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We explore how the group environment may affect the evolution of star-forminggalaxies. We select 1197 Galaxy And Mass Assembly (GAMA) groups at $0.05\leq z\leq 0.2$ and analyze the projected phase space (PPS) diagram, i.e. the galaxyvelocity as a function of projected group-centric radius, as a localenvironmental metric in the low-mass halo regime $10^{12}\leq(M_{200}/M_{\odot})< 10^{14}$. We study the properties of star-forming groupgalaxies, exploring the correlation of star formation rate (SFR) with radialdistance and stellar mass. We find that the fraction of star-forming groupmembers is higher in the PPS regions dominated by recently accreted galaxies,whereas passive galaxies dominate the virialized regions. We observe a smalldecline in specific SFR of star-forming galaxies towards the group center by afactor $\sim 1.2$ with respect to field galaxies. Similar to cluster studies,we conclude for low-mass halos that star-forming group galaxies represent aninfalling population from the field to the halo and show suppressed starformation.

Galaxy And Mass Assembly (GAMA): impact of the group environment on galaxy star formation