[PDF] Top 20 Gravitational lensing from a spacetime perspective

... here. Lensing by a Kerr black hole has been visualized (i) by showing the apparent distortion of a background pattern [346, 381] and (ii) by showing the visual appearence of an accretion disk [346, 350, 381, ... See full document

... Universe. Gravitational lensing is the leading ob- servational technique that gives insight into the distribution of baryonic matter in the stellar, galactic and cosmological scale, as well as the ... See full document

... that gravitational lensing can be affected from the hair of the black hole and it is a global effect as well as a valuable tool to study the nature of singularities of black ... See full document

... flat spacetime by using the finite distance from an observer to a light source has been calculated by Ishihara et ...axisymmetric spacetime have calculated the weak gravitational ...weak ... See full document

... 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 angle by ... See full document

... come from the idea of emergent gravity by Verlinde [9, 10], which argues that the competition between the vol- ume and area contribution of a spacetime’s entropy results in an additional ...arbitrary ... See full document

... 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 ...curved ... See full document

... Gravitational lensing (“lensing”) occurs when a gravitating mass distorts a space- time and anything in ...radiation from a star, galaxy, or other source are bent as ...directly from ... See full document

... This paper is organised as follows. In Sec. 2 we review the free field equations (2.1), and then the scalar (2.2.1), electromagnetic (2.2.2) and gravitational-wave (2.2.3) cases in more detail. In Sec. 3, we ... See full document

... The gravitational bending of light by mass prompted the first exploratory confirmations of the general theory of ...a spacetime. When a gravitating mass mutilates a spacetime what’s more, anything in ... See full document

... This thesis presents a mathematical model for the paths taken by light rays near a massive object such as a star or black hole. I begin the thesis by considering the spacetime around a non-rotating, uncharged, ... See full document

... This gravitational lensing effect, ...prediction from Newtonian gravity, which provided the first experimental confirmation of General ...modern Gravitational Lensing has evolved into a ... See full document

... Apart from simulating on-axis observations with varying lev- els of signal and background photon counts, partial shadowing of the mask pattern in the case of off-axis observations and the corresponding ... See full document

... them from its gravitational interactions and it is only known that dark matter is non-baryonic, non- relativistic (or cold), and it has weak non-gravitational ...Then from the unity, once can ... See full document

... The idea that all microscopic particles are sink flows in a fluidic substratum is not new. For instance, in order to compare fluid motions with electric fields, J. C. Maxwell introduced an analogy between source or sink flows ... See full document

... Abstract This paper is devoted to studying the generalized Chaplygin gas models in Bianchi type III spacetime geometry with time varying bulk viscosity, cosmological and gravitational co[r] ... See full document

... As mentioned in the present Introduction earlier on, the basic idea of the Nie- haus Zitterbewegung model [1] is to replace the ordinary path of a classical par- ticle ( d = 1 ) by a spiralling line representing a path ... See full document

... The laws of physics require conservation of momentum when the field contents ψ of fermionic or bosonic fields propagate from the in-connection(s) of a space point to the out-connection(s). Conservation of momentum ... See full document

... Much clearer than the application to spacetime, the concept of quantum entanglement has already promoted our understanding of Boltzmann entropy and statistical thermodynamics [19–21]. For a thermodynamic system we ... See full document

... which are made of a conformal structure and a connection. Unlike in standard GR the connection is not completely determined by the metric (and contains extra degrees of freedom encoded by the covector A). This setting is ... See full document