Microlensing surveys for exoplanets

BS Gaudi - Annual Review of Astronomy and Astrophysics, 2012 - annualreviews.org
Unlike most other planet-detection techniques, gravitational microlensing does not rely on
detection of photons from either the host or the planet. Rather, planets are discovered by …

Predictions of the nancy grace roman space telescope galactic exoplanet survey. II. Free-floating planet detection rates

SA Johnson, M Penny, BS Gaudi, E Kerins… - The Astronomical …, 2020 - iopscience.iop.org
Abstract The Nancy Grace Roman Space Telescope (Roman) will perform a Galactic
Exoplanet Survey (RGES) to discover bound exoplanets with semimajor axes greater than 1 …

Constraining the masses of microlensing black holes and the mass gap with Gaia DR2

Ł Wyrzykowski, I Mandel - Astronomy & Astrophysics, 2020 - aanda.org
Context. Gravitational microlensing is sensitive to compact-object lenses in the Milky Way,
including white dwarfs, neutron stars, or black holes, and could potentially probe a wide …

Black hole, neutron star and white dwarf candidates from microlensing with OGLE-III

Ł Wyrzykowski, Z Kostrzewa-Rutkowska… - Monthly Notices of …, 2016 - academic.oup.com
Most stellar remnants so far have been found in binary systems, where they interact with
matter from their companions. Isolated neutron stars and black holes are difficult to find as …

Systematic reanalysis of KMTNet microlensing events, paper I: Updates of the photometry pipeline and a new planet candidate

H Yang, JC Yee, KH Hwang, Q Qian… - Monthly Notices of …, 2024 - academic.oup.com
In this work, we update and develop algorithms for KMTNet tender-love care (TLC)
photometry in order to create a new, mostly automated, TLC pipeline. We then start a project …

OGLE-2019-BLG-0960 Lb: the smallest microlensing planet

JC Yee, W Zang, A Udalski, YH Ryu… - The Astronomical …, 2021 - iopscience.iop.org
We report the analysis of OGLE-2019-BLG-0960, which contains the smallest mass-ratio
microlensing planet found to date (q= 1.2–1.6× 10− 5 at 1σ). Although there is substantial …

Euclid-Roman joint microlensing survey: Early mass measurement, free floating planets, and exomoons

E Bachelet, D Specht, M Penny, M Hundertmark… - Astronomy & …, 2022 - aanda.org
As the Kepler mission has done for hot exoplanets, the ESA Euclid and NASA Roman
missions have the potential to create a breakthrough in our understanding of the …

Systematic KMTNet planetary anomaly search. IV. Complete sample of 2019 prime-field

W Zang, H Yang, C Han, CU Lee… - Monthly Notices of …, 2022 - academic.oup.com
We report the complete statistical planetary sample from the prime fields (Γ≥ 2 h− 1) of the
2019 Korea Microlensing Telescope Network (KMTNet) microlensing survey. We develop …

Populations of stellar-mass black holes from binary systems

G Wiktorowicz, Ł Wyrzykowski… - The Astrophysical …, 2019 - iopscience.iop.org
In large and complicated stellar systems like galaxies, it is difficult to predict the number and
characteristics of a black hole (BH) population. Such populations may be modeled as an …

Systematic KMTNet Planetary Anomaly Search. I. OGLE-2019-BLG-1053Lb, a Buried Terrestrial Planet

W Zang, KH Hwang, A Udalski, T Wang… - The Astronomical …, 2021 - iopscience.iop.org
In order to exhume the buried signatures of" missing planetary caustics" in Korea
Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly …