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Exoplanet searches with gravitational microlensing
2010Different regimes of gravitational lensing depend on lens masses and roughly correspond to angular distance between images. If a gravitational lens has a typical stellar mass, this regime is named microlensing because the typical angular distance between images is about microarcseconds in the case for sources and lenses at cosmological distances.
A. F. Zakharov +5 more
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Morse theory and gravitational microlensing
Journal of Mathematical Physics, 1992Morse theory is used to rigorously obtain counting formulas and lower bounds for the total number of images of a background point source, not on a caustic, undergoing lensing by a single-plane microlens system having compact bodies plus either subcritical or supercritical continuously distributed matter.
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Exoplanet Searches with Gravitational Microlensing [PDF]
, 2013 There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potentiality of detecting Earth-like planets at distances about a few astronomical units from their host star.
A. F. Zakharov +6 more
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Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies
Living Reviews in Relativity, 2021Odylio D Aguiar +2 more
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Gravitational Microlensing: Machos and Quasars
1998Gravitational microlensing deals with the deflection of light by stellar mass objects. The deflection angles are tiny (of the order of milliarcseconds or smaller), so that multiple images on this scale are not observable. However, lensing magnifies the affected sources as well, and since the lens and the source are moving relative to each other, this ...
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Searches for continuous-wave gravitational radiation
Living Reviews in Relativity, 2023Keith Riles
exaly