activity
20092026
most citedChemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. V. Evidence for a wide age distribution and a complex MDF

494 citations · 6.3k across the 209 of their papers we have counts for

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Showing 2014Show all

9 papers · 1 filter

astro-ph.EP2014★ 32 cited

Can the masses of isolated planetary-mass gravitational lenses be measured by terrestrial parallax?

M. Freeman, L. C. Philpott, F. Abe +22

Recently Sumi et al. (2011) reported evidence for a large population of planetary-mass objects (PMOs) that are either unbound or orbit host stars in orbits > 10 AU. Their result wa…

astro-ph.EP2014★ 129 cited

Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events

S. Calchi Novati, A. Gould, A. Udalski +82

We present microlens parallax measurements for 21 (apparently) isolated lenses observed toward the Galactic bulge that were imaged simultaneously from Earth and Spitzer, which was…

astro-ph.EP2014★ 36 cited

OGLE-2011-BLG-0265Lb: a Jovian Microlensing Planet Orbiting an M Dwarf

J. Skowron, I. -G. Shin, A. Udalski +121

We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planet…

astro-ph.EP2014★ 116 cited

A Terrestrial Planet in a ~1 AU Orbit Around One Member of a ~15 AU Binary

A. Gould, A. Udalski, I. -G. Shin +61

We detect a cold, terrestrial planet in a binary-star system using gravitational microlensing. The planet has low mass (2 Earth masses) and lies projected at ~ 0.8 a…

astro-ph.SR2014★ 57 cited

OGLE-2013-BLG-0102LA,B: Microlensing binary with components at star/brown-dwarf and brown-dwarf/planet boundaries

Y. K. Jung, A. Udalski, T. Sumi +51

We present the analysis of the gravitational microlensing event OGLE-2013-BLG-0102. The light curve of the event is characterized by a strong short-term anomaly superposed on a smo…

astro-ph.EP2014★ 10 cited

OGLE-2012-BLG-0455/MOA-2012-BLG-206: Microlensing event with ambiguity in planetary interpretations caused by incomplete coverage of planetary signal

H. Park, C. Han, A. Gould +55

Characterizing a microlensing planet is done from modeling an observed lensing light curve. In this process, it is often confronted that solutions of different lensing parameters r…