Deep MOS spectroscopy of NGC 1316 globular clusters

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

Galapagos

Workshop; On the Origin (and Evolution) of Baryonic Galaxy Halos); 2017

Observatorio Astronómico de Quito (Ecuador)/Swinburne University (Asutralia)

The giant elliptical galaxy NGC 1316 is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent (∼3 Gyr). Based on the idea that globular clusters systems (GCS) constitute genuinetracers of the formation and evolution of their host galaxies, we conducted a spectroscopic study of approximately 40 globular clusters (GCs) candidates associated with this interesting galaxy. We determined ages, metallicities, and α-element abundances for each GC present in the sample, through the measurement of different Lick indices and their subsequent comparison with simple stellar populations models (SSPs).