Results 191 to 200 of about 64,331 (279)

Scattering of gravitational waves by the weak gravitational fields of lens objects [PDF]

, 2005
Ryuichi Takahashi, Takao Suyama, Shugo Michikoshi   +2 more
openalex   +1 more source

Exploring Weak Gravitational Lensing Effects by a Regular Black Hole

Spektra: Jurnal Fisika dan Aplikasinya
Gravitational lensing is one of the physical consequences of Einstein’s general theory of relativity, which has been observationally confirmed. This work aims to study the weak gravitational lensing scenario where the lens is a spherically symmetric ...
A. K. Durrani, H. S. Ramadhan
doaj   +1 more source

Neural style transfer of weak lensing mass maps

The Open Journal of Astrophysics
We propose a new generative model of projected cosmic mass density maps inferred from weak gravitational lensing observations of distant galaxies (weak lensing mass maps).
Masato Shirasaki, Shiro Ikeda
doaj   +1 more source

The Dark Matter, Gas, and Galaxy Distributions in Abell 2218: A Weak Gravitational Lensing and X-Ray Analysis

, 1996
G. Squires, N. Kaiser, Arif Babul, G. G. Fahlman, David Woods, D. M. Neumann, H. Boehringer   +6 more
openalex   +1 more source

Weak-lensing Characterization of the Dark Matter in 29 Merging Clusters that Exhibit Radio Relics

The Astrophysical Journal Supplement Series
We present a multiwavelength analysis of 29 merging galaxy clusters that exhibit radio relics. For each merging system, we perform a weak-lensing analysis on Subaru optical imaging.
Kyle Finner, M. James Jee, Hyejeon Cho, Kim HyeongHan, Wonki Lee, Reinout J. van Weeren, David Wittman, Mijin Yoon   +7 more
doaj   +1 more source

Gravitational Lensing for A Spherically Symmetric Regular Charged Black Hole in Weak Field Limit

Spektra: Jurnal Fisika dan Aplikasinya
Gravitational lensing is an integral part of the study of general relativity, as it is one of the direct consequences of general relativity. The existence of singularity within the black hole due to gravitational collapse is one of the key properties of ...
M. F. Shidik, H. Ramadhan
doaj   +1 more source

Light bending and gravitational lensing in Brans-Dicke theory

Physics Letters B, 2019
As an important candidate theory of gravity, Brans-Dicke theory has been widely studied. In this paper, we investigate light bending and gravitational lensing by compact objects in Brans-Dicke theory in weak gravitational field.
Xiaojun Gao, Shupeng Song, Jinsong Yang
doaj  

Preliminary Evidence for Lensing-induced Alignments of High-redshift Galaxies in JWST-CEERS

The Astrophysical Journal
The majority of low-mass ( ${\mathrm{log}}_{10}{M}_{* }/{M}_{\odot }=9\mbox{--}10$ ) galaxies at high redshift ( z  > 1) appear elongated in projection. We use JWST-CEERS observations to explore the role of gravitational lensing in this puzzle.
Viraj Pandya, Abraham Loeb, Elizabeth J. McGrath, Guillermo Barro, Steven L. Finkelstein, Henry C. Ferguson, Norman A. Grogin, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Casey Papovich, Nor Pirzkal, L. Y. Aaron Yung   +11 more
doaj   +1 more source

Weak gravitational lensing of distant galaxies

The Astrophysical Journal, 1992
We analyze the two-point statistics of the gravitationally induced ellipticities of distant images whick provide a direct probe of the mass fluctuation spectrum P(k). The analysis extends previous work in the following respects : (1) We explore the relation between the ellipticity pattern of the background galaxies and the projected density of ...
openaire   +2 more sources

Weak Gravitational lensing by phantom black holes and phantom wormholes using the Gauss–Bonnet theorem [PDF]

Annals of Physics, 2018
A. Ovgun, G. Gyulchev, K. Jusufi
semanticscholar   +1 more source