A study of interacting galaxies from the Arp-Madore catalog - Triggering of star formation and nuclear activity

Open Access

Table 2.

Ionized gas and stellar extinction properties of the INT and CTR samples.

	INT (50 galaxies)		CTR (40 galaxies)		INT/CTR

Property	$\bar{p} \pm σ$ $\bar{p} \pm \sigma$	median ± Q.D	$\bar{p} \pm σ$ $\bar{p} \pm \sigma$	median ± Q.D.	Fraction	KS p-value
A_Vgas (mag)	3 ± 1	3.0 ± 0.8	1.6 ± 0.8	1.5 ± 0.4	1.91	3.5e−07
A_Vgas/A_V*	2 ± 1	2.0 ± 0.9	3 ± 3	2.5 ± 0.7	0.8	4.4e−02

Notes. The measurements were computed for galaxies for which an extinction calculation was possible. The columns include the mean ( $\bar{p}$ $\bar{p}$ ), standard deviation (σ), median, and QD for both the INT and CTR samples. The last two columns correspond to the fraction between the median values of the INT and CTR sample and the KS test p-values.

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