Results 41 to 50 of about 10,289 (247)
Systematic KMTNet Planetary Anomaly Search. VII. Complete Sample of q < 10−4 Planets from the First 4 yr Survey
The Astronomical Journal, 2023 We present the analysis of seven microlensing planetary events with planet/host mass ratios q < 10 ^−4 : KMT-2017-BLG-1194, KMT-2017-BLG-0428, KMT-2019-BLG-1806, KMT-2017-BLG-1003, KMT-2019-BLG-1367, OGLE-2017-BLG-1806, and KMT-2016-BLG-1105.Weicheng Zang, Youn Kil Jung, Hongjing Yang, Xiangyu Zhang, Andrzej Udalski, Jennifer C. Yee, Andrew Gould, Shude Mao, Leading Authors, Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Sang-Mok Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, The KMTNet Collaboration, Przemek Mróz, Jan Skowron, Radoslaw Poleski, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, Mariusz Gromadzki, The OGLE Collaboration, Hanyue Wang, Jiyuan Zhang, Wei Zhu, The MAP Collaboration +42 moredoaj +1 more sourceKMT-2019-BLG-1715: Planetary Microlensing Event with Three Lens Masses and Two Source Stars [PDF]
Astronomical Journal, 2021 We investigate the gravitational microlensing event KMT-2019-BLG-1715, the light curve of which shows two short-term anomalies from a caustic-crossing binary-lensing light curve: one with a large deviation and the other with a small deviation.C. Han, A. Udalski, Doeon Kim, Youn Kil Jung, Chung-Uk Lee, I. Bond, M. Albrow, Sun-Ju Chung, A. Gould, K. Hwang, Hyoun-Woo Kim, Y. Ryu, I. Shin, Y. Shvartzvald, W. Zang, J. Yee, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, R. Pogge, Chun-Hwey Kim, Woong-Tae Kim, P. Mróz, M. Szymański, J. Skowron, R. Poleski, I. Soszyński, P. Pietrukowicz, S. Kozłowski, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona, M. Gromadzki, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, M. Donachie, H. Fujii, A. Fukui, Y. Itow, Y. Hirao, R. Kirikawa, I. Kondo, M. Cheung Alex Li, Y. Matsubara, Y. Muraki, S. Miyazaki, C. Ranc, N. Rattenbury, Y. Satoh, H. Shoji, H. Suematsu, T. Sumi, D. Suzuki, Yuzuru Tanaka, P. Tristram, T. Yamakawa, T. Yamawaki, A. Yonehara +63 moresemanticscholar +1 more sourceMass Production of 2021 KMTNet Microlensing Planets. III. Analysis of Three Giant Planets
The Astronomical Journal, 2022 We present the analysis of three more planets from the KMTNet 2021 microlensing season. KMT-2021-BLG-0119Lb is a ∼6 M _Jup planet orbiting an early M dwarf or a K dwarf, KMT-2021-BLG-0192Lb is a ∼2 M _Nep planet orbiting an M dwarf, and KMT-2021-BLG ...In-Gu Shin, Jennifer C. Yee, Andrew Gould, Kyu-Ha Hwang, Hongjing Yang, Ian A. Bond, (Leading Authors), Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Youn Kil Jung, Yoon-Hyun Ryu, Yossi Shvartzvald, Weicheng Zang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, (The KMTNet Collaboration), Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Hirosane Fujii, Akihiko Fukui, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Yasushi Muraki, Arisa Okamura, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Taiga Toda, Paul . J. Tristram, Aikaterini Vandorou, Hibiki Yama, (The MOA Collaboration) +50 moredoaj +1 more sourceKMT-2019-BLG-0371 and the Limits of Bayesian Analysis [PDF]
