**Cosmic Structure, Averaging and Dark Energy**

by David L. Wiltshire

**Publisher**: arXiv 2013**Number of pages**: 55

**Description**:

These lecture notes review the theoretical problems associated with coarse-graining the observed inhomogeneous structure of the universe at late epochs, of describing average cosmic evolution in the presence of growing inhomogeneity, and of relating average quantities to physical observables. In particular, a detailed discussion of the timescape scenario is presented.

Download or read it online for free here:

**Download link**

(630KB, PDF)

## Similar books

**TASI Lectures: Introduction to Cosmology**

by

**Mark Trodden, Sean M. Carroll**-

**arXiv**

These proceedings summarize lectures in elementary particle physics at the University of Colorado at Boulder. They provide a pedagogical introduction to cosmology aimed at advanced graduate students in particle physics and string theory.

(

**7880**views)

**Dark Energy: Observational Evidence and Theoretical Models**

by

**B. Novosyadlyj, V. Pelykh, Yu. Shtanov, A. Zhuk**-

**Akademperiodyka**

The book elucidates the current state of the dark energy problem and presents the results of the authors, who work in this area. It describes the observational evidence for the existence of dark energy, the methods of constraining of its parameters.

(

**4468**views)

**The Cosmic Web: Geometric Analysis**

by

**Rien van de Weygaert, Willem Schaap**-

**arXiv**

The lecture notes describe the Delaunay Tessellation Field Estimator for Cosmic Web analysis. The high sensitivity of Voronoi/Delaunay tessellations to the local point distribution is used to obtain estimates of density and related quantities.

(

**6460**views)

**Modified Gravity and Cosmology**

by

**T. Clifton, P.G. Ferreira, A. Padilla, C. Skordis**-

**arXiv**

In this review we present a thoroughly comprehensive survey of recent work on modified theories of gravity and their cosmological consequences. We cover General Relativity, Scalar-Tensor, Einstein-Aether, Bimetric theories, TeVeS, Galileons, etc.

(

**5164**views)