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Structure and Dynamics of the Young Massive Star Cluster Westerlund 1
Lingfeng Wei, Matthew W. Hosek, Jessica R. Lu +8
We present a structural analysis of the young massive star cluster Westerlund 1 (Wd 1). With multi-epoch Hubble Space Telescope (HST) observations, we measure the proper motions of…
The 3D Kinematics of the Orion Nebula Cluster II: Mass-dependent Kinematics of the Inner Cluster
Lingfeng Wei, Christopher A. Theissen, Quinn M. Konopacky +3
We present the kinematic analysis of stars within $4\mbox{$^\prime$}$ from the center of Orion Nebula Cluster (ONC), the closest massive star cluster with active star formati…
Measuring the alpha-abundance of subsolar-metallicity stars in the Milky Way's central half-parsec: testing globular cluster and dwarf galaxy infall scenarios
Rory O. Bentley, Tuan Do, Wolfgang Kerzendorf +4
While the Milky Way Nuclear star cluster has been studied extensively, how it formed is uncertain. Studies have shown it contains a solar and supersolar metallicity population that…
The 3-D Kinematics of the Orion Nebula Cluster: NIRSPEC-AO Radial Velocities of the Core Population
Christopher A. Theissen, Quinn M. Konopacky, Jessica R. Lu +5
The kinematics and dynamics of stellar and substellar populations within young, still-forming clusters provides valuable information for constraining theories of formation mechanis…
Super-Solar Metallicity Stars in the Galactic Center Nuclear Star Cluster: Unusual Sc, V, and Y Abundances
Tuan Do, Wolfgang Kerzendorf, Quinn Konopacky +4
We present adaptive-optics assisted near-infrared high-spectral resolution observations of late-type giants in the nuclear star cluster of the Milky Way. The metallicity and elemen…
A Search for Companions to Brown Dwarfs in the Taurus and Chamaeleon Star Forming Regions
K. O. Todorov, K. L. Luhman, Q. M. Konopacky +5
We present the results of a search for companions to young brown dwarfs in the Taurus and Chamaeleon I star forming regions (1/2-3 Myr). We have used WFPC2 on board HST to obtain F…