The properties of Globular Clusters(GCs) and of their stellar population provide fundamentalinformation on the environment where galaxies formed, and are a basic ingredient for the un-derstanding of galaxies.The goal of this work is to analyze40spectra of GCs by adopting fullspectrum fitting method using ULySS,a comparison is made between the results of full spectrumfitting and the reference data taken from Harris’s Catalog. It is shows that ULySS is a robust toolfor full spectrum fitting analysis. Finally the relation of age and HBR is represented, it is foundthat the spectroscopic ages are very sensitive to the presence of a blue horizontal branch (BHB) orof blue stragglers. A BHB morphology results in a young SSP-equivalent age. |