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Planets Around Low-Mass Stars (PALMS). VI. Discovery of a Remarkably Red Planetary-Mass Companion to the AB Dor Moving Group Candidate 2MASS J22362452+4751425
Brendan Bowler, Michael Liu, Dimitri Mawet +11
We report the discovery of an extremely red planetary-mass companion to 2MASS J22362452+4751425, a 0.6 late-K dwarf likely belonging to the 120 Myr AB Do…
Observational constraints on the formation and evolution of the Milky Way nuclear star cluster with Keck and Gemini
Tuan Do, Andrea Ghez, Mark Morris +7
Due to its proximity, the Milky Way nuclear star cluster provides us with a wealth of data not available in other galactic nuclei. In particular, with adaptive optics, we can obser…
Constraining the Variability and Binary Fraction of Galactic Center Young Stars
Abhimat K. Gautam, Tuan Do, Andrea M. Ghez +6
We present constraints on the variability and binarity of young stars in the central 10 arcseconds (~0.4 pc) of the Milky Way Galactic Center (GC) using Keck Adaptive Optics data o…
`imaka - a ground-layer adaptive optics system on Maunakea
Mark Chun, Olivier Lai, Douglas Toomey +12
We present the integration status for `imaka, the ground-layer adaptive optics (GLAO) system on the University of Hawaii 2.2-meter telescope on Maunakea, Hawaii. This wide-field GL…
The InfraRed Imaging Spectrograph (IRIS) for TMT: latest science cases and simulations
Shelley A. Wright, Gregory Walth, Tuan Do +36
The Thirty Meter Telescope (TMT) first light instrument IRIS (Infrared Imaging Spectrograph) will complete its preliminary design phase in 2016. The IRIS instrument design includes…
An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis
A. Boehle, A. M. Ghez, R. Schödel +11
We present new, more precise measurements of the mass and distance of our Galaxy's central supermassive black hole, Sgr A*. These results stem from a new analysis that more than do…