Results 11 to 20 of about 57,017 (311)
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
This is a short and biased review of gravitational lensing with emphasis on the radio and especially VLBI aspects. We briefly explain the basic idea and give a short sketch of the discovery of the first lens, before we more systematically discuss the ...
Wucknitz, Olaf
core +2 more sources
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
Multi-messenger gravitational lensing. [PDF]
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 +10 more sources
The bending of light reveals information about dark energy, dark matter, and black holes.
Koopmans, LVE, Blandford, RD
+6 more sources
AbstractIn the roughly 20 years of its existence as an observational science, gravitational lensing has established itself as a valuable tool in many astrophysical fields. In the introduction of this review we briefly present the basics of lensing. Then it is shown that the two propagation effects, lensing and scintillation, have a number of properties
Surdej, Jean, Claeskens, Jean-François
+5 more sources
Inverting Gravitational Lenses [PDF]
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
Exploring gravitational lensing [PDF]
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
Weak gravitational lensing [PDF]
Review; 223 pages; figures embedded; to be submitted to Physics Reports; constructive comments are ...
Bartelmann, M., Schneider, P.
openaire +3 more sources
Toward an Optimal Reconstruction of the Shear Field with PDF-folding
Weak lensing provides a direct way of mapping the density distribution in the Universe. To reconstruct the density field from the shear catalog, an important step is to build the shear field from the shear catalog, which can be quite nontrivial due to ...
Haoran Wang +3 more
doaj +1 more source

