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Photometric Properties of the Near-contact Binary GW Geminorum
Jae Woo Lee, Seung-Lee Kim, Chung-Uk Lee +4
New multiband CCD photometry is presented for the eclipsing binary GW Gem; the light curves are the first ever compiled. Four new minimum timings have been determined. Our ana…
The sdB+M Eclipsing System HW Virginis and its Circumbinary Planets
Jae Woo Lee, Seung-Lee Kim, Chun-Hwey Kim +4
For the very short-period sdB eclipsing binary HW Vir, we present new CCD photometry made from 2000 through 2008. In order to obtain consistency of the binary parameters, our new l…
Microlensing Detections of Planets in Binary Stellar Systems
Dong-Wook Lee, Chung-Uk Lee, Byeong-Gon Park +4
We demonstrate that microlensing can be used for detecting planets in binary stellar systems. This is possible because in the geometry of planetary binary systems where the planet…
Microlensing Sensitivity to Earth-mass Planets in the Habitable Zone
Byeong-Gon Park, Young-Beom Jeon, Chung-Uk Lee +1
Microlensing is one of the most powerful methods that can detect extrasolar planets and a future space-based survey with a high monitoring frequency is proposed to detect a large s…
Properties of Planet-induced Deviations in the Astrometric Microlensing Centroid Shift Trajectory
Cheongho Han, Chunguk Lee
In this paper, we investigate the properties of the planet-induced deviations in the trajectory of the microlensed source star centroid motion (astrometric curve) and the correlati…