Program: GS-2013B-Q-67

In this project we propose to observe the interacting spiral galaxy ESO194-G013 and its environment with GMOS to determine the radial Oxygen abundance distribution in this system. Since this object is interacting with Robertson's Quartet Compact Group, but it is conveniently away from the main body of the group, it provides an ideal laboratory to investigate the secular effect of the spiral arms in the Oxygen distribution of this galaxy against the Oxygen enrichment associated to star forming regions in its surroundings. Considering that ESO194-G013 had enough time to homogenize the effects of the interactions, breaks in the Oxygen distribution inside the arms domain are associated to corotation, and breaks away from the spiral arms are related to the remaining effects of the interactions. Thus, one single GMOS observation will provide us the overall panorama on the effects taking place in the chemical enrichment of the Robertson’s Quartet Compact Group, besides it will allow us to complete the Gemini/GMOS observations of this interacting system started in the last semester by our group. We note that we have a r-band image of ESO194-G013 and the MOS mask was already desing.