Results 101 to 110 of about 130 (112)

OGLE-2014-BLG-1186: gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source? [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
(abridged) Using the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale $t_\mathrm{E}$ ~ 300 d, we present a methodology for identifying the nature of localised deviations from single-lens point-source light curves, which ensures that 1) the claimed signal is substantially above the noise floor, 2) the inferred ...
M Dominik, R A Street, Cheongho Han
exaly   +15 more sources

OGLE-2016-BLG-1003: First Resolved Caustic-crossing Binary-source Event Discovered by Second-generation Microlensing Surveys [PDF]

Astrophysical Journal, 2017
Abstract We report the analysis of the first resolved caustic-crossing binary-source microlensing event OGLE-2016-BLG-1003. The event is densely covered by round-the-clock observations of three surveys. The light curve is characterized by two nested caustic-crossing features, which is unusual for typical caustic-crossing perturbations ...
Youn Kil Jung, I A Bond, Jennifer C Yee
exaly   +5 more sources

PROPERTIES OF MICROLENSING CENTRAL PERTURBATIONS BY PLANETS IN BINARY STELLAR SYSTEMS UNDER THE STRONG FINITE-SOURCE EFFECT [PDF]

Astrophysical Journal, 2010
12 pages, 3 figures, accepted for publication in ...
Sun-Ju Chung, Byeong-Gon Park
exaly   +3 more sources

Effect of Binary Source Companions on the Microlensing Optical Depth Determination toward the Galactic Bulge Field

Astrophysical Journal, 2005
Currently, gravitational microlensing survey experiments toward the Galactic bulge field utilize two different methods of minimizing blending effect for the accurate determination of the optical depth τ. One is measuring τbased on clump giant (CG) source stars and the other is using `Difference Image Analysis (DIA)' photometry to measure the unblended ...
Cheongho Han
exaly   +3 more sources

Three Binary-source Binary-lens Microlensing Events from the 2024 Microlensing Campaign

Publications of the Astronomical Society of the Pacific
Abstract We investigated microlensing events detected by the Optical Gravitational Lensing Experiment (OGLE) and Korea Microlensing Telescope Network surveys during the 2024 observing season, focusing on those that exhibit very complex anomaly features.
Cheongho Han, Chung-Uk Lee, Andrzej Udalski, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Youn Kil Jung, Kyu- Ha Hwang, Yoon-Hyun Ryu, Yossi Shvartzvald, In-Gu Shin, Jennifer C. Yee, Weicheng Zang, Hongjing Yang, Doeon Kim, Dong-Jin Kim, Byeong-Gon Park, Przemek Mróz, Michał K. Szymański, Jan Skowron, Radosław Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof A. Rybicki, Patryk Iwanek, Krzysztof Ulaczyk, Marcin Wrona, Mariusz Gromadzki, Mateusz J. Mróz   +29 more
exaly   +3 more sources

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Binary Lenses and Binary Sources in Microlensing

2009
Abstract
openaire  

Effects of gravitational microlensing of binary and multiple stars

Astrophysics and Space Science, 1995
M V Sazhin, Sazhin M V
exaly  

DISTINGUISHING BETWEEN PLANETARY AND BINARY INTERPRETATIONS OF MICROLENSING CENTRAL PERTURBATIONS UNDER THE SEVERE FINITE-SOURCE EFFECT

Astrophysical Journal, 2009
Cheongho Han
exaly  

Microlensing Surveys for Exoplanets

Annual Review of Astronomy and Astrophysics, 2012
B Scott Gaudi
exaly  

On the Minimum Magnification between Caustic Crossings for Microlensing by Binary and Multiple Stars

Astrophysical Journal, 1995
Shude Mao
exaly