Abstract
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 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 (SSPs).
Highlights
The giant elliptical galaxy and strong radio source NGC 1316 displays a number of morphological features that might be interpreted as a merger remnant of approximately 3 Gyr ([1])
In a previous photometric work, we detected the presence of different globular clusters (GCs) sub-populations likely associated with different merger events ([3])
We conducted a spectroscopic study of 40 globular clusters candidates belonging to NGC 1316 using the multi-object mode of the Gemini Multi-Object Spectrograph (GMOS), mounted on the Gemini South telescope (Figure 1)
Summary
The giant elliptical galaxy and strong radio source NGC 1316 displays a number of morphological features that might be interpreted as a merger remnant of approximately 3 Gyr ([1]). We can emphasise shells, ripples, and an unusual pattern of dust, formed by large filaments and dark structures This galaxy is located at a distance of 20.8 Mpc ([2]), and belongs to Fornax, one of the closest and most studied galaxy clusters of the southern hemisphere. In a previous photometric work, we detected the presence of different globular clusters (GCs) sub-populations likely associated with different merger events ([3]). In this context, we conducted a spectroscopic study of 40 globular clusters candidates belonging to NGC 1316 using the multi-object mode of the Gemini Multi-Object Spectrograph (GMOS), mounted on the Gemini South telescope (Figure 1).
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