AB
Aparna Bhattacharya
astro-ph.EPastro-ph.GAastro-ph.SRastro-ph.IMastro-ph.COastro-ph.HEbinaries: generalGalaxy: stellar contentgravitational lensing: microplanetary systems
On Valency
published · living versionsW_w4gfrpzf·v1 · currentpublished
The Wide Field Infrared Survey Telescope: 100 Hubbles for the 2020s
with Rachel Akeson, Lee Armus, Etienne Bachelet, Vanessa Bailey +101
1 version
Preprints & journals
131 papers in the corpus · 2013–2026Characterizing Microlensing Planetary System OGLE-2014-BLG-0676L with High-Resolution Image Constrained Light Curve Modeling2607.18408v2 · Asahi Idei, Naoki Koshimoto, Daisuke Suzuki et al.2026 · 0 citationsarXiv
MOA-2020-BLG-108Lb: A Giant Planet Beyond the Snow Line of a Low-Mass Lens Near the Lower Boundary of the Mass-Ratio Desert2607.12081v2 · Yuki K. Satoh, David P. Bennett, Takahiro Sumi et al.2026 · 0 citationsarXiv
Systematic KMTNet Planetary Anomaly Search. XIII. Complete Sample of 2021 Prime Field Planets2605.17053v2 · In-Gu Shin, Jennifer C. Yee, Weicheng Zang et al.2026 · 0 citationsarXiv
Mass Production of 2023 KMTNet Microlensing Planets. III: Three Planets from the Subprime Field2605.07392v1 · Hongyu Li, Zhixing Li, Weicheng Zang et al.2026 · 0 citationsarXiv
You Shall Not Pass (Without Modeling): High-Resolution Analysis of KMT-2019-BLG-0253 using MORIA2605.08340v2 · T. Dex Bhadra, Sean K. Terry, David P. Bennett et al.2026 · 0 citationsarXiv
An HST Wide Field Survey of the Galactic Bulge: Overview, Strategy, and First Results2605.06778v1 · Sean K. Terry, Jay Anderson, Charles A. Beichman et al.2026 · 1 citationarXiv
Candidate Microlensing Brown Dwarfs in Binary Lens Systems from the 2023--2025 Observing Seasons2604.07932v1 · Cheongho Han, Andrzej Udalski, Ian A. Bond et al.2026 · 1 citationarXiv
Mass Production of 2023 KMTNet Microlensing Planets. II: Two Planets and A Brown Dwarf2603.13887v2 · Zhixing Li, Hongyu Li, Weicheng Zang et al.2026 · 1 citationarXiv
Three Saturn-mass Microlensing Planets Identified through Signals from Peripheral-caustic Perturbations2602.16095v1 · Cheongho Han, Chung-Uk Lee, Andrzej Udalski et al.2026 · 0 citationsarXiv
KMT-2016-BLG-1337L: A Saturn-mass planet orbiting within a binary system of low-mass stars2602.12610v1 · Cheongho Han, Chung-Uk Lee, Ian A. Bond et al.2026 · 0 citationsarXiv
Four Giant Planets from 2024 KMTNet Microlensing Campaign2512.09325v1 · Cheongho Han, Andrzej Udalski, Ian A. Bond et al.2025 · 0 citationsarXiv
Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. V. Detection Rates of Multiplanetary Systems in High Magnification Microlensing Events2512.05182v1 · Vito Saggese, 'Etienne Bachelet, Sebastiano Calchi Novati et al.2025 · 0 citationsarXiv
Six binary brown dwarf candidates identified by microlensing2510.23933v1 · Cheongho Han, Chung-Uk Lee, Ian A. Bond et al.2025 · 0 citationsarXiv
Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. IV. Lens Mass and Distance Measurements2510.13974v2 · Sean K. Terry, Etienne Bachelet, Farzaneh Zohrabi et al.2025 · 8 citationsarXiv
Six microlensing planets detected via sub-day signals during the 2023 -- 2024 season2509.05522v1 · Cheongho Han, Chung-Uk Lee, Andrzej Udalski et al.2025 · 1 citationarXiv
