Results 11 to 20 of about 142 (95)
First Resolution of Microlensed Images of a Binary-lens Event [PDF]
The Astrophysical JournalWe resolve the multiple images of the binary-lens microlensing event ASASSN-22av using the GRAVITY instrument of the Very Large Telescope Interferometer (VLTI).Zexuan Wu, Subo Dong, A. Mérand, Christopher S. Kochanek, Przemek Mróz, Jinyi Shangguan, Grant Christie, Thiam-Guan Tan, Thomas Bensby, Joss Bland-Hawthorn, Sven Buder, Frank Eisenhauer, Andrew P. Gould, Janez Kos, Tim Natusch, Sanjib Sharma, Andrzej Udalski, J. Woillez, David A. H. Buckley, I. B. Thompson, Karim Abd El Dayem, Anthony Berdeu, Jean-Philippe Berger, Guillaume Bourdarot, Wolfgang Brandner, Richard I. Davies, Denis Defrère, Catherine Dougados, Antonia Drescher, Andreas Eckart, Maximilian Fabricius, Helmut Feuchtgruber, Natascha M. Förster Schreiber, Paulo Garcia, Reinhard Genzel, Stefan Gillessen, Gernot Heißel, Sebastian Hönig, Mathis Houlle, Pierre Kervella, Laura Kreidberg, Sylvestre Lacour, Olivier Lai, Romain Laugier, Jean-Baptiste Le Bouquin, James Leftley, Bruno Lopez, Dieter Lutz, Felix Mang, Florentin Millour, Miguel Montargès, Hugo Nowacki, Mathias Nowak, Thomas Ott, Thibaut Paumard, Karine Perraut, Guy Perrin, Romain Petrov, Pierre-Olivier Petrucci, Nicolas Pourre, Sebastian Rabien, Diogo C. Ribeiro, Sylvie Robbe-Dubois, Matteo Sadun Bordoni, Daryl Santos, Jonas Sauter, Jules Scigliuto, Taro T. Shimizu, Christian Straubmeier, Eckhard Sturm, Matthias Subroweit, Calvin Sykes, Linda Tacconi, Frédéric Vincent, Felix Widmann, the GRAVITY+ collaboration +75 moredoaj +14 more sourcesA Close Binary Lens Revealed by the Microlensing Event Gaia20bof
The Astronomical JournalDuring the last 25 yr, hundreds of binary stars and planets have been discovered toward the Galactic bulge by microlensing surveys. Thanks to a new generation of large-sky surveys, it is now possible to regularly detect microlensing events across the ...E. Bachelet, P. Rota, V. Bozza, P. Zieliński, Y. Tsapras, M. Hundertmark, J. Wambsganss, Ł. Wyrzykowski, P. J. Mikołajczyk, R. A. Street, R. Figuera Jaimes, A. Cassan, M. Dominik, D. A. H. Buckley, S. Awiphan, N. Nakhaharutai, S. Zola, K. A. Rybicki, M. Gromadzki, K. Howil, N. Ihanec, M. Jabłońska, K. Kruszyńska, K. Kruszyńska, U. Pylypenko, M. Ratajczak, M. Sitek, M. Rabus +27 moredoaj +9 more sourcesGaia20fnr: A binary-lens microlensing event with full orbital motion revealed by four space telescopes
Astronomy & AstrophysicsThe microlensing event Gaia20fnr is a long-duration, non-caustic-crossing binary-lens event located at a high Galactic latitude. Triggered by a photometric rise detected by the Gaia space mission, the event was followed up with observations from multiple Wicker M., Wyrzykowski Ł., Hundertmark M., Rybicki K. A., Zieliński P., Stonkutė E., Gromadzki M., Maskoliūnas M., Ihanec N., Ratajczak M., Bachelet E., Kruszyńska K., Dominik M., Buckley D. A. H., Gezer I., Chené A.-N., Mikołajczyk P., Kotysz K., Majumdar J., Pakštiene E., Zdanavičius J., Čepas V., Jonauskaitė U., Bozza V., Cassan A., Figuera Jaimes R., Rabus M., Rota P., Street R. A., Tsapras Y., Wambsganss J., Awiphan S., Brincat S. M., Budzik Z., Davidson J. W., Dymock R., Galdies C., Godunova V., Hambsch F.-J., Jablonska M., Kowalik P., Kvernadze T., Larma M., Makowska M., Markus Y., Merc J., Michniewicz O., Motylinski M., Popowicz A., Radziwonowicz M., Reichart D., Romanov F. D., Simon A. O., Trzcionkowski P., Wróbel E., Zejmo M., Zola S. +56 moredoaj +4 more sourcesOGLE-2019-BLG-0825: Constraints on the Source System and Effect on Binary-lens Parameters Arising from a Five-day Xallarap Effect in a Candidate Planetary Microlensing Event [PDF]
