Results 1 to 10 of about 19,111,092 (94)
HST pre-imaging of a free-floating planet candidate microlensing event
Astronomy & AstrophysicsHigh-cadence microlensing observations uncovered a population of very short-timescale microlensing events, which are believed to be caused by the population of free-floating planets (FFPs) roaming the Milky Way.Kapusta Mateusz, Mróz Przemek, Ryu Yoon-Hyun, Udalski Andrzej, Kozłowski Szymon, Terry Sean, Szymański Michał K., Soszyński Igor, Pietrukowicz Paweł, Poleski Radosław, Skowron Jan, Ulaczyk Krzysztof, Gromadzki Mariusz, Rybicki Krzysztof, Iwanek Patryk, Wrona Marcin, Mróz Mateusz J., Albrow Michael D., Chung Sun-Ju, Gould Andrew, Han Cheongho, Hwang Kyu-Ha, Jung Youn Kil, Shin In-Gu, Shvartzvald Yossi, Yee Jennifer C., Yang Hongjing, Zang Weicheng, Cha Sang-Mok, Kim Dong-Jin, Kim Seung-Lee, Lee Chung-Uk, Lee Dong-Joo, Lee Yongseok, Park Byeong-Gon, Pogge Richard W. +35 moredoaj +3 more sourcesOGLE-2016-BLG-1195 AO: Lens, Companion to Lens or Source, or None of the Above?
The Astronomical Journal, 2023 We systematically investigate Vandorou et al.’s claim to have detected the host star of the low-mass-ratio ( q < 10 ^−4 ) microlensing planet OGLE-2016-BLG-1195Lb, via Keck adaptive optics (AO) measurements Δ t = 4.12 yr after the event’s peak ( t _0 ...Andrew Gould, Yossi Shvartzvald, Jiyuan Zhang, Jennifer C. Yee, Sebastiano Calchi Novati, Weicheng Zang, Eran O. Ofek +6 moredoaj +1 more sourceCharacterizing Microlensing Planetary System OGLE-2014-BLG-0676L with High-resolution Image-constrained Light-curve Modeling
The Astronomical JournalWe present an analysis that incorporates high-resolution Keck adaptive optics (AO) imaging into microlensing light-curve modeling for the planetary microlensing event OGLE-2014-BLG-0676.Asahi Idei, Naoki Koshimoto, Daisuke Suzuki, Kansuke Nunota, David P. Bennett, Ian A. Bond, Jean-Philippe Beaulieu, Takahiro Sumi, Aparna Bhattacharya, Joshua W. Blackman, Ryusei Hamada, Tsutsumi Nagai, Takuto Tamaoki, Sean K. Terry, Aikaterini Vandorou +14 moredoaj +1 more sourceYou Shall Not Pass (Without Modeling): High-resolution Analysis of KMT-2019-BLG-0253 using MORIA
The Astronomical JournalWe present the Microlensing Object high-Resolution Imaging Analysis pipeline, or MORIA . This is an automated procedure to reduce high-resolution Hubble Space Telescope (HST) images of microlensing targets, build empirical point-spread function (PSF ...T. Dex Bhadra, Sean K. Terry, David P. Bennett, Aparna Bhattacharya, Ian A. Bond, Jon Hulberg, Stela Ishitani Silva, Przemek Mróz, Aikaterini Vandorou +8 moredoaj +1 more sourceA Candidate High-velocity Exoplanet System in the Galactic Bulge
The Astronomical JournalWe present an analysis of adaptive optics images from the Keck I telescope of the microlensing event MOA-2011-BLG-262. The original discovery paper by Bennett et al.Sean K. Terry, Jean-Philippe Beaulieu, David P. Bennett, Aparna Bhattacharya, Jon Hulberg, Macy J. Huston, Naoki Koshimoto, Joshua W. Blackman, Ian A. Bond, Andrew A. Cole, Jessica R. Lu, Clément Ranc, Natalia E. Rektsini, Aikaterini Vandorou +13 moredoaj +1 more sourceGaia20fnr: 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 +1 more sourceMOA-2010-BLG-328: Keck and HST Expose the Limits of Occams Razor in Microlensing
The Astronomical JournalWe present high-resolution follow-up data of the microlensing event MOA-2010-BLG-328, using Keck and the Hubble Space Telescope. Keck data, taken 8 yr after the event, reveal a strong lens detection enabling measurement of lens flux and source-lens ...Aikaterini Vandorou, David P. Bennett, Jean-Philippe Beaulieu, Aparna Bhattacharya, Joshua W. Blackman, Ian A. Bond, Andrew A. Cole, Naoki Koshimoto, Clément Ranc, Natalia E. Rektsini, Sean K. Terry +10 moredoaj +1 more sourcePredictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. IV. Lens Mass and Distance Measurements
The Astronomical JournalAs part of the Galactic Bulge Time Domain Survey (GBTDS), the Nancy Grace Roman Galactic Exoplanet Survey (RGES) will use microlensing to discover cold outer planets and free-floating planets not bound to stars.Sean K. Terry, Etienne Bachelet, Farzaneh Zohrabi, Himanshu Verma, Alison Crisp, Macy J. Huston, Carissma McGee, Matthew Penny, Natasha S. Abrams, Michael D. Albrow, Jay Anderson, Fatemeh Bagheri, Jean-Philippe Beaulieu, Andrea Bellini, David P. Bennett, Galen Bergsten, T. Dex Bhadra, Aparna Bhattacharya, Ian A. Bond, Valerio Bozza, Christopher Brandon, Sebastiano Calchi Novati, Sean Carey, Jessie Christiansen, William DeRocco, B. Scott Gaudi, Jon Hulberg, Stela Ishitani Silva, Sinclaire E. Jones, Eamonn Kerins, Somayeh Khakpash, Katarzyna Kruszyńska, Casey Lam, Jessica R. Lu, Amber Malpas, Shota Miyazaki, Przemek Mróz, Arjun Murlidhar, David Nataf, Marz Newman, Greg Olmschenk, Radek Poleski, Clément Ranc, Nicholas J. Rattenbury, Krzysztof Rybicki, Vito Saggese, Jennifer Sobeck, Keivan G. Stassun, Alexander P. Stephan, Rachel A. Street, Takahiro Sumi, Daisuke Suzuki, Aikaterini Vandorou, Meet Vyas, Jennifer C. Yee, Weicheng Zang, Keming Zhang, (Roman Galactic Exoplanet Survey Project Infrastructure Team) +57 moredoaj +1 more sourceA Newly Identified Degeneracy Keeps the Planetary Interpretation Viable for OGLE-2011-BLG-0950
The Astronomical JournalThe microlensing event OGLE-2011-BLG-0950 exhibits the well-known “Planet/Binary” degeneracy, in which distinct lens configurations produce similar light curves but imply substantially different mass ratios between the lens components.Jiyuan Zhang, Weicheng Zang, Andrzej Udalski, Hongjing Yang, Shude Mao, Michał K. Szymański, Igor Soszyński, Radoslaw Poleski, Krzysztof Ulaczyk, Paweł Pietrukowicz, Szymon Kozłowski, Jan Skowron, Przemek Mróz, Sean Terry, Andrew Gould +14 moredoaj +1 more source
