Results 31 to 40 of about 30,456 (275)
Optimizing tomography for weak gravitational lensing surveys [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The subject of this paper is optimization of weak lensing tomography: we carry out numerical minimization of a measure of total statistical error as a function of the redshifts of the tomographic bin edges by means of a Nelder–Mead algorithm in order to optimize the sensitivity of weak lensing with respect to different ...
Marvin Sipp +2 more
openaire +2 more sources
Gravitational lensing by a quantum deformed Schwarzschild black hole
European Physical Journal C: Particles and Fields, 2021 We investigate the weak and strong deflection gravitational lensing by a quantum deformed Schwarzschild black hole and find their observables. These lensing observables are evaluated and the detectability of the quantum deformation is assessed, after ...
Xu Lu, Yi Xie
doaj +1 more source
Intrinsic and Extrinsic Galaxy Alignment [PDF]
, 2000 We show with analytic models that the assumption of uncorrelated intrinsic ellipticities of target sources that is usually made in searches for weak gravitational lensing due to large-scale mass inhomogeneities (``field lensing'') is unwarranted.
Blandford, Roger D. +2 more
core +4 more sources
Simulations of weak gravitational lensing [PDF]
Astroparticle Physics, 2004 15 pages, 9 figures, Astroparticle Physics in ...
White, Martin, Vale, Chris
openaire +2 more sources
Periodontology 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
Scholarpedia, 2017 Invited and refereed contribution to ...
Bartelmann, Matthias, Maturi, Matteo
openaire +2 more sources
Reducing the weak lensing noise for the gravitational wave Hubble diagram using the non-Gaussianity of the magnification distribution [PDF]
, 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
Weak Gravitational Lensing by Galaxies [PDF]
The Astrophysical Journal, 1996 We report a detection of weak, tangential distortion of the images of cosmologically distant, faint galaxies due to gravitational lensing by foreground galaxies. A mean image polarization of ({ital p})=0.011{plus_minus}0.006 (95{percent} confidence bounds) is obtained for 3202 pairs of source (23{lt}{ital r}{sub {ital s}}{le}24) and lens (20{le}{ital r}
Brainerd, Tereasa G. +2 more
openaire +2 more sources
Exact gravitational lensing and rotation curve [PDF]
, 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
Power Spectrum Covariance of Weak Gravitational Lensing [PDF]
, 2000 Weak gravitational lensing observations probe the spectrum and evolution of density fluctuations and the cosmological parameters which govern them. At low redshifts, the non-linear gravitational evolution of large scale structure produces a non-Gaussian ...
Bernardeau F. +7 more
core +2 more sources