Searching for Multiple Populations in Ruprecht 106
  More than a decade has passed since the definition of Globular Cluster (GC)
changed, and now we know that they host Multiple Populations (MPs). But few GCs
do not share that behaviour and Ruprecht 106 is one of these clusters. We
analyzed thirteen member red giant branch stars using spectra in the wavelength
range 6120-6405 Angstroms obtained through the GIRAFFE Spectrograph, mounted at
UT2 telescope at Paranal, as well as the whole cluster using C, V, R and I
photometry obtained through the Swope telescope at Las Campanas. Atmospheric
parameters were determined from the photometry to determine Fe and Na
abundances. A photometric analysis searching for MPs was also carried out. Both
analyses confirm that Ruprecht 106 is indeed one on the few GCs to host Simple
Stellar Population, in agreement with previous studies. Finally, a dynamical
study concerning its orbits was carried out to analyze the possible extra
galactic origin of the Cluster. The orbital integration indicates that this GC
belongs to the inner halo, while an Energy plane shows that it cannot be
accurately associated with any known extragalactic progenitor.
