Table 2: Parameters of the double Gaussian fit executed on $\rm H\alpha$ over the bulk of the HII regions. The flux of each component F is given in 10^-15 erg/s/cm². The position with respect to the nominal center wavelength v and the $\sigma$ in km s^-1. The dimension along the slit, on which the lines were integrated, d is in $^{\prime \prime }$ , this is basically the FWHM of the spatial profile. The virial masses Mare in units of $10^6~M_{\odot}$ .
Name F₁ v₁ $\sigma_1$ F₂ v₂ $\sigma_2$ d M/ $\eta$

5253-1 44.9 8.7 23.1 16.2 -27.4 18.5 4.2 1.73

5253-5 248.0 2.0 19.0 254.3 -9.4 49.0 1.6 0.81

He2-10 11.9 1.1 33.8 13.1 -19.5 93.5 2.5 13.3

**Table 2:** Parameters of the double Gaussian fit executed on $\rm H\alpha$ over the bulk of the HII regions. The flux of each component F is given in 10^-15 erg/s/cm². The position with respect to the nominal center wavelength v and the $\sigma$ in km s^-1. The dimension along the slit, on which the lines were integrated, d is in $^{\prime \prime }$ , this is basically the *FWHM* of the spatial profile. The virial masses Mare in units of $10^6~M_{\odot}$ .
Name	F₁	v₁	$\sigma_1$	F₂	v₂	$\sigma_2$	d	M/ $\eta$
5253-1	44.9	8.7	23.1	16.2	-27.4	18.5	4.2	1.73
5253-5	248.0	2.0	19.0	254.3	-9.4	49.0	1.6	0.81
He2-10	11.9	1.1	33.8	13.1	-19.5	93.5	2.5	13.3

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