NOAO >   Observing Info >   Approved Programs >   2014A-0198

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Proposal Information for 2014A-0198


PI: Jessica Lu, University of Hawaii (IfA), jlu@ifa.hawaii.edu
Address: Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA

CoI: Will Clarkson, University of Michigan, Dearborn

Title: Young Massive Clusters in the Milky Way

Abstract: Young, massive (>10^4 Msun) clusters are excellent laboratories for studying star and cluster formation and the earliest phases of stellar evolution. They represent a more extreme environment than the frequently studied Taurus or Orion regions, with higher densities, hotter temperatures, more feedback, and higher ambient radiation fields. These clusters also provide single-age snapshots of stellar evolution at young ages and across the complete range of stellar masses, include rare phases of massive-star evolution. We propose to observe several young massive clusters and measure their initial mass functions, internal structure and dynamics, and compare their photometric sequences with models of stellar evolution. GeMS/GSAOI is an ideal system to study massive young clusters as it provides high spatial resolution in the NIR to resolve individual stars in these highly extincted regions. Additionally, the increased resolution will allow us to measure very precise relative proper motions that can be used to distinguish between cluster members, with a common proper motion, and contaminating foreground and background stars.


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NOAO >   Observing Info >   Approved Programs >   2014A-0198

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