Trazando el mapa genético de NGC 1316 a través de su sistema de cúmulos globulares

SESTO, L. A.; FAIFER, F. R.; FORTE, J. C.

Córdoba

Congreso; Reunión Anual de la Asociación Argentina de Astronomía; 2014

Observatorio Astronómico de Córdoba (UNC)

The giant early-type galaxy NGC 1316 (Fornax A) is an intermediate-agemerger remnant (-- yrs), in which an unusual pattern of dust, formed bylarge filaments and dark structures, demands special attention. This galaxy belongs to Fornax, one of the closest and most studied galaxyclusters of the southern hemisphere. The dust structures pose aninteresting challenge for photometry in the central regions. Based onthe idea that Globular Clusters systems (GCS) constitute genuinetracers of the formation and evolution of galaxies that contain them,we present a multicolor photometric study of globular clusterscandidates (GC) associated with NGC 1316. We performed the reductionand analysis of a mosaic of gri images obtained with the GeminiMulti-object Spectrograph (GMOS) camera, mounted on the Gemini Southtelescope. These GMOS data were combined with BVIgz photometry from the HST Advanced Camera for Surveys (ACS) as well as with publishedWashington photometry, and used to define a multicolor grid. This gridwill be used to attempt to identify the properties of the differentsubpopulations of CG present in NGC 1316.