**Table 3:** Dependence of SF activity on the environment for the projected 2D catalogs.
	Total Pair Sample^a			Close Pairs Sample^b			Control Sample^c
	Passive^d	Active	P/A^e	Passive	Active	P/A	Passive	Active	P/A
Total Samples	66	34	-	55	45	-	68	32	-
High density regions	43	17	2.53	37	18	2.06	37	12	3.08
Low density regions	23	17	1.35	18	27	0.67	31	20	1.55

^a Galaxy pairs with spatial separations $r_{\rm p} < 100 \ {\rm kpc} \ h^{-1}$ and $\Delta cz < 350 \ { \rm km \ s^{-1}}$ .
^b Galaxy pairs with spatial separations $r_{\rm p} < 25 \ {\rm kpc} \ h^{-1}$ and $\Delta cz < 100 \ { \rm km \ s^{-1}}$ .
^c Galaxy pairs with spatial separations $r_{\rm p} > 100 \ {\rm kpc} \ h^{-1}$ .
^d Passive and Active columns represent percentages normalized to the total number of members in each Total Sample. We use log $\Sigma =-0.8$ to define high/density environments.
^e Ratio between the percentage of passive (P) and active (A) galaxies.

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