The outflow of gas from the Centaurus A circumnuclear disk - Atomic spectral line maps from Herschel/PACS and APEX

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Table 7

Cen A center dense^a neutral gas amounts^b.

Case^c	Nominal	Reduced	Reduced
Temperature	45 K	45 K	25 K

Model N(CO)/dV (10¹⁷ K km s^-1 cm^-2)	0.85	1.0	3.0
Model N(CI)/dV (10¹⁷ K km s^-1 cm^-2)	10	5.4	4.0
Mean N(CO) (10¹⁸ cm^-2)	0.19	0.19	1.1
Mean N(CI) (10¹⁸ cm^-2)	1.7	0.83	1.3
M_densegas(CO)^d (10⁷M_⊙)	0.3	0.3	1.85
M_densegas(CI)^d (10⁷M_⊙)	2.8	1.35	2.15
M_tenuousgas(CO)^d (10⁷M_⊙)	1.0	1.0	1.0

Notes.

^(a)

All values for log n( H₂) = 4.2;

^(b)

uncertainties in the derived column densities and masses are typically 50%;

^(c)

see text, Sect. 4.1;

^(d)

includes a contribution by helium of 35% by mass.

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