Table 2: SiO(2-1) and CH₃OH(2 $_{\rm k}$ -1 $_{\rm k}$ ) luminosities of a sample of bipolar outflows. Column 2: mass of the class 0 object; Col. 3: luminosity of the class 0 object; Col. 4: SiO luminosity integrated within the SiO emitting region of the outflow; Col. 5: SiO-to-CH₃OH total luminosity ratio; Col. 6: surface density of outflows required to obtain the mean I(SiO) in the northern spiral arm+nuclear ring of IC 342; Col. 7: references: a: Bachiller et al. (2001); b: Gueth et al. (1997); c: Fuente et al. (2005b); d: Codella & Bachiller et al. (1999).
(1) (2) (3) (4) (5) (6) (7)

Source $M_{\star}$ $L_\star$ $L_{\rm SiO}$ $L_{\rm SiO}/L_{\rm CH_3OH}$ $N_{\rm outf}$ Ref.

( $M_{\odot}$ ) ( $L_{\odot}$ ) (K km s^-1 pc²) (outflows pc^-2)

L 1157 (blue lobe) 0.2 11 0.19 0.38 4.9 a, b

NGC 7129-FIRS2
5 500 c

outflow 1 0.21 0.14 4.4

outflow 2 0.08 0.10 11.6

CB3 4 930 2.37 0.45 0.4 d

**Table 2:** SiO(2-1) and CH₃OH(2 $_{\rm k}$ -1 $_{\rm k}$ ) luminosities of a sample of bipolar outflows. Column 2: mass of the class 0 object; Col. 3: luminosity of the class 0 object; Col. 4: SiO luminosity integrated within the SiO emitting region of the outflow; Col. 5: SiO-to-CH₃OH total luminosity ratio; Col. 6: surface density of outflows required to obtain the mean I(SiO) in the northern spiral arm+nuclear ring of IC 342; Col. 7: references: a: Bachiller et al. (2001); b: Gueth et al. (1997); c: Fuente et al. (2005b); d: Codella & Bachiller et al. (1999).
(1)	(2)	(3)	(4)	(5)	(6)	(7)
Source	$M_{\star}$	$L_\star$	$L_{\rm SiO}$	$L_{\rm SiO}/L_{\rm CH_3OH}$	$N_{\rm outf}$	Ref.
	( $M_{\odot}$ )	( $L_{\odot}$ )	(K km s^-1 pc²)		(outflows pc^-2)
L 1157 (blue lobe)	0.2	11	0.19	0.38	4.9	a, b
NGC 7129-FIRS2	5	500				c
outflow 1			0.21	0.14	4.4
outflow 2			0.08	0.10	11.6
CB3	4	930	2.37	0.45	0.4	d

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