**Table 1:** IRAS 10190+1322 main properties.
	Unit	NE Galaxy	SW Galaxy
$\alpha _{\rm J2000}$	...	$10^{\rm h}21^{\rm m}42\hbox{$.\!\!^{\rm s}$ }754$ (1)	$10^{\rm h}21^{\rm m}42\hbox{$.\!\!^{\rm s}$ }490$ (4)
$\delta _{\rm J2000}$	...	$13\degr06\hbox{$^\prime$ }55\hbox{$.\!\!^{\prime\prime}$ }59$ (1)	$13\degr06\hbox{$^\prime$ }53\hbox{$.\!\!^{\prime\prime}$ }80$ (5)
$V - {c}z_{\rm obs}$	km s^-1	-100(10)	40(10)
$I_{\rm CO(1-0)}$	Jy km s^-1	20(1)	17(1)
$I_{\rm CO(2-1)}$	Jy km s^-1	62(3)	15(2)
$\Delta V_{\rm CO(1-0)}$ ( FWHM)	km s^-1	450(30)	360(30)
$L'_{\rm CO(2-1)}/L'_{\rm CO(1-0)}$	...	0.78(5)	0.6(1)^a
$R_{\rm CO}$	kpc	0.9(1)	3.7(3)
$D_{\rm major}/D_{\rm minor}$	...	1.3(1)	1.4(2)
$M_{\rm gas}$	$M_{\odot}$	4.2(2) $~\times~10^{9}$	3.6(2) $~\times~10^{9}$
$M_{\rm dyn}$	$M_{\odot}$	4(1) $~\times~10^{10}$	5(2) $~\times~10^{10}$
$M_{\rm gas}/M_{\rm dyn}$	...	0.11(3)	0.07(3)

CO luminosities have been computed using equation 3 in Solomon et al. (1997). Numbers in parentheses indicate estimated measurement errors in units of the last significant figures. ^a Corresponding to the central region ( $R_{\rm CO} = 1.1$ kpc) of the SW galaxy.

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