Precise Mass Measurement of OGLE-2013-BLG-0132/MOA-2013-BLG-148: A Saturn-mass Planet Orbiting an M Dwarf

Precise Mass Measurement of OGLE-2013-BLG-0132/MOA-2013-BLG-148: A Saturn-mass Planet Orbiting an M Dwarf

We revisit the planetary microlensing event OGLE-2013-BLG-0132/MOA-2013-BLG-148 using Keck adaptive optics imaging in 2013 with NIRC2 and in 2020, 7.4 yr after the event, with OSIRIS. The 2020 observations yield a source and lens separation of 56.91 ± 0.29 mas, which provides us with a precise measu...

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Bibliographic Details
Main Authors: Natalia E. Rektsini, Virginie Batista, Clément Ranc, David P. Bennett, Jean-Philippe Beaulieu, Joshua W. Blackman, Andrew A. Cole, Sean K. Terry, Naoki Koshimoto, Aparna Bhattacharya, Aikaterini Vandorou, Thomas J. Plunkett, Jean-Baptiste Marquette
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astronomical Journal
Subjects:
Gravitational microlensing
Adaptive optics
M dwarf stars
Exoplanet astronomy
Online Access:https://doi.org/10.3847/1538-3881/ad2514

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