Results 31 to 40 of about 100 (99)

Detecting Exoplanets by Gravitational Microlensing using a Small Telescope

open access: yes, 2006
8 pages, 4 figures, Society for Astronomical Science (May 2006)
openaire   +2 more sources

Systematic KMTNet Planetary Anomaly Search. XII. Complete Sample of 2017 Subprime Field Planets

open access: yesThe Astronomical Journal
We report the analysis of four unambiguous planets and one possible planet from the subprime fields (Γ ≤ 1 hr ^−1 ) of the 2017 Korea Microlensing Telescope Network (KMTNet) microlensing survey, to complete the KMTNet AnomalyFinder planetary sample for ...
Yuqian Gui   +45 more
doaj   +1 more source

Toward Measuring the Microlensing Event Rate in the Galactic Center. I. Event Detection from the UKIRT Microlensing Survey Data

open access: yesThe Astrophysical Journal Supplement Series, 2023
To overcome the high optical extinction, near-infrared (NIR) observations are needed for probing the microlensing events toward the Galactic center. The 2015–2019 UKIRT microlensing survey toward the Galactic center is the first dedicated precursor NIR ...
Yongxin Wen, Weicheng Zang, Bo Ma
doaj   +1 more source

KMT-2022-BLG-1818Lb,c: A Cold Super-Jupiter with a Saturn Sibling

open access: yesThe Astronomical Journal
We present the discovery and analysis of the sixth microlensing two-planet system, KMT-2022-BLG-1818Lb,c, detected by a follow-up program targeting high-magnification events.
Hongyu Li   +79 more
doaj   +1 more source

Prediction of Planet Yields by the PRime-focus Infrared Microlensing Experiment Microlensing Survey

open access: yesThe Astronomical Journal, 2023
The PRime-focus Infrared Microlensing Experiment (PRIME) will be the first to conduct a dedicated near-infrared microlensing survey by using a 1.8 m telescope with a wide field of view of 1.45 deg ^2 at the South African Astronomical Observatory.
Iona Kondo   +5 more
doaj   +1 more source

OGLE-2017-BLG-0448Lb: A Low Mass–Ratio Wide-orbit Microlensing Planet?

open access: yesThe Astronomical Journal
The gravitational microlensing technique is most sensitive to planets in a Jupiter-like orbit and has detected more than 200 planets. However, only a few wide-orbit ( s > 2) microlensing planets have been discovered, where s is the planet-to-host ...
Ruocheng Zhai   +44 more
doaj   +1 more source

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

KMT-2024-BLG-3237: Another Free-floating Planet Candidate with Angular Einstein Radius Measurement

open access: yesThe Astronomical Journal
Planet-formation theories suggest the presence of free-floating planets (FFPs) that are ejected from their formation sites. While these planets emit very little light, they can be identified through gravitational microlensing.
Tanagodchaporn Inyanya   +15 more
doaj   +1 more source

Mass Production of 2023 KMTNet Microlensing Planets. I. Low Mass Ratio

open access: yesThe Astronomical Journal
We initiate the systematic search for planets in the 2023 data of the Korea Microlensing Telescope Network (KMTNet), focusing on those planets found by the KMTNet AnomalyFinder with low preliminary estimates of the mass ratio, q  
Yoon-Hyun Ryu   +36 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

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