Results 31 to 40 of about 11,137 (251)

Chromaticity of gravitational microlensing events [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
total 18 pages, including 5 figures and no table, MNRAS ...
Han, Cheongho   +2 more
openaire   +2 more sources

Systematic KMTNet Planetary Anomaly Search. VIII. Complete Sample of 2019 Subprime Field Planets

open access: yesThe Astronomical Journal, 2023
We complete the publication of all microlensing planets (and “possible planets”) identified by the uniform approach of the KMT AnomalyFinder system in the 21 KMT subprime fields during the 2019 observing season, namely, KMT-2019-BLG-0298, KMT-2019-BLG ...
Youn Kil Jung   +45 more
doaj   +1 more source

Gravitational wave detection through microlensing? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2003
It is shown that accurate photometric observations of a relatively high--magnification microlensing event ($A\gg 1$), occurring close to the line of sight of a gravitational wave (GW) source, represented by a binary star, can allow the detection of subtle gravitational effects.
Ragazzoni, R.   +2 more
openaire   +2 more sources

Detectability of extrasolar moons as gravitational microlenses [PDF]

open access: yes, 2010
We evaluate gravitational lensing as a technique for the detection of extrasolar moons. Since 2004 gravitational microlensing has been successfully applied as a detection method for extrasolar planets.
Liebig, Christine, Wambsganss, Joachim
core   +1 more source

Microlensing Searches for Exoplanets

open access: yesGeosciences, 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
Yiannis Tsapras
doaj   +1 more source

Microlensing Events from Measurements of the Deflection Angle [PDF]

open access: yes, 1996
Microlensing events are now regularly being detected by monitoring the flux of a large number of potential sources and measuring the combined magnification of the images.
Hog E.   +7 more
core   +2 more sources

Gravitational Microlensing by Clustered MACHOs [PDF]

open access: yesThe Astrophysical Journal, 1996
uuencoded, gzipped PostScript, 14 ...
Benton Metcalf R., Silk J.
openaire   +2 more sources

OGLE-2019-BLG-1180Lb: Discovery of a Wide-orbit Jupiter-mass Planet around a Late-type Star

open access: yesThe Astronomical Journal, 2023
We report on the discovery and analysis of the planetary microlensing event OGLE-2019-BLG-1180 with a planet-to-star mass ratio q ∼ 0.003. The event OGLE-2019-BLG-1180 has unambiguous cusp-passing and caustic-crossing anomalies, which were caused by a ...
Sun-Ju Chung   +35 more
doaj   +1 more source

Gravitational microlensing and the galactic halo [PDF]

open access: yesPhysical Review D, 1996
By means of extensive galactic modeling we study the implications of the more than eighty microlensing events that have now been observed for the composition of the dark halo of the Galaxy, as well as for other properties of the Galaxy. We take the Galaxy to be comprised of luminous and dark disk components, a bulge, and a dark halo consisting of both ...
Gates, Evalyn I.   +2 more
openaire   +3 more sources

Improved Detection Rates for Close Binaries Via Astrometric Observations of Gravitational Microlensing Events [PDF]

open access: yes, 1999
In addition to constructing a Galactic matter mass function free from the bias induced by the hydrogen-burning limit, gravitational microlensing allows one to construct a mass function which is less affected by the problem of unresolved binaries (Gaudi &
Alard C.   +12 more
core   +3 more sources

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