The Astronomical Journal, 2023 We present an analysis of microlensing event OGLE-2019-BLG-0825. This event was identified as a planetary candidate by preliminary modeling. We find that significant residuals from the best-fit static binary-lens model exist and a xallarap effect can fit Yuki K. Satoh, Naoki Koshimoto, David P. Bennett, Takahiro Sumi, Nicholas J. Rattenbury, Daisuke Suzuki, Shota Miyazaki, Ian A. Bond, Andrzej Udalski, Andrew Gould, Valerio Bozza, Martin Dominik, Yuki Hirao, Iona Kondo, Rintaro Kirikawa, Ryusei Hamada, Leading Authors, Fumio Abe, Richard Barry, Aparna Bhattacharya, Hirosane Fujii, Akihiko Fukui, Katsuki Fujita, Tomoya Ikeno, Stela Ishitani Silva, Yoshitaka Itow, Yutaka Matsubara, Sho Matsumoto, Yasushi Muraki, Kosuke Niwa, Arisa Okamura, Greg Olmschenk, Clément Ranc, Taiga Toda, Mio Tomoyoshi, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, Kansuke Yamashita, The MOA Collaboration, Przemek Mróz, Radosław Poleski, Jan Skowron, Michał K. Szymański, Radek Poleski, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Krzysztof Ulaczyk, Krzysztof A. Rybicki, Patryk Iwanek, Marcin Wrona, Mariusz Gromadzki, The OGLE Collaboration, Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Doeon Kim, Youn Kil Jung, Hyoun Woo Kim, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, Hongjing Yang, 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, The KMTNet Collaboration, Uffe G. Jørgensen, Penélope Longa-Peña, Sedighe Sajadian, Jesper Skottfelt, Colin Snodgrass, Jeremy Tregloan-Reed, Nanna Bach-Møller, Martin Burgdorf, Giuseppe D’Ago, Lauri Haikala, James Hitchcock, Markus Hundertmark, Elahe Khalouei, Nuno Peixinho, Sohrab Rahvar, John Southworth, Petros Spyratos, The MiNDSTEp Collaboration +93 moredoaj +7 more sourcesKMT-2022-BLG-0086: Another Binary-lens Binary-source Microlensing Event
The Astronomical JournalWe present the analysis of a microlensing event KMT-2022-BLG-0086 of which the overall light curve is not described by a binary-lens single-source (2L1S) model, which suggests the existence of an extra lens or an extra source.Sun-Ju Chung, Kyu-Ha Hwang, Jennifer C. Yee, Andrew Gould, Ian A. Bond, Hongjing Yang, (Leading Authors), Michael D. Albrow, Youn Kil Jung, Cheongho Han, 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, (The KMTNet Collaboration), Fumio Abe, David P. Bennett, Aparna Bhattacharya, Akihiko Fukui, Ryusei Hamada, Yuki Hirao, Stela Ishitani Silva, Naoki Koshimoto, Shota Miyazaki, Yasushi Muraki, Tutumi Nagai, Kansuke Nunota, Greg Olmschenk, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Sean K. Terry, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, (The MOA Collaboration) +45 moredoaj +3 more sourcesFour-body Gravitational Microlensing Events Involving Both a Binary Lens and a Binary Source
The Astrophysical JournalWe present detailed analyses of three anomalous microlensing events—KMT-2021-BLG-0209, KMT-2021-BLG-0901, and OGLE-2025-BLG-0356—identified from a systematic reexamination of KMTNet light curves for which previous modeling attempts failed or left ...Cheongho Han, Chung-Uk Lee, Andrzej Udalski, (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, Przemek Mróz, (KMTNet Collaboration), 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 Team) +37 moredoaj +2 more sources
