1.6k citations · 3.9k across the 14 of their papers we have counts for
14 papers
Stellar Populations in the Central 0.5 pc of Our Galaxy III: The Dynamical Sub-structures
Siyao Jia, Ningyuan Xu, Jessica R. Lu +12
We measure the 3D kinematic structures of the young stars within the central 0.5 parsec of our Galactic Center using the 10 m telescopes of the W.~M.~Keck Observatory over a time s…
The Galactic Center: Improved Relative Astrometry for Velocities, Accelerations, and Orbits near the Supermassive Black Hole
Siyao Jia, Jessica R. Lu, S . Sakai +11
We present improved relative astrometry for stars within the central half parsec of our Galactic Center based on data obtained with the 10 m W. M. Keck Observatory from 1995 to 201…
The Post-Periapse Evolution of Galactic Center Source G1: The second case of a resolved tidal interaction with a supermassive black hole
Gunther Witzel, Breann. N. Sitarski, Andrea M. Ghez +13
We present new Adaptive Optics (AO) imaging and spectroscopic measurements of Galactic Center source G1 from W. M. Keck Observatory. Our goal is to understand its nature and relati…
Keck Adaptive Optics Observations of the Protostellar Disk around Radio Source I in the Orion Kleinmann-Low Nebula
Breann N. Sitarski, Mark R. Morris, Jessica R. Lu +5
We have made the first detection of a near-infrared counterpart associated with the disk around Radio Source "I," a massive protostar in the Kleinmann-Low Nebula in Orion using ima…
The Shortest Known Period Star Orbiting our Galaxy's Supermassive Black Hole
L. Meyer, A. M. Ghez, R. Schoedel +7
Stars with short orbital periods at the center of our galaxy offer a powerful and unique probe of a supermassive black hole. Over the past 17 years, the W. M. Keck Observatory has…
Early Science with SOFIA, the Stratospheric Observatory for Infrared Astronomy
E. T. Young, E. E. Becklin, P. M. Marcum +38
The Stratospheric Observatory for Infrared Astronomy (SOFIA) is an airborne observatory consisting of a specially modified Boeing 747SP with a 2.7-m telescope, flying at altitudes…