KMT-2022-BLG-0086: Another binary-lens binary-source microlensing event2506.20914v1 · Sun-Ju Chung, Kyu-Ha Hwang, Jennifer C. Yee et al.2025 · 1 citationarXiv
Exoplanet Detection with Microlensing2505.10621v1 · Aparna Bhattacharya2025 · 0 citationsarXiv
Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits.40273242 · Zang, Weicheng, Jung, Youn Kil, Yee, Jennifer C et al.2025 · 40 citationsScience (New York, N.Y.). 2025;388(6745):400-404
Systematic Reanalysis of KMTNet Microlensing Events, Paper II: Two New Planets in Giant-Source Events2503.19471v2 · Hongjing Yang, Jennifer C. Yee, Jiyuan Zhang et al.2025 · 9 citationsarXiv
Analyses of anomalous lensing events detected from the UKIRT microlensing survey2503.14789v1 · Cheongho Han, Weicheng Zang, Andrzej Udalski et al.2025 · 1 citationarXiv
OGLE-2014-BLG-1760: A Jupiter-Sun analogue residing in the Galactic Bulge2502.12942v1 · Natalia E. Rektsini, Clement Ranc, Naoki Koshimoto et al.2025 · 2 citationsarXiv
MOA-2022-BLG-033Lb, KMT-2023-BLG-0119Lb, and KMT-2023-BLG-1896Lb: Three low mass-ratio microlensing planets detected through dip signals2501.02193v1 · Cheongho Han, Ian A. Bond, Youn Kil Jung et al.2025 · 9 citationsarXiv
Image-Constrained Modeling with Hubble and Keck Images Reveals that OGLE-2012-BLG-0563Lb is a Jupiter-Mass planet Orbiting a K Dwarf2412.03651v1 · David P. Bennett, Aparna Bhattacharya, Jean-Philippe Beaulieu et al.2024 · 0 citationsarXiv
KMT-2021-BLG-0284, KMT-2022-BLG-2480, and KMT-2024-BLG-0412: Three microlensing events involving two lens masses and two source stars2411.09096v1 · Cheongho Han, Andrzej Udalski, Ian A. Bond et al.2024 · 4 citationsarXiv
The Microlensing Event Rate and Optical Depth from MOA-II 9 year Survey toward the Galactic Bulge2410.23553v1 · Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto et al.2024 · 0 citationsarXiv
A Candidate High-Velocity Exoplanet System in the Galactic Bulge2410.09147v1 · Sean K. Terry, Jean-Philippe Beaulieu, David P. Bennett et al.2024 · 4 citationsAJ 169, 131 (2025)
Microlensing brown-dwarf companions in binaries detected during the 2022 and 2023 seasons2408.11248v1 · Cheongho Han, Ian A. Bond, Andrzej Udalski et al.2024 · 4 citationsarXiv
Analysis of the full Spitzer microlensing sample I: Dark remnant candidates and Gaia predictions2407.13740v1 · Krzysztof A. Rybicki, Yossi Shvartzvald, Jennifer C. Yee et al.2024 · 4 citationsarXiv
Four microlensing giant planets detected through signals produced by minor-image perturbations2406.10547v1 · Cheongho Han, Ian A. Bond, Chung-Uk Lee et al.2024 · 6 citationsarXiv
KMT-2023-BLG-1866Lb: Microlensing super-Earth around an M dwarf host2405.07514v1 · Cheongho Han, Ian A. Bond, Andrzej Udalski et al.2024 · 3 citationsarXiv
OGLE-2015-BLG-0845L: A low-mass M dwarf from the microlensing parallax and xallarap effects2404.13031v2 · Zhecheng Hu, Wei Zhu, Andrew Gould et al.2024 · 1 citationarXiv
OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects2404.05912v1 · Cheongho Han, Andrzej Udalski, Ian A. Bond et al.2024 · 3 citationsarXiv
Unveiling MOA-2007-BLG-192: An M Dwarf Hosting a Likely Super-Earth2403.12118v2 · Sean K. Terry, Jean-Philippe Beaulieu, David P. Bennett et al.2024 · 10 citationsarXiv
