Results 81 to 90 of about 1,077 (214)

Recursion relations for gravitational lensing

open access: yes, 2019
The weak gravitational lensing formalism can be extended to the strong lensing regime by integrating a nonlinear version of the geodesic deviation equation.
Normann, Ben David   +3 more
core   +1 more source

Topics in weak gravitational lensing [PDF]

open access: yes, 2022
In this thesis, various topics pertaining to weak gravitational lensing and its application to cosmology and galaxy evolution are explored. The first chapter is the introduction which contains all of the background information needed to understand the ...
Spitzer, Isaac
core  

A Scalable Gaussian Process Approach to Shear Mapping with MuyGPs

open access: yesThe Astrophysical Journal
Analysis of cosmic shear is an integral part of understanding structure growth across cosmic time, which in turn provides us with information about the nature of dark energy.
Gregory Sallaberry   +6 more
doaj   +1 more source

The spread of non‐native species

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

Statistical methods in weak gravitational lensing

open access: yes, 2015
This thesis studies several topics in the area of weak gravitational lensing and addresses some key statistical problems within this subject. A large part of the thesis concerns the measurement of galaxy shapes for weak gravitational lensing and the ...
Kacprzak, T
core  

Weak Gravitational Lensing and Cosmology [PDF]

open access: yes, 2017
Albert Einstein’s General Theory of Relativity radically transformed our understanding of gravitation. Along with this transformative view came several powerful predictions.
Gibson, Clint
core  

Gravitational lensing by exotic objects

open access: yes, 2017
This paper reviews a phenomenological approach to the gravitational lensing by exotic objects such as the Ellis wormhole lens, where the exotic lens objects may follow a non-standard form of the equation of state or may obey a modified gravity theory. A
Hideki Asada
core   +1 more source

CFHTLenS: Mapping the Large Scale Structure with Gravitational Lensing [PDF]

open access: yes, 2013
We present a quantitative analysis of the largest contiguous maps of projected mass density obtained from gravitational lensing shear. We use data from the 154 deg2 covered by the Canada-France-Hawaii Telescope Lensing Survey.
Miller, L.   +43 more
core   +1 more source

Eastward Growth of the Tibetan Plateau Linked to Cenozoic Orogenic Wedge Deformation and Fluctuating Melt Sources

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The India–Asia collision continuously loads the Tibetan Plateau (TP), driving its Cenozoic eastward growth. This process has caused extensive crustal deformation and a diverse magmatic response. Here, we report on newly identified 35−6.5 Ma granitoids from Kangding area in southeastern (SE) TP.
Quan Ou   +8 more
wiley   +1 more source

Gravitational lensing in observational cosmology

open access: yes, 2004
This paper reviews some previous theoretical and observational results concerning the various effects of gravitational lensing, and also presents still unpublished results in this field. The theoretical section deals with the Optical Scalar Equation (OSE)
L. Nottale
core   +1 more source

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