Gravitational torques from lopsided young stellar component sustain high black hole accretion rates in NGC 4593

Open Access

Table 1.

Results of modelling the molecular gas kinematics with KinMS.

Parameter	Initial guess ^(a)	Best-fit outer ^(b)	Best-fit inner ^(c)
F [K km s⁻¹]	25	$189 . 2_{- 9.2}^{+ 4.2}$ $189.2^{+4.2}_{-9.2}$	$66 . 1_{- 1.2}^{+ 0.3}$ $66.1^{+0.3}_{-1.2}$
PA [°]	290	$277 . 6_{- 2.1}^{+ 1.1}$ $277.6^{+1.1}_{-2.1}$	$279 . 4_{- 0.3}^{+ 0.8}$ $279.4^{+0.8}_{-0.3}$
i [°]	10	$48 . 8_{- 3.5}^{+ 3.9}$ $48.8^{+3.9}_{-3.5}$	$36 . 0_{- 0.6}^{+ 0.5}$ $36.0^{+0.5}_{-0.6}$
x₀ [′′]	0	$0 . 02_{- 0.03}^{+ 0.02}$ $0.02^{+0.02}_{-0.03}$	$- 0 . 03_{- 0.02}^{+ 0.04}$ $-0.03^{+0.04}_{-0.02}$
y₀ [′′]	0	$0 . 03_{- 0.02}^{+ 0.02}$ $0.03^{+0.02}_{-0.02}$	$- 0 . 04_{- 0.02}^{+ 0.03}$ $-0.04^{+0.03}_{-0.02}$
Δv_sys [km s⁻¹]	2450	$2487 . 5_{- 1.9}^{+ 1.1}$ $2487.5^{+1.1}_{-1.9}$	$2484 . 6_{- 0.9}^{+ 1.8}$ $2484.6^{+1.8}_{-0.9}$
σ_gas [km s⁻¹]	20	$20 . 81_{- 1.41}^{+ 1.40}$ $20.81^{+1.40}_{-1.41}$	$31 . 2_{- 0.3}^{+ 0.2}$ $31.2^{+0.2}_{-0.3}$
R_turn [′′]	1.0	$1 . 06_{- 0.12}^{+ 0.25}$ $1.06^{+0.25}_{-0.12}$	1.06 (fixed)
v_max [km s⁻¹]	200	$232 . 4_{- 11.7}^{+ 4.9}$ $232.4^{+4.9}_{-11.7}$	$218 . 7_{- 8.7}^{+ 4.5}$ $218.7^{+4.5}_{-8.7}$
log M_BH/M_⊙	6.65	6.65 (fixed)	6.65 (fixed)

Notes.

^(a)

Initial guess for the parameters.

^(b)

Best-fitting value retrieved from modelling the 15′′ × 15′′ lower-resolution cube.

^(c)

Best-fitting value retrieved from modelling the inner 1′′ × 1′′ of the high-resolution cube.

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