Results 51 to 60 of about 236,146 (270)
The mass–richness relation of optically selected clusters from weak gravitational lensing and abundance with Subaru HSC first-year data [PDF]
Nippon Tenmon Gakkai obun kenkyu hokoku, 2019 Constraining the relation between the richness N and the halo mass M over a wide redshift range for optically selected clusters is a key ingredient for cluster-related science in optical surveys, including the Subaru Hyper Suprime-Cam (HSC) survey.
Ryoma Murata +8 more
semanticscholar +1 more source
Weak Gravitational Lensing [PDF]
Phys.Rept.340:291-472,2001, 1999 We review theory and applications of weak gravitational lensing. After summarising Friedmann-Lemaitre cosmological models, we present the formalism of gravitational lensing and light propagation in arbitrary space-times. We discuss how weak-lensing effects can be measured.
arxiv +1 more source
Degeneracy in exotic gravitational lensing [PDF]
, 2002 We present three different theoretically foreseen, but unusual, astrophysical situations where the gravitational lens equation ends up being the same, thus producing a degeneracy problem.
Cooray A. +9 more
core +2 more sources
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering [PDF]
, 2017 We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg(2) of imaging data by the Kilo Degree Survey (KiDS-450) overlapping with two ...
S. Joudaki +21 more
semanticscholar +1 more source
Embedded in context: How time and distance affect the convergence of personnel selection practices
Human Resource Management Journal, Volume 33, Issue 1, Page 47-68, January 2023., 2023 Abstract The debate on convergence versus divergence or stasis in human resource management (HRM) practices over time is still ongoing. We look at configurations of organisations' personnel selection practices and empirically analyse the role of geographic, cultural and regulatory institutional distance between countries for emerging similarity or ...
Torsten Biemann +2 more
wiley +1 more source
A New Method for measuring Weak Gravitational Lensing Shear using Higher Order Spin-2 HOLICs [PDF]
Astrophys.J.699:143-149,2009, 2008 We investigate the possibility to use higher order moments of gravitational lensed images in the weak lensing analysis. For this purpose we employ spin-2 component of HOLICs(Higher Order Lensing Characteristics) developed by us. We test the weak lensing analysis with spin-2 HOLICs using actual, ground based Subaru observations of the massive galaxy ...
arxiv +1 more source
Weak Gravitational Lensing by Dark Clusters [PDF]
, 2002 We calculate the abundance of dark-matter concentrations that are sufficiently overdense to produce a detectable weak-gravitational-lensing signal. Most of these overdensities are virialized halos containing identifiable X-ray and/or optical clusters ...
Kamionkowski, Marc, Weinberg, Nevin N.
core +4 more sources
Studying galaxy troughs and ridges using weak gravitational lensing with the Kilo-Degree Survey [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We study projected underdensities in the cosmic galaxy density field known as 'troughs', and their overdense counterparts, which we call 'ridges'. We identify these regions using a bright sample of foreground galaxies from the photometric Kilo-Degree ...
M. Brouwer +17 more
semanticscholar +1 more source
Walking the Talk? Managing Errors in the Audit Profession*
Contemporary Accounting Research, Volume 39, Issue 4, Page 2696-2729, Winter 2022., 2022 ABSTRACT Errors reflect unintended deviations from plans or goals and commonly carry negative connotations. Although errors cannot be eliminated, they offer opportunities for learning and innovation. Audit firms employ powerful mechanisms, such as review processes, to prevent or detect audit errors and safeguard their work in the public interest.
Anna Gold +4 more
wiley +1 more source
Gravitational lensing by a black-bounce-Reissner–Nordström spacetime
European Physical Journal C: Particles and Fields, 2022 We investigate the weak and strong deflection gravitational lensing by a black-bounce-Reissner–Nordström spacetime and obtain their lensing observables. Assuming the supermassive black holes in the Galactic Center and at the center of M87, Sgr A* and M87*
Jing Zhang, Yi Xie
doaj +1 more source