Results 41 to 50 of about 2,926,316 (134)
KMT-2024-BLG-3237: Another Free-floating Planet Candidate with Angular Einstein Radius Measurement
The Astronomical JournalPlanet-formation theories suggest the presence of free-floating planets (FFPs) that are ejected from their formation sites. While these planets emit very little light, they can be identified through gravitational microlensing.Tanagodchaporn Inyanya, Youn Kil Jung, Hongjing Yang, Kyu-Ha Hwang, Andrew Gould, Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Jennifer C. Yee, Weicheng Zang, Dong-Jin Kim, Chung-Uk Lee, Byeong-Gon Park +15 moredoaj +1 more sourceMass Production of 2023 KMTNet Microlensing Planets. I. Low Mass Ratio
The Astronomical JournalWe initiate the systematic search for planets in the 2023 data of the Korea Microlensing Telescope Network (KMTNet), focusing on those planets found by the KMTNet AnomalyFinder with low preliminary estimates of the mass ratio, q Yoon-Hyun Ryu, Andrzej Udalski, Hongjing Yang, Kyu-Ha Hwang, Weicheng Zang, Yang Huang, Andrew Gould, Michael D. Albrow, Ping Chen, Sun-Ju Chung, Subo Dong, Cheongho Han, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, 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, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, Mariusz Gromadzki, Mateusz J. Mróz +36 moredoaj +1 more sourceFour Cold Giant Planets Discovered by High-cadence Microlensing Surveys
The Astronomical JournalWe report the discovery of four cold giant planets identified through the analysis of microlensing events detected by high-cadence surveys: OGLE-2016-BLG-0261, KMT-2025-BLG-0026, KMT-2025-BLG-0030, and KMT-2025-BLG-2272.Cheongho Han, Chung-Uk Lee, Andrzej Udalski, Ian A. Bond, (Leading authors), 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, Seung-Lee Kim, Dong-Joo Lee, Sang-Mok Cha, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, (KMTNet Collaboration), 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, (The OGLE Collaboration), David P. Bennett, Chihiro Ueda, Ryusei Hamada, Yuki Hirao, Shuma Makida, Shota Miyazaki, Tutumi Nagai, Seiya Nakayama, Kansuke Nunota, Ryo Ogawa, Ryunosuke Oishi, Hideaki Ose, Nicholas J. Rattenbury, Yuki K. Satoh, Takahiro Sumi, Daisuke Suzuki, Motohide Tamura, Takuto Tamaoki, Hibiki Yama, (The PRIME Collaboration) +58 moredoaj +1 more sourceSystematic KMTNet Planetary Anomaly Search. XIII. Complete Sample of 2021 Prime Field Planets
The Astronomical JournalThe Systematic KMTNet Planetary Anomaly Search series was conducted using the KMTNet data archived from 2016–2019. From this first phase of the series, we reported a total of 50 planetary systems hidden in the data archive, which represent about 35% of ...In-Gu Shin, Jennifer C. Yee, Weicheng Zang, Cheongho Han, Andrew Gould, Shude Mao, Chung-Uk Lee, Yoon-Hyun Ryu, Ian A. Bond, Takahiro Sumi, (Leading authors), Michael D. Albrow, Sun-Ju Chung, Kyu- Ha Hwang, Youn Kil Jung, Yossi Shvartzvald, Hongjing Yang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, (The KMTNet Collaboration), Fumio Abe, David P. Bennett, Aparna Bhattacharya, Ryusei Hamada, Yuki Hirao, Stela Ishitani Silva, Shota Miyazaki, Yasushi Muraki, Kansuke NUNOTA, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki K. Satoh, Daisuke Suzuki, Takuto Tamaoki, Sean K. Terry, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, (the MOA Collaboration) +44 moredoaj +1 more sourceGaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-velocity Characterization
