Results 31 to 40 of about 10,289 (247)

KMT-2022-BLG-0440Lb: A new q < 10−4 microlensing planet with the central-resonant caustic degeneracy broken [PDF]

Monthly notices of the Royal Astronomical Society, 2023
We present the observations and analysis of a high-magnification microlensing planetary event, KMT-2022-BLG-0440, for which the weak and short-lived planetary signal was covered by both the KMTNet survey and follow-up observations.
Jiyuan Zhang, W. Zang, Y. Jung, Hongjing Yang, A. Gould, T. Sumi, S. Mao, S. Dong, M. Albrow, S. Chung, C. Han, K. Hwang, Y. Ryu, I. Shin, Y. Shvartzvald, J. Yee, S. Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge, Qiyue Qian, Zhuokai Liu, D. Maoz, M. Penny, Wei Zhu, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, I. Bond, H. Fujii, A. Fukui, R. Hamada, Y. Hirao, S. Silva, Y. Itow, R. Kirikawa, I. Kondo, N. Koshimoto, Y. Matsubara, Sho Matsumoto, S. Miyazaki, Y. Muraki, A. Okamura, G. Olmschenk, C. Ranc, N. Rattenbury, Y. Satoh, D. Suzuki, T. Toda, Mio Tomoyoshi, P. Tristram, A. Vandorou, H. Yama, K. Yamashita   +59 more
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KMT-2021-BLG-1077L: The fifth confirmed multiplanetary system detected by microlensing [PDF]

Astronomy & Astrophysics, 2022
Aims. The high-magnification microlensing event KMT-2021-BLG-1077 exhibits a subtle and complex anomaly pattern in the region around the peak. We analyze the lensing light curve of the event with the aim of revealing the nature of the anomaly.
C. Han, A. Gould, I. Bond, Y. Jung, M. Albrow, S. Chung, K. Hwang, Y. Ryu, I. Shin, Y. Shvartzvald, J. Yee, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge, Doeon Kim, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, H. Fujii, A. Fukui, Y. Hirao, Y. Itow, R. Kirikawa, N. Koshimoto, I. Kondo, Y. Matsubara, Sho Matsumoto, S. Miyazaki, Y. Muraki, G. Olmschenk, A. Okamura, C. Ranc, N. Rattenbury, Y. Satoh, S. Silva, T. Sumi, D. Suzuki, T. Toda, P. Tristram, A. Vandorou, H. Yama   +47 more
semanticscholar   +1 more source

KMT-2021-BLG-1898: Planetary microlensing event involved with binary source stars [PDF]

Astronomy & Astrophysics, 2022
Aims. The light curve of the microlensing event KMT-2021-BLG-1898 exhibits a short-term central anomaly with double-bump features that cannot be explained by the usual binary-lens or binary-source interpretations. With the aim of interpreting the anomaly,
C. Han, A. Gould, Doeon Kim, Y. Jung, M. Albrow, S. Chung, K. Hwang, Chung-Uk Lee, Y. Ryu, I. Shin, Y. Shvartzvald, J. Yee, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge   +19 more
semanticscholar   +1 more source

KMT-2021-BLG-0240: Microlensing event with a deformed planetary signal [PDF]

Astronomy & Astrophysics, 2022
The light curve of the microlensing event KMT-2021-BLG-0240 exhibits a short-lasting anomaly with complex features near the peak at the 0.1~mag level from a single-lens single-source model.
C. Han, Doeon Kim, Hongjing Yang, A. Gould, Y. Jung, M. Albrow, S. Chung, K. Hwang, Chung-Uk Lee, Y. Ryu, I. Shin, Y. Shvartzvald, J. Yee, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge   +20 more
semanticscholar   +1 more source

OGLE-2018-BLG-0584 and KMT-2018-BLG-2119: Two microlensing events with two lens masses and two source stars [PDF]

Astronomy & Astrophysics, 2022
We conduct a systematic investigation of the microlensing data collected during the previous observation seasons for the purpose of reanalyzing anomalous lensing events with no suggested plausible models.
C. Han, A. Udalski, Y. Jung, Doeon Kim, Hongjing Yang, M. Albrow, S. Chung, A. Gould, K. Hwang, Hyoun-Woo Kim, Chung-Uk Lee, Y. Ryu, Y. Shvartzvald, I. Shin, J. Yee, W. Zang, S. Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge, Chun-Hwey Kim, Woong Kim, P. Mr'oz, Michał K. Szymański, J. Skowron, R. Poleski, Igor Soszy'nski, P. Pietrukowicz, S. Kozłowski, K. Rybicki, P. Iwanek, K. Ulaczyk, M. Wrona, M. Gromadzki   +36 more
semanticscholar   +1 more source

An Earth-mass planet in a time of COVID-19: KMT-2020-BLG-0414Lb [PDF]

