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Gravitational Lensing [PDF]

open access: yesClassical and Quantum Gravity, 2010
Gravitational lensing has developed into one of the most powerful tools for the analysis of the dark universe. This review summarises the theory of gravitational lensing, its main current applications and representative results achieved so far.
Alcock C   +244 more
core   +2 more sources

Gravitational Lensing of Continuous Gravitational Waves [PDF]

open access: yesUniverse, 2021
Continuous gravitational waves are analogous to monochromatic light and could therefore be used to detect wave effects such as interference or diffraction. This would be possible with strongly lensed gravitational waves.
Marek Biesiada, Sreekanth Harikumar
doaj   +3 more sources

Gravitational Lensing by Wormholes [PDF]

open access: yesPhysical Review D, 2006
Gravitational lensing by traversable Lorentzian wormholes is a ew possibility which is analyzed here in the strong field limit. Wormhole solutions are considered in the Einstein minimally coupled theory and in the brane world model.
Alexander V. Zakharov   +11 more
core   +5 more sources

Gravitational lensing. [PDF]

open access: yesProc Natl Acad Sci U S A, 2013
Since Galileo, the arrays of lenses in telescopes have revolutionized the way we see planets, moons, and the universe. Now gravitational lenses made of warped spacetime are helping astronomers peer into the farthest corners of the cosmos.
Choi C.
europepmc   +4 more sources

Inverting Gravitational Lenses [PDF]

open access: yesSIAM Review, 2002
Summary: Gravitational lensing provides a powerful tool to study a number of fundamental questions in astrophysics. Fortuitously, one can begin to explore some nontrivial issues associated with this phenomenon without a lot of very sophisticated mathematics, making an elementary treatment of this topic tractable even to senior undergraduates. We give a
Newbury, Peter R., Spiteri, Raymond J.
openaire   +1 more source

Gravitational Lensing in Plasma [PDF]

open access: yesProceedings of 25th Texas Symposium on Relativistic Astrophysics — PoS(Texas 2010), 2011
We develop a model of gravitational lensing in plasma. We show that the gravitaional deflection angle by point mass in the homogeneous plasma differs from the vacuum deflection angle and depends on frequency of the photon. The dependence of the lensing angle on the photon frequency in the homogeneous plasma resembles the properties of a refractive ...
O. YU. TSUPKO, G. S. BISNOVATYI-KOGAN
openaire   +1 more source

Exploring gravitational lensing [PDF]

open access: yesEuropean Journal of Physics, 2019
In this article, we discuss the idea of gravitational lensing, from a systematic, historical and didactic point of view. We show how the basic lensing equation together with the concepts of geometrical optics opens a space of implications that can be explored along different dimensions.
Tilman Sauer, Tobias Schütz
openaire   +3 more sources

A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly

open access: yesThe Astrophysical Journal, 2023
We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a quadruply lensed system in a cusp configuration, with a maximum image ...
Eilat Glikman   +14 more
doaj   +1 more source

Multi-messenger gravitational lensing. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
We introduce the rapidly emerging field of multi-messenger gravitational lensing—the discovery and science of gravitationally lensed phenomena in the distant universe through the combination of multiple messengers. This is framed by gravitational lensing phenomenology that has grown since the first discoveries in the twentieth century, messengers that ...
Smith GP   +40 more
europepmc   +9 more sources

Rotation in gravitational lenses [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
Gravitational lensing deflects light. A single lens deflector can only shear images, but cannot induce rotations. Multiple lens planes can induce rotations. Such rotations can be observed in quadruply imaged sources, and can be used to distinguish between two proposed solutions of the flux anomaly problem: substructures in lensing galaxies vs large ...
Pen, Ue-Li, Mao, Shude
openaire   +2 more sources

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