Gravitational lensing: weak
Influence of the local Universe on weak gravitational lensing surveys
... the gravitational potential at source and lens, time delay effects coupling to the ...and weak gravitational lensing; Sections 3 and 4 outline the statistical method, including the conditional ...
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Weak gravitational lensing by Einstein-non-linear-Maxwell-Yukawa black hole
... Weak gravitational lensing for hairy BH in the back burner of Einstein-Maxwell theory (EMT) with a non- minimally coupled dilaton has been examined by Javed et ...of weak gravitational ...
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Weak Gravitational Lensing by Bocharova-Bronnikove-Melnikov-Bekenstein Black Holes Using Gauss-bonnet Theorem
... In this article, we demonstrate the weak gravitational lensing in the context of Bocharova- Bronnikove-Melnikov-Bekenstein (BBMB) black hole. To this desire, we derive the deflection angle of light ...
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The Effect of the Brane-Dicke Coupling Parameter on Weak Gravitational Lensing by Wormholes and Naked Singularities
... In this work, we study the BD wormhole solutions to investigate the gravitational lensing in weak field limits. Recently, Gibbons and Werner (GW) have proposed the method to obtain the deflection ...
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Renneby, Malin Nicole (2019): Weak gravitational lensing as a probe of large-scale structure and galaxy formation. Dissertation, LMU München: Fakultät für Physik
... In addition, new and upcoming large-scale structure surveys such as the Hyper Suprime- Cam SSP Survey (HSC) (Aihara et al., 2018), the Euclid satellite (Laureijs et al., 2011) and the Large Synoptic Survey Telescope ...
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Gravitational lensing from a spacetime perspective
... of lensing comes in several variants, and the relation to the exact formalism is not always evident because sometimes plausibility and ad-hoc assumptions are implicitly ...the gravitational field of the ...
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Wave Optics and Image Formation in Gravitational Lensing
... Gravitational lensing is one of predictions of Einstein’s general theory of relativity and many samples of images caused by gravitational lensing have been obtained ob- servationally ...by ...
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Testing New Weak Lensing Measurement Techniques With The Dark Energy Survey
... The Dark Energy Survey (DES) 1 is a five-year 5,000 deg 2 photometric survey of the Southern sky over Chile. DES uses a 570 Megapixel camera, the Dark Energy Camera (DECam, Figure 1.9a), mounted on the Blanco 1.4-meter ...
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Herschel ATLAS/GAMA: SDSS cross correlation induced by weak lensing
... The direct effect of gravitational lensing by massive haloes (the 1-halo term) is not enough to account for the observed signal on arcmin scales. This was shown by repeating the simulations for the case of ...
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Halkola, Aleksi (2007): Gravitational Lensing in Galaxy Cluster Abell 1689. Dissertation, LMU München: Fakultät für Physik
... to weak lensing and X-ray estimates of the cluster mass, strong lensing methods obtain total masses consistently higher by factor of ...both weak lensing and X-ray methods lead to ...
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Weak Lensing and Modified Gravity of Cosmic Structure
... gravitational lensing by large voids (Fig. 5.5), ruling out the null hypothesis with a signif- icance of about 13 − 16σ depending on the cuts made on the void finder. This detection may be surprising given ...
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Effect of the Dilaton Field on Deflection Angle of Massive Photons by Black Holes in Einstein-Maxwell-Dilaton-Axion Theory
... The gravitational bending of light by mass prompted the first exploratory confirmations of the general theory of ...then gravitational lensing ...years, lensing has become an amazing test of ...
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H ATLAS/GAMA: magnification bias tomography Astrophysical constraints above ∼1 arcmin
... The gravitational lensing effect produced by a foreground deflector magnifies the light rays coming from background sources along the line-of-sight and stretches the area of the sky region around ...the ...
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To the horizon and beyond: weak lensing of the CMB and binary inspirals into horizonless objects
... Gravitational lensing – the deflection of photon trajectories by density perturbations – has been a fundamental prediction of general relativity since it was first developed by Einstein in ...the ...
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Deflection Angle of Photon Through Dark Matter by Black Holes/Wormholes Using the Gauss-Bonnet Theorem
... a gravitational lensing [14], that the light rays from distant stars and galaxies are deflected by a planet, a black hole, or dark matter [15, 16] ...the weak gravita- tional lensing is very ...
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Effect of the Hair on Deflection Angle by Asymptotically Flat Black Holes in Einstein-Maxwell-Dilaton Theory
... the weak gravitational lensing in the spacetime of hairy black hole in Einstein-Maxwell theory with a non-minimally coupled dilaton and its non-trivial ...on weak gravitational ...
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A Kinematical approach to gravitational lensing
... the Weak-Field Approximation and the Post-Newtonian ...some lensing models have been developed using such theories; for example, see Mortlock &Turner ...
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Gravitational Lensing with a Large Deflection Angle as a Probe of General Relativity and the Galactic Center
... Gravitational lensing (“lensing”) occurs when a gravitating mass distorts a space- time and anything in ...a weak gravitational field, the metric is the Minkowski metric with a ...
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Rau, Markus Michael (2017): Photometric redshift estimation for precision cosmology. Dissertation, LMU München: Fakultät für Physik
... This gravitational lensing effect, ...modern Gravitational Lensing has evolved into a powerful tool for cos- mology and ...strong lensing also provides a method to measure the Hubble ...
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Event horizons, gravitational waves and astrophysical kicks in black-hole spacetimes
... Moreover, the field of numerical relativity is not just coding and running simulations but also a lot of work has been done in obtaining formulations of the theory [128, 142, 143, 144, 145, 146, 147, 148]. Basically ...
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