Role of host galaxy in the formation of multiple stellar populations:
  Analysis of NGC 1786 and NGC 1898
  Even after decades of research, the origin of multiple stellar populations in
globular clusters remains enigmatic. The question as to whether the galaxy
environment plays a role in their formation remains unanswered. To that extent,
we analysed two classical (> 10 Gyr old) Large Magellanic Cloud globular
clusters namely, NGC 1786 and NGC 1898, using imaging data from Hubble Space
Telescope to compare and contrast them with ancient Galactic globular clusters
to assess systematic differences that might exist between their abundance
variations. We calculated their Red Giant Branch width, subtracted the effect
of metallicity and compared it with the available data on Galactic globular
clusters by plotting them against initial and current cluster mass. We see that
the two clusters follow the same general trend as that of the Galactic globular
clusters and Galactic globular clusters from different progenitors follow the
same general trend as one another, indicating that the galaxy environment may
only play a minor role in the formation of multiple stellar populations within
globular clusters.
