activity
19942009
most citedDiscovery of a Jupiter/Saturn Analog with Gravitational Microlensing

366 citations · 1k across the 23 of their papers we have counts for

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Showing 2004Show all

6 papers · 1 filter

astro-ph2004

Search for Low-Mass Exoplanets by Gravitational Microlensing at High Magnification

F. Abe, D. P. Bennett, I. A. Bond +32

Observations of the gravitational microlensing event MOA 2003-BLG-32/OGLE 2003-BLG-219 are presented for which the peak magnification was over 500, the highest yet reported. Contin…

astro-ph2004

Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database

B. M. Peterson, L. Ferrarese, K. M. Gilbert +9

We present improved black hole masses for 35 active galactic nuclei (AGNs) based on a complete and consistent reanalysis of broad emission-line reverberation-mapping data. From obj…

astro-ph2004

Potential Direct Single-Star Mass Measurement

H. Ghosh

We analyze the lightcurve of the microlensing event OGLE-2003-BLG-175/MOA-2003-BLG-45 and show that it has two properties that, when combined with future high resolution astrometry…

astro-ph2004

OGLE-2003-BLG-238: Microlensing Mass Estimate of an Isolated Star

Guangfei Jiang, D. L. DePoy, A. Gal-Yam +38

Microlensing is the only known direct method to measure the masses of stars that lack visible companions. In terms of microlensing observables, the mass is given by M=(c^2/4G)\tild…

astro-ph2004

Photometric Identification of Young Stripped-Core Supernovae

Avishay Gal-Yam, Dovi Poznanski, Dan Maoz +2

We present a method designed to identify the spectral type of young (less than ~30 days after explosion) and nearby (z < ~0.05) supernovae (SNe) using their broad-band colors. In p…

astro-ph2004

Constraints on Planetary Companions in the Magnification A=256 Microlensing Event: OGLE-2003-BLG-423

Jaiyul Yoo, D. L. DePoy, A. Gal-Yam +16

We develop a new method of modeling microlensing events based on a Monte Carlo simulation that incorporates both a Galactic model and the constraints imposed by the observed charac…