Results 31 to 40 of about 168,724 (208)

Gravitational Microlensing [PDF]

open access: yesNaturwissenschaften, 1999
Gravitational lensing - i.e. light deflection by gravity - has become an important tool for exploring our Universe, in particular to determine its matter content. There are cases in which the deflection angles are tiny, of the order of milliarcseconds or smaller, such that the multiple images are not observable.
openaire   +2 more sources

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

Mass Determination with Gravitational Microlensing [PDF]

open access: yesThe Astrophysical Journal, 1996
19 pages in postscript (four figures included), submitted to ...
Mao, Shude, Paczyński, Bohdan
openaire   +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

Cloud-based e-Infrastructure for scheduling astronomical observations [PDF]

open access: yes, 2015
This research was pursued under the EPSRC grant ‘Working Together: Constraint Programming and Cloud Computing’ (EP/K015745/1) and an Amazon Web Services (AWS) Education Research Grant.Gravitational microlensing exploits a transient phenomenon where an ...
Barker, Adam David   +11 more
core   +1 more source

Galactic microlensing : binary-lens light curve morphologies and results from the Rosetta spacecraft bulge survey [PDF]

open access: yes, 2014
For 20 years now, gravitational microlensing observations towards the Galactic bulge have provided us with a wealth of information about the stellar and planetary content of our Galaxy, which is inaccessible via other current methods.
Liebig, Christine Elisabeth
core   +2 more sources

Defocusing gravitational microlensing [PDF]

open access: yesPhysica Scripta, 1997
19 pages, latex, submitted to Physica ...
Capozziello, Salvatore   +4 more
openaire   +2 more sources

OGLE 2008–BLG–290 : an accurate measurement of the limb darkening of a galactic bulge K giant spatially resolved by microlensing [PDF]

open access: yes, 2010
Context. Not only is gravitational microlensing a successful tool for discovering distant exoplanets, but it also enables characterization of the lens and source stars involved in the lensing event. Aims.
Riffeser, A.   +562 more
core   +1 more source

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

Microlensing of circumstellar envelopes III. Line profiles from stellar winds in homologous expansion [PDF]

open access: yes, 2006
This paper examines line profile evolution due to the linear expansion of circumstellar material obsverved during a microlensing event. This work extends our previous papers on emission line profile evolution from radial and azimuthal flow during point ...
Bryce, H.M.   +8 more
core   +1 more source

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