, 2021 We show that the perturbation at the peak of the light curve of microlensing event KMT-2019-BLG-0371 is explained by a model with a mass ratio between the host star and planet of q ∼ 0.08.Yun-Hak Kim, Sun-Ju Chung, J. Yee, A. Udalski, I. Bond, Y. Jung, A. Gould, M. Albrow, C. Han, K. Hwang, Y. Ryu, I. Shin, Y. Shvartzvald, W. Zang, S. Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, R. Pogge, R. Poleski, P. Mróz, J. Skowron, M. Szymański, I. Soszyński, P. Pietrukowicz, S. Kozłowski, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona, M. Gromadzki, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, M. Donachie, H. Fujii, A. Fukui, Y. Itow, Y. Hirao, R. Kirikawa, I. Kondo, N. Koshimoto, Y. Matsubara, Y. Muraki, S. Miyazaki, C. Ranc, N. Rattenbury, Y. Satoh, H. Shoji, T. Sumi, D. Suzuki, P. Tristram, Yuzuru Tanaka, T. Yamawaki, A. Yonehara +59 moresemanticscholar +1 more sourceKMT-2017-BLG-2820 and the Nature of the Free-floating Planet Population [PDF]
Astronomical Journal, 2020 We report a new free-floating planet (FFP) candidate, KMT-2017-BLG-2820, with Einstein radius θ E ≃ 6 μas, lens-source relative proper motion μ rel ≃ 8 mas yr−1, and Einstein timescale t E = 6.5 hr. It is the third FFP candidate found in an ongoing study Y. Ryu, P. Mróz, A. Gould, K. Hwang, Hyoun-Woo Kim, J. Yee, M. Albrow, Sun-Ju Chung, Y. Jung, I. Shin, Y. Shvartzvald, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, C. Han, R. Pogge, A. Udalski, R. Poleski, J. Skowron, M. Szymański, I. Soszy'nski, P. Pietrukowicz, S. Kozłowski, K. Ulaczyk, K. Rybicki, P. Iwanek +30 moresemanticscholar +1 more sourceShortest Microlensing Event with a Bound Planet: KMT-2016-BLG-2605 [PDF]
Astronomical Journal, 2021 With a planet–host mass ratio q = 0.012 ± 0.001, KMT-2016-BLG-2605 has the shortest Einstein timescale, t E = 3.41 ± 0.13 days, of any planetary microlensing event to date.Y. Ryu, K. Hwang, A. Gould, J. Yee, M. Albrow, Sun-Ju Chung, C. Han, Y. Jung, Hyoun-Woo Kim, I. Shin, Y. Shvartzvald, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, R. Pogge +19 moresemanticscholar +1 more sourceMass Production of 2021 KMTNet Microlensing Planets II
The Astronomical Journal, 2023 We continue our program of publishing all planets (and possible planets) found by eye in 2021 Korea Microlensing Telescope Network (KMTNet) online data. We present four planets (KMT-2021-BLG-0712Lb, KMT-2021-BLG-0909Lb, KMT-2021-BLG-2478Lb, and KMT-2021 ...Yoon-Hyun Ryu, In-Gu Shin, Hongjing Yang, Andrew Gould, Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, Yossi Shvartzvald, Jennifer C. Yee, Weicheng Zang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge +19 moredoaj +1 more sourceKMT-2019-BLG-2073: Fourth Free-floating Planet Candidate with θ E < 10 μas [PDF]
, 2020 We analyze the very short Einstein timescale (t E ≃ 7 hr) event KMT-2019-BLG-2073. Making use of the pronounced finite-source effects generated by the clump giant source, we measure the Einstein radius θ E ≃ 4.8 μas and so infer a mass M=59M⊕(πrel/16μas)−Hyoun-Woo Kim, K. Hwang, A. Gould, J. Yee, Y. Ryu, M. Albrow, Sun-Ju Chung, C. Han, Youn Kil Jung, Chung-Uk Lee, I. Shin, Y. Shvartzvald, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, R. Pogge +19 moresemanticscholar +1 more source