Results 141 to 150 of about 65,765 (275)

Null Geodesics and Gravitational Lensing in a Nonsingular Spacetime

Advances in High Energy Physics, 2015
The null geodesics and gravitational lensing in a nonsingular spacetime are investigated. According to the nature of the null geodesics, the spacetime is divided into several cases.
Shao-Wen Wei, Yu-Xiao Liu, Chun-E Fu
doaj   +1 more source

Toward accurate galaxy cluster masses with gravitational weak lensing

, 2021
M Paulus
openalex   +2 more sources

Three‐dimensional gravity current interactions with oblique slopes: Deflection, reflection and combined‐flow behaviours

Sedimentology, EarlyView.
ABSTRACT Gravity currents interacting with planar slopes have been thought to always ‘reflect’ a component of flow orthogonal to the slope irrespective of the flow incidence angle. Incoming flows are argued to undergo gravitational collapse, and generate internal waves, that propagate perpendicular to the bounding slope.
Ru Wang, Jeff Peakall, David M. Hodgson, Ed Keavney, Helena C. Brown, Gareth M. Keevil   +5 more
wiley   +1 more source

Investigating the effects of gravitational lensing by Hu-Sawicki $$\varvec{f(R)}$$ f ( R ) gravity black holes

European Physical Journal C: Particles and Fields
In this work, gravitational lensing in the weak and strong field limits is investigated for black hole spacetime within the framework of Hu–Sawicki f(R) gravity. We employ the Ishihara et al.
Gayatri Mohan, Nashiba Parbin, Umananda Dev Goswami   +2 more
doaj   +1 more source

Unpacking Merit, Fit, and Diversity: A Multifaceted Framework to Academic Gatekeeping in Social Sciences at U.S. R1 Research Universities

Sociological Inquiry, EarlyView.
This study draws on interviews with 50 sociology and business professors across two private and five public American universities, and proposes a novel “Merit‐Fit‐Diversit” framework to show how narratives of merit, fit, and diversity emerge at different evaluation stages of tenure‐track job candidates. The evaluation produces inequality because: merit
Leping Wang
wiley   +1 more source

Non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter: Plasma lensing and thermodynamics analysis

Nuclear Physics B
The focus of this paper is to examine the properties of thermodynamics and weak gravitational lensing about the geometry of black holes within the context of a non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter.
Yihu Feng, Allah Ditta, G. Mustafa, S.K. Maurya, Asif Mahmood, Farruh Atamurotov   +5 more
doaj   +1 more source

Precision MARS Mass Reconstruction of A2744: Synergizing the Largest Strong-lensing and Densest Weak-lensing Data Sets from JWST

The Astrophysical Journal
We present a new high-resolution free-form mass model of A2744 that combines both weak-lensing (WL) and strong-lensing (SL) data sets from JWST. The SL data set comprises 286 multiple images, presenting the most extensive SL constraint to date for a ...
Sangjun Cha, Kim HyeongHan, Zachary P. Scofield, Hyungjin Joo, M. James Jee   +4 more
doaj   +1 more source

Visual and vestibular reweighting after cyber‐ and space‐sickness

Experimental Physiology, EarlyView.
Abstract Sensory conflicts are widely recognized as the primary drivers of motion sickness (MS), though the underlying integrative processes remain poorly understood. This study investigated sensory reweighting following exposure to two different sensory conflict paradigms. Visual and vestibular reflexes were assessed before and after sensory conflict.
Tess Bonnard, Emilie Doat, Jean‐René Cazalets, Dominique Guehl, Etienne Guillaud   +4 more
wiley   +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 Gravitational Potential Reconstruction from Peculiar Velocity and Weak Lensing Measurements [PDF]

, 2003
Olivier Doré, Lloyd Knox, Alan Peel
openalex   +1 more source