Table 1: We list the position angle (PA), inclination (i), distance (D), spatial scale, coordinates of the dynamical center derived from CO and/or from the locus of the radio continuum source [(RA₂₀₀₀, Dec₂₀₀₀); accurate to $\sim$ 0.5 $^{\prime \prime }$ on average] and systemic velocity( $v_{\rm sys}^{\rm LSR}$ ) derived from CO for NGC 4321, NGC 4826, NGC 4579 and NGC 6951 used in this paper. The spatial resolutions of the CO observations are listed in Cols. 9, 10.
Galaxy PA( $^{\circ }$ ) i( $^{\circ }$ ) D (Mpc) Scale (pc/ $^{\prime \prime }$ ) RA₂₀₀₀ Dec₂₀₀₀ $v_{\rm sys}^{\rm LSR}$ (km s^-1) CO(1-0)( $^{\prime\prime} \times ^{\prime\prime}$ ) CO(2-1)( $^{\prime\prime} \times ^{\prime\prime}$ )

NGC 4321 153 32 16.8 83 12 $^{\rm h}$ 22 $^{\rm m}$ 54.91 $^{\rm s}$ $15\degr49^{\prime}19.9^{\prime\prime}$ 1573 $\pm$ 10 2.2 $\times$ 1.2 -

NGC 4826 112 54 4.1 20 12 $^{\rm h}$ 56 $^{\rm m}$ 43.63 $^{\rm s}$ $21\degr40^{\prime}59.1^{\prime\prime}$ 413 $\pm$ 10 2.5 $\times$ 1.8 0.7 $\times$ 0.5

NGC 4579 95 36 19.8 97 12 $^{\rm h}$ 37 $^{\rm m}$ 43.52 $^{\rm s}$ $11\degr49^{\prime}05.5^{\prime\prime}$ 1469 $\pm$ 10 2.0 $\times$ 1.3 1.0 $\times$ 0.6

NGC 6951 134 42 19 93 20 $^{\rm h}$ 37 $^{\rm m}$ 14.12 $^{\rm s}$ $66\degr06^{\prime}20.0^{\prime\prime}$ 1441 $\pm$ 10 1.4 $\times$ 1.1 0.6 $\times$ 0.5

**Table 1:** We list the position angle (PA), inclination (i), distance (D), spatial scale, coordinates of the dynamical center derived from CO and/or from the locus of the radio continuum source [(RA₂₀₀₀, Dec₂₀₀₀); accurate to $\sim$ 0.5 $^{\prime \prime }$ on average] and systemic velocity( $v_{\rm sys}^{\rm LSR}$ ) derived from CO for NGC 4321, NGC 4826, NGC 4579 and NGC 6951 used in this paper. The spatial resolutions of the CO observations are listed in Cols. 9, 10.
Galaxy	PA( $^{\circ }$ )	i( $^{\circ }$ )	D (Mpc)	Scale (pc/ $^{\prime \prime }$ )	RA₂₀₀₀	Dec₂₀₀₀	$v_{\rm sys}^{\rm LSR}$ (km s^-1)	CO(1-0)( $^{\prime\prime} \times ^{\prime\prime}$ )	CO(2-1)( $^{\prime\prime} \times ^{\prime\prime}$ )
NGC 4321	153	32	16.8	83	12 $^{\rm h}$ 22 $^{\rm m}$ 54.91 $^{\rm s}$	$15\degr49^{\prime}19.9^{\prime\prime}$	1573 $\pm$ 10	2.2 $\times$ 1.2	-
NGC 4826	112	54	4.1	20	12 $^{\rm h}$ 56 $^{\rm m}$ 43.63 $^{\rm s}$	$21\degr40^{\prime}59.1^{\prime\prime}$	413 $\pm$ 10	2.5 $\times$ 1.8	0.7 $\times$ 0.5
NGC 4579	95	36	19.8	97	12 $^{\rm h}$ 37 $^{\rm m}$ 43.52 $^{\rm s}$	$11\degr49^{\prime}05.5^{\prime\prime}$	1469 $\pm$ 10	2.0 $\times$ 1.3	1.0 $\times$ 0.6
NGC 6951	134	42	19	93	20 $^{\rm h}$ 37 $^{\rm m}$ 14.12 $^{\rm s}$	$66\degr06^{\prime}20.0^{\prime\prime}$	1441 $\pm$ 10	1.4 $\times$ 1.1	0.6 $\times$ 0.5

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 Observational evidence of ongoing feeding
	4 Gravitational torques and AGN fueling
	5 Discussion and conclusions
	References