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METALLICITIES, AGE-METALLICITY RELATIONSHIPS, AND KINEMATICS OF RED GIANT BRANCH STARS IN THE OUTER DISK OF THE LARGE MAGELLANIC CLOUD
2011
Astronomical Journal
The outer disk of the LMC is studied in order to unveil clues about its formation and evolution. Complementing our previous studies in innermost fields (3<R<7 kpc), we obtained deep color magnitude diagrams in 6 fields with radius from 5.2 to 9.2 kpc. The comparison with isochrones shows that while the oldest population is approximately coeval in all fields, the age of the youngest populations increases with increasing radius. Low-resolution spectroscopy in the infrared CaII triplet region has
doi:10.1088/0004-6256/142/2/61
fatcat:rsxwb5zfpfhmlnlp3fqhzyktcy