The Astronomical JournalWe report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensing fields. Our primary analysis yields a Jovian planet with ${M}_{{\rm{p}}}=Zexuan Wu, Subo Dong, Tuan Yi, Zhuokai Liu, Kareem El-Badry, Andrew Gould, L. Wyrzykowski, K. A. Rybicki, Etienne Bachelet, Grant W. Christie, L. de Almeida, L. A. G. Monard, J. McCormick, Tim Natusch, P. Zieliński, Huiling Chen, Yang Huang, Chang Liu, A. Mérand, Przemek Mróz, Jinyi Shangguan, Andrzej Udalski, J. Woillez, Huawei Zhang, Franz-Josef Hambsch, P. J. Mikołajczyk, M. Gromadzki, M. Ratajczak, Katarzyna Kruszyńska, N. Ihanec, Uliana Pylypenko, M. Sitek, K. Howil, Staszek Zola, Olga Michniewicz, Michal Zejmo, Fraser Lewis, Mateusz Bronikowski, Stephen Potter, Jan Andrzejewski, Jaroslav Merc, Rachel Street, Akihiko Fukui, R. Figuera Jaimes, V. Bozza, P. Rota, A. Cassan, M. Dominik, Y. Tsapras, M. Hundertmark, J. Wambsganss, K. Bąkowska, A. Słowikowska +52 moredoaj +1 more sourceKMT-2023-BLG-2669: Ninth Free-floating Planet Candidate with θ E Measurements
The Astronomical JournalWe report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short duration (≲3 days) and a small amplitude (≲0.7 mag). From the analysis, we find Youn Kil Jung, Kyu-Ha Hwang, Hongjing Yang, Andrew Gould, Jennifer C. Yee, Cheongho Han, Michael D. Albrow, Sun-Ju Chung, Yoon-Hyun Ryu, In-Gu Shin, 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 +19 moredoaj +1 more sourceExoplanet searches with gravitational microlensing [PDF]
, 2010 Different regimes of gravitational lensing depend on
lens masses and roughly correspond to angular dis-
tance between images. If a gravitational lens has a
typical stellar mass, this regime is named microlens-
ing because the typical angular distance P.h. Jetzer, A. F. Zakharov, S. Calchi Novati, INGROSSO, Gabriele, DE PAOLIS, Francesco, NUCITA, Achille +5 morecore Mass Production of 2023 KMTNet Microlensing Planets. II. Two Planets and A Brown Dwarf
The Astronomical JournalTo expand the homogeneous microlensing planetary sample of the Korea Microlensing Telescope Network (KMTNet), we investigate six planetary candidates identified by the AnomalyFinder search in the 2023 prime-field data, namely KMT-2023-BLG-1592, OGLE-2023-Zhixing Li, Hongyu Li, Weicheng Zang, Yoon-Hyun Ryu, Andrzej Udalski, Takahiro Sumi, Hongjing Yang, Yuchen Tang, Jiyuan Zhang, Shude Mao, (Leading Authors), Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Cheongho Han, Kyu- Ha Hwang, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, 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), Przemek Mróz, Michał K. Szymański, Jan Skowron, Radoslaw Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof A. Rybicki, Patryk Iwanek, Krzysztof Ulaczyk, Marcin Wrona, Mariusz Gromadzki, Mateusz J. Mróz, (The OGLE Collaboration), Fumio Abe, Ken Bando, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Akihiko Fukui, Ryusei Hamada, Shunya Hamada, Naoto Hamasak, Yuki Hirao, Stela Ishitani Silva, Naoki Koshimoto, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Tutumi Nagai, Kansuke Nunota, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Daisuke Suzuki, Sean Terry, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, (The MOA Collaboration) +69 moredoaj +1 more sourceCommunity Involvement in the WFIRST Exoplanet Microlensing Survey
, 2019 International audienceWFIRST is NASA's first flagship mission with pre-defined core science programs to study dark energy and perform a statistical census of wide orbit exoplanets with a gravitational microlensing survey.Jacklin, Savannah, Quintana, Elisa, Bennett, David P., Henderson, Calen B., Ranc, Clement, Bozza, Valerio, Gaudi, B. Scott, Poleski, Radek, Colon, Knicole, Suzuki, Daisuke, Sumi, Takahiro, Calchi Novati, Sebastiano, Lu, Jessica, Barclay, Thomas, Koshimoto, Naoki, Beaulieu, Jean-Phillipe, Akeson, Rachel, Boyd, Padi, Street, Rachel, Bryden, Geoffrey, Penny, Matthew, Sahu, Kailash C., Bhattacharya, Aparna, Hirao, Yuki, Yee, Jennifer +24 morecore +2 more sources
