activity
19932022
most citedReddening and Extinction Toward the Galactic Bulge from OGLE-III: The Inner Milky Way's Rv ~ 2.5 Extinction Curve

590 citations · 8.8k across the 153 of their papers we have counts for

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Showing 2009Show all

8 papers · 1 filter

astro-ph.EP2009★ 4 cited

Interpretation of Strong Short-Term Central Perturbations in the Light Curves of Moderate-Magnification Microlensing Events

C. Han, K. -H. Hwang, D. Kim +87

To improve the planet detection efficiency, current planetary microlensing experiments are focused on high-magnification events searching for planetary signals near the peak of len…

astro-ph.GA2009★ 13 cited

A Puzzle Involving Galactic Bulge Microlensing Events

Judith G. Cohen, Andrew Gould, Ian B. Thompson +7

We study a sample of 16 microlensed Galactic bulge main sequence turnoff region stars for which high dispersion spectra have been obtained with detailed abundance analyses. We demo…

astro-ph.GA2009★ 6 cited

The Effect of Differential Limb Magnification on Abundance Analysis of Microlensed Dwarf Stars

Jennifer A. Johnson, Subo Dong, Andrew Gould

Finite source effects can be important in observations of gravitational microlensing of stars. Near caustic crossings, for example, some parts of the source star will be more highl…

astro-ph.SR2009★ 20 cited

Limits on Unresolved Planetary Companions to White Dwarf Remnants of 14 Intermediate-Mass Stars

Mukremin Kilic, Andrew Gould, Detlev Koester

We present Spitzer IRAC photometry of white dwarf remnants of 14 stars with M = 3-5 Msol. We do not detect mid-infrared excess around any of our targets. By demanding a 3 sigma pho…

astro-ph.GA2009★ 30 cited

Spectroscopic Confirmation of the Pisces Overdensity

Juna A. Kollmeier, Andrew Gould, Stephen Shectman +6

We present spectroscopic confirmation of the "Pisces Overdensity", also known as "Structure J", a photometric overdensity of RR Lyrae stars discovered by the Sloan Digital Sky Surv…

astro-ph.CO2009★ 132 cited

Lyman-alpha Emission From Cosmic Structure I: Fluorescence

Juna A. Kollmeier, Zheng Zheng, Romeel Davé +4

We present predictions for the fluorescent Lyman-alpha emission signature arising from photoionized, optically thick structures in Smoothed Particle Hydrodynamic (SPH) cosmological…

astro-ph.EP2009★ 36 cited

Detectability of Terrestrial Planets in Multi-Planet Systems: Preliminary Report

Wesley A. Traub, Charles Beichman, Andrew F. Boden +21

We ask if Earth-like planets (terrestrial mass and habitable-zone orbit) can be detected in multi-planet systems, using astrometric and radial velocity observations. We report here…

astro-ph.GA2009★ 36 cited

The EROS2 search for microlensing events towards the spiral arms: the complete seven season results

Y. R. Rahal, C. Afonso, J. -N. Albert +36

The EROS-2 project has been designed to search for microlensing events towards any dense stellar field. The densest parts of the Galactic spiral arms have been monitored to maximiz…