Measurement of Dependence of Microlensing Planet Frequency on The Host Star Mass and Galactocentric Distance by using a Galactic Model2403.01721v2 · Kansuke Nunota (1, Naoki Koshimoto, Daisuke Suzuki et al.2024 · 6 citationsarXiv
Precise mass measurement of OGLE-2013-BLG-0132/MOA-2013-BLG-148: a Saturn mass planet orbiting an M-dwarf2401.17549v1 · Natalia E. Rektsini, Virginie Batista, Clement Ranc et al.2024 · 8 citationsarXiv
MOA-2022-BLG-563Lb, KMT-2023-BLG-0469Lb, and KMT-2023-BLG-0735Lb: Three sub-Jovian-mass microlensing planets2401.11329v1 · Cheongho Han, Youn Kil Jung, Ian A. Bond et al.2024 · 0 citationsarXiv
Systematic KMTNet Planetary Anomaly Search. XI. Complete Sample of 2016 Sub-Prime Field Planets2401.04256v1 · In-Gu Shin, Jennifer C. Yee, Weicheng Zang et al.2024 · 13 citationsarXiv
KMT-2023-BLG-1431Lb: A New Microlensing Planet from a Subtle Signature2311.13097v1 · Aislyn Bell, Jiyuan Zhang, Youn Kil Jung et al.2023 · 6 citationsarXiv
Systematic Reanalysis of KMTNet microlensing events, Paper I: Updates of the Photometry Pipeline and a New Planet Candidate2311.04876v1 · Hongjing Yang, Jennifer C. Yee, Kyu-Ha Hwang et al.2023 · 47 citationsarXiv
Keck and Hubble Observations Show That MOA-2008-BLG-379Lb Is a Super-Jupiter Orbiting an M Dwarf2311.00627v3 · David P. Bennett, Aparna Bhattacharya, Jean-Philippe Beaulieu et al.2023 · 14 citationsarXiv
OGLE-2014-BLG-0221Lb: A Jupiter Mass Ratio Companion Orbiting either a Late-Type Star or a Stellar Remnant2310.13066v1 · Rintaro Kirikawa, Takahiro Sumi, David P. Bennett et al.2023 · 0 citationsarXiv
KMT-2021-BLG-1547Lb: Giant microlensing planet detected through a signal deformed by source binarity2309.01280v1 · Cheongho Han, Weicheng Zang, Youn Kil Jung et al.2023 · 0 citationsarXiv
OGLE-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 Event2307.14274v1 · Yuki K. Satoh, Naoki Koshimoto, David P. Bennett et al.2023 · 2 citationsarXiv
Brown dwarf companions in binaries detected from the 2021 season high-cadence microlensing surveys2307.04921v1 · Cheongho Han, Youn Kil Jung, Ian A. Bond et al.2023 · 0 citationsarXiv
KMT-2022-BLG-0475Lb and KMT-2022-BLG-1480Lb: Microlensing ice giants detected via non-caustic-crossing channel2307.00753v1 · Cheongho Han, Chung-Uk Lee, Ian A. Bond et al.2023 · 0 citationsarXiv
The Galactic Center with Roman2306.12485v1 · Sean K. Terry, Matthew W. Hosek Jr., Jessica R. Lu et al.2023 · 2 citationsarXiv
KMT-2021-BLG-1150Lb: Microlensing planet detected through a densely covered planetary-caustic signal2305.15628v1 · Cheongho Han, Youn Kil Jung, Ian A. Bond et al.2023 · 2 citationsarXiv
Probable brown dwarf companions detected in binary microlensing events during the 2018-2020 seasons of the KMTNet survey2305.06605v1 · Cheongho Han, Youn Kil Jung, Doeon Kim et al.2023 · 5 citationsarXiv
MOA-2022-BLG-249Lb: Nearby microlensing super-Earth planet detected from high-cadence surveys2304.02815v1 · Cheongho Han, Andrew Gould, Youn Kil Jung et al.2023 · 5 citationsarXiv
Systematic KMTNet Planetary Anomaly Search. IX. Complete Sample of 2016 Prime-Field Planets2303.16881v1 · In-Gu Shin, Jennifer C. Yee, Weicheng Zang et al.2023 · 19 citationsarXiv
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