Results 41 to 50 of about 65,765 (275)

Reducing the weak lensing noise for the gravitational wave Hubble diagram using the non-Gaussianity of the magnification distribution [PDF]

open access: yes, 2010
Gravitational wave sources are a promising cosmological standard candle because their intrinsic luminosities are determined by fundamental physics (and are insensitive to dust extinction).
C. Shapiro   +9 more
core   +2 more sources

Exact gravitational lensing and rotation curve [PDF]

open access: yes, 2009
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
A. Erdelyi   +8 more
core   +1 more source

Weak gravitational lensing with DEIMOS [PDF]

open access: yes, 2011
We introduce a novel method for weak-lensing measurements, which is based on a mathematically exact deconvolution of the moments of the apparent brightness distribution of galaxies from the telescope's PSF.
Amara   +20 more
core   +4 more sources

Effect of the Brane-Dicke coupling parameter on weak gravitational lensing by wormholes and naked singularities [PDF]

open access: yesPhysical Review D, 2019
In this paper, we analyze the deflection angle of light by Brane-Dicke wormhole in the weak field limit approximation to find the effect of the Brane-Dicke coupling parameter on the weak gravitation lensing.
W. Javed, R. Babar, A. Ovgun
semanticscholar   +1 more source

Weak-lensing Mass Bias in Merging Galaxy Clusters

open access: yesThe Astrophysical Journal, 2023
Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs from the assumed model profile. In a merging system, the bias is expected
Wonki Lee   +8 more
doaj   +1 more source

Intrinsic alignment boosting: Direct measurement of intrinsic alignments in cosmic shear data [PDF]

open access: yes, 2010
Intrinsic alignments constitute the major astrophysical systematic for cosmological weak lensing surveys. We present a purely geometrical method with which one can study gravitational shear-intrinsic ellipticity correlations directly in weak lensing data.
Amara   +46 more
core   +1 more source

Weak gravitational lensing by stringy black holes [PDF]

open access: yesThe European Physical Journal Plus, 2019
In this paper, we discuss the weak gravitational lensing in the context of stringy black holes. Initially, we examine the deflection angle of photon by charged stringy black hole.
W. Javed   +3 more
semanticscholar   +1 more source

Cross-correlation of the thermal Sunyaev–Zel’dovich effect and weak gravitational lensing: Planck and Subaru Hyper Suprime-Cam first-year data [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
Cross-correlation analysis of the thermal Sunyaev–Zel’dovich (tSZ) effect and weak gravitational lensing (WL) provides a powerful probe of cosmology and astrophysics of the intracluster medium. We present the measurement of the cross-correlation of tSZ
K. Osato   +6 more
semanticscholar   +1 more source

Periodontal microbiology and microbial etiology of periodontal diseases: Historical concepts and contemporary perspectives

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract This narrative review summarizes the collective knowledge on periodontal microbiology, through a historical timeline that highlights the European contribution in the global field. The etiological concepts on periodontal disease culminate to the ecological plaque hypothesis and its dysbiosis‐centered interpretation.
Georgios N. Belibasakis   +5 more
wiley   +1 more source

Weak lensing, dark matter and dark energy

open access: yes, 2010
Weak gravitational lensing is rapidly becoming one of the principal probes of dark matter and dark energy in the universe. In this brief review we outline how weak lensing helps determine the structure of dark matter halos, measure the expansion rate of ...
A. Amara   +123 more
core   +1 more source

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