Deep MOS spectroscopy of NGC 1316 globular clusters

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

Islas Galapagos

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

Observatorio Astronomico de Quito

The giant elliptical galaxy NGC 1316, the brightest galaxy in the Fornax cluster, 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 genuine tracers 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(SSP).