Results 1 to 10 of about 56,380 (334)
Gravitational Lensing from a Spacetime Perspective [PDF]
Living Reviews in Relativity, 2004 The theory of gravitational lensing is reviewed from a spacetime perspective, without quasi-Newtonian approximations. More precisely, the review covers all aspects of gravitational lensing where light propagation is described in terms of lightlike ...
Volker Perlick
exaly +4 more sources
Gravitational lensing: a unique probe of dark matter and dark energy. [PDF]
Philos Trans A Math Phys Eng Sci, 2010 I review the development of gravitational lensing as a powerful tool of the observational cosmologist. After the historic eclipse expedition organized by Arthur Eddington and Frank Dyson, the subject lay observationally dormant for 60 years.
Ellis RS.
europepmc +4 more sources
Gravitational Lensing & Stellar Dynamics [PDF]
, 2006 Strong gravitational lensing and stellar dynamics provide two complementary and orthogonal constraints on the density profiles of galaxies. Based on spherically symmetric, scale-free, mass models, it is shown that the combination of both techniques is ...
L.V.E. (Leon) Koopmans +1 more
openalex +4 more sources
The gravitational bending of acoustic Schwarzschild black hole [PDF]
European Physical Journal C: Particles and Fields, 2023 Acoustic black hole is becoming an attractive topic in recent years, for it open-up new direction for experimental/observational explorations of black holes.
Chen-Kai Qiao, Mi Zhou
doaj +2 more sources
Geometric Outlines of the Gravitational Lensing and Its Astronomic Applications
Universe, 2023 Gravitational lensing is a topic of great application value in the field of astronomy. The properties and research methods of gravitational lensing are closely related to the geometric and relativistic characteristics of the background universe.
Bin Shen, Mingyang Yu
doaj +1 more source
Gravitational Lensing of Acoustic Charged Black Holes
The Astrophysical Journal, 2023 We study the gravitational lensing of acoustic charged black holes in strong and weak field limit approximations. For this purpose, we first numerically obtain the deflection limit coefficients and deflection angle in the strong field limit.
Niyaz Uddin Molla, Ujjal Debnath
doaj +1 more source
Detecting and Characterizing Young Quasars. III. The Impact of Gravitational Lensing Magnification
The Astrophysical Journal, 2023 We test the impact of gravitational lensing on the lifetime estimates of seven high-redshift quasars at redshift z ≳ 6. The targeted quasars are identified by their small observed proximity zone sizes, which indicate extremely short quasar lifetimes ( t ...
Minghao Yue +10 more
doaj +1 more source
Determination of Lens Mass Density Profile from Strongly Lensed Gravitational-wave Signals
The Astrophysical Journal, 2023 As the interferometers detecting gravitational waves are upgraded, improving their sensitivity, the probability of observing strong lensing increases. Once a detection is made, it will be critical to gain as much information as possible about the lensing
Mick Wright +2 more
doaj +1 more source
Toward an Optimal Reconstruction of the Shear Field with PDF-folding
The Astrophysical Journal, 2023 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
Gravitational Lensing of Supernova Neutrino Bursts
Universe, 2021 Supernova neutrino bursts have been observed from extragalactic distances. This note addresses the question of how gravitational lensing could distort the information in the burst.
John M. LoSecco
doaj +1 more source