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 +4 more
semanticscholar +1 more source
KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints [PDF]
Astronomy & Astrophysics, 2020 We present a joint cosmological analysis of weak gravitational lensing observations from the Kilo-Degree Survey (KiDS-1000), with redshift-space galaxy clustering observations from the Baryon Oscillation Spectroscopic Survey (BOSS) and galaxy-galaxy ...
C. Heymans +30 more
semanticscholar +1 more source
Prospects of testing late-time cosmology with weak lensing of gravitational waves and galaxy surveys [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak lensing of gravitational waves (GW-WL) and the galaxy fields.
Anna Balaudo +4 more
semanticscholar +1 more source
Weak gravitational lensing by voids [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 We consider the prospects for detecting weak gravitational lensing by underdensities (voids) in the large-scale matter distribution. We derive the basic expressions for magnification and distortion by spherical voids. Clustering of the background sources and cosmic variance are the main factors which limit in principle the detection of lensing by voids.
Amendola, Luca +2 more
openaire +2 more sources
Reducing the impact of weak-lensing errors on gravitational-wave standard sirens [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The mergers of supermassive black hole binaries (SMBHBs) can serve as standard sirens: the gravitational wave (GW) analog of standard candles. The upcoming space-borne GW detectors will be able to discover such systems and estimate their luminosity ...
Zhaolong Wu +3 more
semanticscholar +1 more source
Weak gravitational lensing of the CMB [PDF]
Physics Reports, 2006 Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves.
Lewis, Antony, Challinor, Anthony
openaire +2 more sources
Constraints on early dark energy from CMB lensing and weak lensing tomography [PDF]
, 2009 . We estimate the B-polarisation induced in the Cosmic Microwave Background by the non-linear evolution of density perturbations. Using the second-order Boltzmann code SONG, our analysis incorporates, for the first time, all physical effects at ...
Schafer, B. +3 more
core +3 more sources
Future prospects on testing extensions to ΛCDM through the weak lensing of gravitational waves [PDF]
Physical Review D, 2022 With planned space-based and 3rd generation ground-based gravitational wave detectors (LISA, Einstein Telescope, Cosmic Explorer), and proposed DeciHz detectors (DECIGO, Big Bang Observer), it is timely to explore statistical cosmological tests that can ...
Charlie T. Mpetha, G. Congedo, A. Taylor
semanticscholar +1 more source
Charged black hole in 4D Einstein-Gauss-Bonnet gravity: particle motion, plasma effect on weak gravitational lensing and centre-of-mass energy [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We study the motion of charged and spinning particles and photons in the 4D charged Einstein-Gauss-Bonnet (EGB) black hole vicinity. We determine the radius of the innermost stable circular orbit (ISCO) for test particles.
Farruh Atamurotov +3 more
semanticscholar +1 more source
Gravitational Lensing Formalism in a Curved Arc Basis: A Continuous Description of Observables and Degeneracies from the Weak to the Strong Lensing Regime [PDF]
Astrophysical Journal, 2021 Gravitationally lensed curved arcs provide a wealth of information about the underlying lensing distortions. Extracting precise lensing information from extended sources is a key component in many studies aiming to answer fundamental questions about the ...
S. Birrer
semanticscholar +1 more source