112 citations · 183 across the 5 of their papers we have counts for
6 papers · 1 filter
Multiple protostellar systems. II. A high resolution near-infrared imaging survey in nearby star-forming regions
G. Duchêne, S. Bontemps, J. Bouvier +3
(abridged) Our project endeavors to obtain a robust view of multiplicity among embedded Class I and Flat Spectrum protostars in a wide array of nearby molecular clouds to disentang…
Dynamical Masses for Pre-Main Sequence Stars: A Preliminary Physical Orbit for V773 Tau A
A. F. Boden, G. Torres, A. I. Sargent +9
We report on interferometric and radial-velocity observations of the double-lined 51-d period binary (A) component of the quadruple pre-main sequence (PMS) system V773 Tau. With th…
A Constant Spectral Index for Sagittarius A* During Infrared/X-ray Intensity Variations
S. D. Hornstein, K. Matthews, A. M. Ghez +5
We report the first time-series of broadband infrared (IR) color measurements of Sgr A*, the variable emission source associated with the supermassive black hole at the Galactic Ce…
The proper motion of the Arches cluster with Keck Laser-Guide Star Adaptive Optics
Andrea Stolte, Andrea M. Ghez, Mark Morris +3
We present the first measurement of the proper motion of the young, compact Arches cluster near the Galactic center from near-infrared adaptive optics (AO) data taken with the rece…
Measuring the Mass of a Pre-Main Sequence Binary Star Through the Orbit of TWA 5A
Q. M. Konopacky, A. M. Ghez, G. Duchene +2
We present the results of a five year monitoring campaign of the close binary TWA 5Aab in the TW Hydrae association, using speckle and adaptive optics on the W.M. Keck 10 m telesco…
Photometric Stellar Variability in the Galactic Center
M. Rafelski, A. M. Ghez, S. D. Hornstein +2
We report the results of a diffraction-limited, photometric variability study of the central 5"x5" of the Galaxy conducted over the past 10 years using speckle imaging techniques o…