Microlensing searches for exoplanets

Y Tsapras - Geosciences, 2018 - mdpi.com
Gravitational microlensing finds planets through their gravitational influence on the light
coming from a more distant background star. The presence of the planet is then inferred from …

A Jovian analogue orbiting a white dwarf star

JW Blackman, JP Beaulieu, DP Bennett, C Danielski… - Nature, 2021 - nature.com
Studies, have shown that the remnants of destroyed planets and debris-disk planetesimals
can survive the volatile evolution of their host stars into white dwarfs,, but few intact planetary …

WFIRST Exoplanet Mass-measurement Method Finds a Planetary Mass of 39±8 M⊕ for OGLE-2012-BLG-0950Lb

A Bhattacharya, JP Beaulieu, DP Bennett… - The Astronomical …, 2018 - iopscience.iop.org
WFIRST Exoplanet Mass-measurement Method Finds a Planetary Mass of 39 ± 8 M⊕ for
OGLE-2012-BLG-0950Lb - IOPscience This site uses cookies. By continuing to use this site you …

An Earth-mass planet in a time of COVID-19: KMT-2020-BLG-0414Lb

W Zang, C Han, I Kondo, JC Yee, CU Lee… - … in astronomy and …, 2021 - iopscience.iop.org
We report the discovery of KMT-2020-BLG-0414Lb, with a planet-to-host mass ratio q 2= 0.9–
1.2× 10− 5= 3–4⊕ at 1σ, which is the lowest mass-ratio microlensing planet to date …

Keck observations confirm a super-Jupiter planet orbiting M dwarf OGLE-2005-BLG-071L

DP Bennett, A Bhattacharya, JP Beaulieu… - The Astronomical …, 2020 - iopscience.iop.org
We present adaptive optics imaging from the NIRC2 instrument on the Keck II telescope that
resolves the exoplanet host (and lens) star as it separates from the brighter source star …

Microlensing results challenge the core accretion runaway growth scenario for gas giants

D Suzuki, DP Bennett, S Ida, C Mordasini… - The Astrophysical …, 2018 - iopscience.iop.org
We compare the planet-to-star mass-ratio distribution measured by gravitational
microlensing to core accretion theory predictions from population synthesis models. The …

Revisiting MOA 2013-BLG-220L: a solar-type star with a cold super-Jupiter companion

A Vandorou, DP Bennett, JP Beaulieu… - The Astronomical …, 2020 - iopscience.iop.org
We present the analysis of high-resolution images of MOA-2013-BLG-220, taken with the
Keck adaptive optics system six years after the initial observation, identifying the lens as a …

No Large Dependence of Planet Frequency on Galactocentric Distance

N Koshimoto, DP Bennett, D Suzuki… - The Astrophysical …, 2021 - iopscience.iop.org
Gravitational microlensing is currently the only technique that helps study the Galactic
distribution of planets as a function of distance from the Galactic center. The Galactic …

KMT-2021-BLG-1077L: The fifth confirmed multiplanetary system detected by microlensing

C Han, A Gould, IA Bond, YK Jung, MD Albrow… - Astronomy & …, 2022 - aanda.org
Aims. The high-magnification microlensing event KMT-2021-BLG-1077 exhibits a subtle and
complex anomaly pattern in the region around the peak. We analyze the lensing light curve …

MOA-2007-BLG-400 A super-Jupiter-mass planet orbiting a galactic bulge K-dwarf revealed by Keck adaptive optics imaging

A Bhattacharya, DP Bennett, JP Beaulieu… - The Astronomical …, 2021 - iopscience.iop.org
We present Keck/NIRC2 adaptive optics imaging of planetary microlensing event MOA-2007-
BLG-400 that resolves the lens star system from the source. We find that the MOA-2007-BLG …