NOAO >   Observing Info >   Approved Programs >   2017B-0310

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Program Information for 2017B-0310


PI: Randa Asa'D, American University of Sharjah, raasad@aus.edu
Address: Physics Department, P.O.Box 26666, Sharjah UAE

CoI: Igor Chilingarian, Harvard-Smithsonian Center for Astrophysics

Title: Chemical Enrichment History of the LMC Traced by its Star Clusters

Abstract: We propose to observe 37 LMC star clusters in order to get their age and metallicity for deriving the star formation and chemical enrichment history of the LMC. Star clusters can be used for tracing the chemical composition of their host galaxy, they could serve as snapshots of their formation time. The LMC is superior to our Galaxy for this study because it is relatively small and the dynamical processes in its disk (that mix stellar populations, such as radial migration) are negligible. Because the LMC is a dwarf galaxy, it experienced only few (if any) minor mergers with gas-rich satellites that brought metal-poor gas into it and affected the chemical enrichment history. Our scientific goal is to observe a large sample of 37 young-to-intermediate age star clusters at different radial positions in the LMC disk and obtain their ages and metallicities in order to measure the radial [Fe/H] gradients at different ages and choose the corresponding metal enrichment history among those computed from several predicted SFHs.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2017B):  SOAR/Goodman -- 3n on Jan 07 - Jan 09 2018


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NOAO >   Observing Info >   Approved Programs >   2017B-0310

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