Andere Kunden interessierten sich auch für
![Gravitational Lensing in Standard and Alternative Cosmologies]( "Gravitational Lensing in Standard and Alternative Cosmologies")
Gravitational Lensing in Standard and Alternative Cosmologies44,99 €![Cosmological Parameter Forecasts with Weak Gravitational Lensing]( "Cosmological Parameter Forecasts with Weak Gravitational Lensing")
Cosmological Parameter Forecasts with Weak Gravitational Lensing51,99 €![Weak Gravitational Lensing of Large Scale Structures]( "Weak Gravitational Lensing of Large Scale Structures")
Weak Gravitational Lensing of Large Scale Structures26,99 €![Chiral Four-Dimensional Heterotic String Vacua from Covariant Lattices]( "Chiral Four-Dimensional Heterotic String Vacua from Covariant Lattices")
Chiral Four-Dimensional Heterotic String Vacua from Covariant Lattices74,99 €![Covariant Perturbations in f(R)-Gravity of Multi-Fluid Cosmologies]( "Covariant Perturbations in f(R)-Gravity of Multi-Fluid Cosmologies")
Covariant Perturbations in f(R)-Gravity of Multi-Fluid Cosmologies32,99 €![A Monte Carlo Approach to Radiative Transfer]( "A Monte Carlo Approach to Radiative Transfer")
A Monte Carlo Approach to Radiative Transfer38,99 €![Determination of the Gravitational Constant Using a Beam Balance]( "Determination of the Gravitational Constant Using a Beam Balance")
Determination of the Gravitational Constant Using a Beam Balance32,99 €
Null geodesics describe the path that light rays follow in space-time. A better understanding of their properties in any given space-time is therefore crucial in interpreting the information they convey to an observer. The main focus of this book is to study the properties of null geodesics in general relativistic models. The book is essentially divided into two parts. In the first part, the (1+3)-covariant formalism is introduced, which will be used to study null geodesics and their applications to gravitational lensing. A general form of the null geodesic deviation equation is derived. The significance of this equation lies in the fact that it can be used in any given space-time. Various applications of this equation are studied, including its role in determining area-distance relations in the Friedmann-Lemaitre-Robertson-Walker cosmological model. The null geodesic deviation equation is also used to derive a covariant form of the angle of deflection, showing its versatile applications in gravitational lensing theory. The second part of the book involves applying the (1+1+2)-covariant approach to gravitational lensing in spherically symmetric space-times.