Results 191 to 200 of about 68,770 (225)

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

Fujimoto S, Ouchi M, Kohno K, Valentino F, Giménez-Arteaga C, Brammer G, Furtak L, Kohandel M, Oguri M, Pallottini A, Richard J, Zitrin A, Bauer F, Boylan-Kolchin M, Dessauges-Zavadsky M, Egami E, Finkelstein S, Ma Z, Smail I, Watson D, Hutchison T, Rigby J, Welch B, Ao Y, Bradley L, Caminha G, Caputi K, Espada D, Endsley R, Fudamoto Y, González-López J, Hatsukade B, Koekemoer A, Kokorev V, Laporte N, Lee M, Magdis G, Ono Y, Rizzo F, Shibuya T, Shimasaku K, Sun F, Toft S, Umehata H, Wang T, Yajima H.   +45 more
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First measurement of the Weyl potential evolution from the Year 3 Dark Energy Survey data: Localising the σ8 tension

Bonvin C, Tutusaus I, Grimm N.
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Statistical methods in weak gravitational lensing

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Weak Gravitational Lensing

This chapter provides a comprehensive overview of weak gravitational lensing and its current applications in cosmology. We begin by introducing the fundamental concepts of gravitational lensing and derive the key equations for the deflection angle ...
J. Prat, D. Bacon
semanticscholar   +3 more sources

Weak Gravitational Lensing

The Dark Energy Survey, 2020
1 • Foreground Masses Can Magnify and Distort Background Sources • Faint, High-z Galaxies Provide a “Cosmic Wallpaper” Upon Which the Lensing Mass is Projected – At even modest redshifts there are ~ 50 galaxies/arcmin2.
D. Gruen, B. Jain, Michael Troxel
semanticscholar   +3 more sources

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Particle dynamics, black hole shadow and weak gravitational lensing in the f (Q) theory of gravity

Communications in Theoretical Physics, 2023
We study the particle dynamics around a black hole (BH) in f(Q) gravity. First, we investigate the influence of the parameters of f(Q) gravity on the horizon structure of the BH, photon orbits and the radius of the innermost stable circular orbit (ISCO ...
A. Ditta, Tiecheng Xia, Farruh Atamurotov, Ibrar Hussain, G. Mustafa   +4 more
semanticscholar   +1 more source

Shadow and weak gravitational lensing for Ellis-Bronnikov wormhole

Chinese Physics C, High Energy Physics & Nuclear Physics, 2023
In this study, we investigated the gravitational weak lensing and shadow of the Ellis-Bronnikov wormhole. First, we studied the photon motion in a plasma medium and a wormhole shadow.
Mirzabek Alloqulov, Farruh Atamurotov, A. Abdujabbarov, B. Ahmedov, Vokhid Khamidov   +4 more
semanticscholar   +1 more source

Shadow and weak gravitational lensing of a rotating regular black hole in a non-minimally coupled Einstein-Yang-Mills theory in the presence of plasma

The European Physical Journal Plus, 2022
The null geodesics of the regular and rotating magnetically charged black hole in a non-minimally coupled Einstein-Yang-Mills theory surrounded by a plasma medium is studied.
Shubham Kala, H. Nandan, P. Sharma
semanticscholar   +1 more source

Weak gravitational lensing around dyonic ModMax black hole in plasma

Communications in Theoretical Physics
In this study, we examine the effects of weak gravitational lensing and determine the shadow radius around black holes within the Dyonic ModMax (DM) spacetime, also accounting for models with nonuniform plasma distributions.
Ziyodulla Turakhonov, Farruh Atamurotov, A. Övgün, A. Abdujabbarov, Sunnatillo Urinov   +4 more
semanticscholar   +1 more source

Weak Gravitational Lensing

2015
In this chapter, we summarize the basics of gravitational lensing. We derive the basic equation in gravitational lensing and summarize the relation between observables and physical quantities. We then introduce some statistical methodologies to extract cosmological information from gravitational lensing analysis.
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