MOA-2013-BLG-220Lb: Massive Planetary Companion to Galactic-Disk Host

Abstract

We report the discovery of MOA-2013-BLG-220Lb, which has a super-Jupiter mass ratio $q=3.01\pm 0.02\times 10^{-3}$ relative to its host. The proper motion, $\mu =12.5\pm 1\mathrm{mas}{\mathrm{yr}}^{-1}$, is one of the highest for microlensing planets yet discovered, implying that it will be possible to separately resolve the host within $\sim 7$ years. Two separate lines of evidence imply that the planet and host are in the Galactic disk. The planet could have been detected and characterized purely with follow-up data, which has important implications for microlensing surveys, both current and into the LSST era.

2 tables, 2 figures

References in corpus (4)

• Discovery of a Jupiter/Saturn Analog with Gravitational Microlensing
• A New Algorithm For Difference Image Analysis
• Extended-Source Effect and Chromaticity in Two-Point-Mass Microlensing
• Hexadecapole Approximation in Planetary Microlensing

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• Candidate Gravitational Microlensing Events for Future Direct Lens Imaging
• Single-lens mass measurement in the high-magnification microlensing event Gaia19bld located in the Galactic disc
• OGLE-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in Galactic Bulge