Results 81 to 90 of about 186,042 (191)

Gravitational lensing and microlensing

, 2002
This book provides a comprehensive and self-contained exposition of gravitational lensing phenomena. It presents the up-to-date status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies ...
Roulet, Esteban, Mollerach, Silvia
core  

μ-GLANCE: A Novel Technique to Detect Chromatically and Achromatically Lensed Gravitational-wave Signals

The Astrophysical Journal
Gravitational microlensing in the wave-optics (WO) regime occurs when the Schwarzschild radius of a lensing object is comparable to or smaller than the wavelength of incoming gravitational waves (GWs), producing chromatic amplitude and phase modulations.
Aniruddha Chakraborty, Suvodip Mukherjee
doaj   +1 more source

Prospects and pitfalls of gravitational lensing in large supernova surveys

, 2008
supernovae: gravitational lensing Udgivelsesdato: 5 ...
Sollerman, Jesper Olof, J. Jönsson, T. Kronborg, Kronborg, Taia Brix, J. Sollerman, E. Mörtsell, Mörtsell, E., Jönsson, J.   +7 more
core   +1 more source

Weak gravitational lensing cross-correlations

, 2017
The matter content of the Universe is dominated by dark matter. Beyond its abundance and its lack of non-gravitational interactions with standard model matter, little is known about the nature of dark matter.
Tröster, Tilman
core   +1 more source

Dark Matter Distinguished by Skewed Microlensing in the “Dragon Arc”

The Astrophysical Journal Letters
Many microlensed stars discovered by JWST closely follow the winding critical curve of A370 along the “Dragon Arc” with m _AB  > 26.5, which we show comprises asymptotic giant branch stars microlensed by the observed level of diffuse cluster stars ...
Tom Broadhurst, Sung Kei Li, Amruth Alfred, Jose M. Diego, Paloma Morilla, Patrick L. Kelly, Fengwu Sun, Masamune Oguri, Hayley Williams, Rogier Windhorst, Adi Zitrin, Katsuya T. Abe, Wenlei Chen, Liang Dai, Yoshinobu Fudamoto, Hiroki Kawai, Jeremy Lim, Tao Liu, Ashish K. Meena, Jose M. Palencia, George F. Smoot, Liliya L.R. Williams   +21 more
doaj   +1 more source

The Influence of Plasma Lensing Magnification on the Luminosity Function of Fast Radio Bursts

The Astrophysical Journal
Small-scale clumps of ionized gas have been suggested by observations in the interstellar medium and the circumgalactic medium. The propagation of radio signals can be deflected by these plasma clumps, i.e., plasma lensing.
Xinzhong Er, Weishan Zhu, Shude Mao, Dongzi Li   +3 more
doaj   +1 more source

Observational aspects of gravitational lensing [PDF]

, 1990
Various systematic optical surveys of multiply lensed extragalactic objects presently being conducted are reviewed to describe gravitational lens candidates and the effects of gravitational lensing.
Surdej, Jean
core   +1 more source

Gravitational lensing and rotation curve [PDF]

, 2018
Based on the geodesic equation in a static spherically symmetric metric we discuss the rotation curve and gravitational lensing. The rotation curve determines one function in the metric without assuming Einstein's equations. Then lensing is considered in
Bräunlich, Gerhard, Scharf, Günter
core  

Modeling Binary Lenses and Sources with the BAGLE Python Package

The Astrophysical Journal
Gravitational microlensing is a powerful tool that can be used to find and measure the mass of isolated and dark compact objects. In many microlensing events, the lens, the source, or both may be binary systems.
T. Dex Bhadra, J. R. Lu, Natasha S. Abrams, Andrew Scharf, Edward Broadberry, Casey Lam, Macy J. Huston   +6 more
doaj   +1 more source

Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting

The Astrophysical Journal
We use numerical mass density profiles from the TNG50 simulation to study the impact of gravitational milli-lensing by dark matter subhaloes on the images of lensed quasars.
E. Mediavilla, J. Jiménez-Vicente, F. M. Heinze, J. Martín Camalich   +3 more
doaj   +1 more source