Results 21 to 30 of about 56,380 (334)
Investigating gravitational lensing diffraction in the laboratory with structured light [PDF]
EPJ Web of ConferencesWe use spatial light modulation to investigate the diffractive effects of gravitational lensing in the laboratory. Using this new platform for laboratory astrophysics, we can overcome the coherence challenges that prevent the observation of diffraction ...
Galvez Enrique J. +5 more
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Testing Velocity-field Lensing on IllustrisTNG Galaxies
The Astrophysical Journal, 2023 Weak gravitational lensing shear could be measured far more precisely if information about unlensed attributes of source galaxies were available. Disk galaxy velocity fields supply such information, at least in principle, with idealized models predicting
Jean Donet, David Wittman
doaj +1 more source
Degeneracy in exotic gravitational lensing [PDF]
, 2002 We present three different theoretically foreseen, but unusual, astrophysical situations where the gravitational lens equation ends up being the same, thus producing a degeneracy problem.
Cooray A. +9 more
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The ‘Gravitational Lensing’ Bibliography [PDF]
Symposium - International Astronomical Union, 1996 We present a non-exhaustive bibliography on “Gravitational Lensing” (GL), totalizing nearly 1500 titles (see Pospieszalska-Surdej et al. 1993 for an earlier version of this bibliography). It also includes recent abstracts of papers dealing with gravitational lensing and submitted to astro-ph@babbage.sissa.it. The GL bibliography is accessible through a
Pospieszalska-Surdej, Anna +2 more
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Symposium - International Astronomical Union, 1993 In approximately half the systems currently recognized as strongly gravitationally lensed, the background object is an extragalactic radio source. Radio observations have played an important role in the identification of lensed systems, and the properties of radio sources allow some of the astrophysical applications of lensing to be realized.
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Weak gravitational lensing [PDF]
Physics Reports, 2001 Review; 223 pages; figures embedded; to be submitted to Physics Reports; constructive comments are ...
Bartelmann, M., Schneider, P.
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Gravitational Lensing in Astronomy [PDF]
Living Reviews in Relativity, 1998 Deflection of light by gravity was predicted by General Relativity and observationaly confirmed in 1919. In the following decades various aspects of the gravitational lens effect were explored theoretically, among them the possibility of multiple or ring-like images of background sources, the use of lensing as a gravitational telescope on very faint ...
Wambsganss Joachim
doaj +4 more sources
Reducing the weak lensing noise for the gravitational wave Hubble diagram using the non-Gaussianity of the magnification distribution [PDF]
, 2010 Gravitational wave sources are a promising cosmological standard candle because their intrinsic luminosities are determined by fundamental physics (and are insensitive to dust extinction).
C. Shapiro +9 more
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GRAVITATIONAL LENSING BY WORMHOLES [PDF]
Modern Physics Letters A, 2008 We have investigated the gravitational lensing by two wormholes, viz., Janis–Newman–Winnicour (JNW) wormhole and Ellis wormhole. The deflection angles in the strong field limit are calculated and various lens parameters of two wormholes are compared. It is shown that the JNW wormhole exhibits the relativistic images, while the Ellis wormhole does not ...
Dey, Tushar Kanti, Sen, Surajit
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Gravitational Lensing in Clusters of Galaxies [PDF]
, 1999 Gravitational lensing in clusters of galaxies is an efficient tool to probe the mass distribution of galaxies and clusters, high redshift objects thanks to the gravitational amplification, and the geometry of the universe.
Hattori, M., Kneib, J. -P., Makino, N.
core +2 more sources