Research in Astronomy and Astrophysics, 2021
We report the discovery of KMT-2020-BLG-0414Lb, with a planet-to-host mass ratio q 2 = 0.9–1.2 × 10−5 = 3–4 ⊕ at 1σ, which is the lowest mass-ratio microlensing planet to date.
W. Zang, Cheongho Han, I. Kondo, J. Yee, Chung-Uk Lee, A. Gould, S. Mao, L. de Almeida, Y. Shvartzvald, Xiangyu Zhang, M. Albrow, Sun-Ju Chung, K. Hwang, Y. Jung, Y. Ryu, I. Shin, S. Cha, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, R. Pogge, J. Drummond, Thiam-Guan Tan, José Dias do Nascimento Júnior, D. Maoz, Matthew T. Penny, Wei Zhu, I. Bond, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, M. Donachie, H. Fujii, A. Fukui, Y. Hirao, Y. Itow, R. Kirikawa, N. Koshimoto, Man Cheung Alex Li, Yutaka Matsubara, Y. Muraki, S. Miyazaki, G. Olmschenk, C. Ranc, N. Rattenbury, Y. Satoh, H. Shoji, S. Silva, T. Sumi, D. Suzuki, Yuzuru Tanaka, P. Tristram, T. Yamawaki, A. Yonehara, A. Petric, T. Burdullis, P. Fouqué   +60 more
semanticscholar   +1 more source

Surgical Site Infections at Shirati KMT Hospital in Northeastern Tanzania

Cureus, 2023
Despite improved guidelines for surgical practices and better surgical methods and tools, surgical site infection (SSI) is still a common cause of morbidity and mortality with increased rates in resource-limited nations.
D. Bayardorj, Pichaya Promsatit, B. Chirangi, Eiman A. Mahmoud   +3 more
semanticscholar   +1 more source

KMT-2021-BLG-1547Lb: Giant microlensing planet detected through a signal deformed due to source binarity

Astronomy & Astrophysics, 2023
Aims. We investigate the previous microlensing data collected by the KMTNet survey in search of anomalous events for which no precise interpretations of the anomalies had been suggested.
C. Han, W. Zang, Y. Jung, I. Bond, S. Chung, M. Albrow, A. Gould, K. Hwang, Y. Ryu, I. Shin, Y. Shvartzvald, Hongjing Yang, J. Yee, S. Cha, Doeon Kim, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, B.-G. Park, R. Pogge, The KMTNet Berto Monard, Qiyue Qian, Zhuokai Liu, D. Maoz, M. Penny, Wei Zhu, F. Abe, R. Barry, D. Bennett, A. Bhattacharya, H. Fujii, A. Fukui, R. Hamada, Y. Hirao, S. Silva, Y. Itow, R. Kirikawa, I. Kondo, N. Koshimoto, Y. Matsubara, S. Miyazaki, Y. Muraki, G. Olmschenk, C. Ranc, N. Rattenbury, Y. Satoh, T. Sumi, D. Suzuki, Mio Tomoyoshi, P. Tristram, A. Vandorou, H. Yama, K. Yamashita   +54 more
semanticscholar   +1 more source

KMT-2018-BLG-1025Lb: microlensing super-Earth planet orbiting a low-mass star [PDF]

Astronomy & Astrophysics, 2021
Aims. We aim to find missing microlensing planets hidden in the unanalyzed lensing events of previous survey data. Methods. For this purpose, we conducted a systematic inspection of high-magnification microlensing events, with peak magnifications of ...
C. Han, A. Udalski, Chung-Uk Lee, M. Albrow, Sun-Ju Chung, A. Gould, K. Hwang, Y. Jung, Doeon Kim, Hyoun-Woo Kim, Y. Ryu, I. Shin, Y. Shvartzvald, J. Yee, W. Zang, 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. Mr'oz, M. Szyma'nski, J. Skowron, R. Poleski, I. Soszy'nski, P. Pietrukowicz, S. Kozłowski, K. Ulaczyk, K. Rybicki, P. Iwanek, M. Wrona   +34 more
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Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets

The Astronomical Journal, 2023
We complete the publication of all microlensing planets (and “possible planets”) identified by the uniform approach of the KMT AnomalyFinder system in the 21 KMT subprime fields during the 2019 observing season, namely, KMT-2019-BLG-0298, KMT-2019-BLG ...
Youn Kil Jung, Weicheng Zang, Hanyue Wang, Cheongho Han, Andrew Gould, Andrzej Udalski, Lead Authors, Michael D. Albrow, Sun-Ju Chung, Kyu-Ha Hwang, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Hongjing Yang, Jennifer C. Yee, 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, Michał K. Szymański, Jan Skowron, Radek Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, The OGLE Collaboration, Jonathan Green, Steve Hennerley, Andrew Marmont, Shude Mao, Dan Maoz, Jennie McCormick, Tim Natusch, Matthew T. Penny, Ian Porritt, Wei Zhu, The Tsinghua and FUN Follow-Up Teams   +45 more
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