Results 51 to 60 of about 1,819 (116)

The First Neptune Analog or Super-Earth with Neptune-like Orbit: MOA-2013-BLG-605Lb

open access: yes, 2016
We present the discovery of the first Neptune analog exoplanet or super-Earth with Neptune-like orbit, MOA-2013-BLG-605Lb. This planet has a mass similar to that of Neptune or a super-Earth and it orbits at $9\sim 14$ times the expected position of the ...
A. Bhattacharya   +50 more
core   +2 more sources

Systematic KMTNet Planetary Anomaly Search. XI. Complete Sample of 2016 Subprime Field Planets

open access: yesThe Astronomical Journal
Following Shin et al. (2023b), which is a part of the “Systematic KMTNet Planetary Anomaly Search” series (i.e., a search for planets in the 2016 KMTNet prime fields), we conduct a systematic search of the 2016 KMTNet subprime fields using a semi-machine-
In-Gu Shin   +69 more
doaj   +1 more source

Gaia22dkvLb: A Microlensing Planet Potentially Accessible to Radial-velocity Characterization

open access: yesThe Astronomical Journal
We report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensing fields. Our primary analysis yields a Jovian planet with ${M}_{{\rm{p}}}=
Zexuan Wu   +52 more
doaj   +1 more source

A Sub-Saturn Mass Planet, MOA-2009-BLG-319Lb [PDF]

open access: yes, 2011
We report the gravitational microlensing discovery of a sub-Saturn mass planet, MOA-2009-BLG-319Lb, orbiting a K- or M-dwarf star in the inner Galactic disk or Galactic bulge.
Miyake, N., Ofek, E. O.
core  

The Galactic Exoplanet Survey Telescope (GEST)

open access: yes, 2002
The Galactic Exoplanet Survey Telescope (GEST) will observe a 2 square degree field in the Galactic bulge to search for extra-solar planets using a gravitational lensing technique.
Bally, J.   +24 more
core   +1 more source

KMT-2023-BLG-2669: Ninth Free-floating Planet Candidate with θ E Measurements

open access: yesThe Astronomical Journal
We report a free-floating planet (FFP) candidate identified from the analysis of the microlensing event KMT-2023-BLG-2669. The lensing light curve is characterized by a short duration (≲3 days) and a small amplitude (≲0.7 mag). From the analysis, we find
Youn Kil Jung   +19 more
doaj   +1 more source

Detection of Extrasolar Planets by Gravitational Microlensing

open access: yes, 2008
Gravitational microlensing provides a unique window on the properties and prevalence of extrasolar planetary systems because of its ability to find low-mass planets at separations of a few AU.
A. Alcock   +93 more
core   +1 more source

Investigating the Binary Source Degeneracy for Wide-orbit Planets

open access: yesThe Astronomical Journal
Wide-orbit planets are particularly sensitive to detection by the Roman Galactic Bulge Time Domain Survey (GBTDS). This study investigates the degeneracy of these events with binary sources, focusing on how observation cadence affects the resolution of ...
Parisa Sangtarash, Jennifer C. Yee
doaj   +1 more source

Microlensing Searches for Exoplanets

open access: yes, 2018
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 the tell-tale brightness variations of the background star during the
Tsapras, Yiannis
core   +1 more source

How Rare Are TESS Free-floating Planets?

open access: yesThe Astrophysical Journal Letters
Recently, Kunimoto et al. claimed that a short-lived signal in the Transiting Exoplanet Survey Satellite (TESS) Sector 61 database was possibly caused by a microlensing event with a terrestrial-mass free-floating planet (FFP) lens.
Hongjing Yang   +5 more
doaj   +1 more source

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