Long-slit spectrophotometry of the multiple knots of the polar ring galaxy IIZw71

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Table 7:

Derived properties of the observed knots using the extinction-corrected H $\alpha$ fluxes measured in the images from Gil de Paz et al. (2003).
ID	$R_{\rm eq}$	I(H $\alpha$ )	L(H $\alpha$ )	Q(H $^{\circ}$ )	$M_{\rm ion}$	M(HII)	SFR
	(arcsec)	(10^-14 erg s^-1 cm^-2)	(10³⁸ erg s^-1)	(10⁵¹ s^-1)	(10⁵ $M_\odot$ )	(10⁴ $M_\odot$ )	$M_\odot$ /yr
A	1.64	1.25	4.91	3.59	7.16	3.64	0.004
B	2.94	4.83	19.0	13.9	27.6	14.1	0.015
C	2.65	3.96	15.6	11.4	22.7	11.5	0.012
D	1.43	1.10	4.33	3.16	6.31	3.21	0.003

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