ± 1.46	11.29±1.96	2.90 ± 1.20
	6440	4.36 ± 1.14	5.39 ± 1.93	1.24 ± 0.55

Notes. The main beam temperatures were obtained from the Gaussian fits.

^(a)

The velocities stated are the average of the two CO lines, separated by a maximum of three velocity channels, 120 km s⁻¹, the average separation is ∼50 km s⁻¹.

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