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On the Difference in Statistical Behavior Between Astrometric and Radial-Velocity Planet Detections
Andrew Gould
Astrometric and radial-velocity planet detections track very similar motions, and one generally expects that the statistical properties of the detections would also be similar afte…
Recent Developments in Gravitational Microlensing
Andrew Gould
Twenty-one years after Bohdan's seminal paper launched the field of gravitational microlensing, it has radically diversified from a method narrowly focused on finding dark matter t…
Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in OGLE-2007_BLG-349S
Judith G. Cohen, Wenjin Huang, A. Udalski +2
We present an abundance analysis based on high dispersion and high signal-to-noise ratio Keck spectra of a very highly microlensed Galactic bulge dwarf, OGLE-2007-BLG-349S, with Te…
Hexadecapole Approximation in Planetary Microlensing
Andrew Gould
The frequency of microlensing planet detections, particularly in difficult-to-model high-magnification events, is increasing. Their analysis can require tens of thousands of proces…