**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

**Advanced Topics in Cosmology: A Pedagogical Introduction**

by

**T. Padmanabhan**-

**arXiv**

Here is an introduction to several advanced topics in contemporary cosmology. Topics covered: the thermal history of the universe, linear perturbation theory, theory of CMBR temperature anisotropies and the inflationary generation of perturbation.

(

**5112**views)

**First Light**

by

**Abraham Loeb**-

**arXiv**

The first dwarf galaxies, which constitute the building blocks of the collapsed objects we find today, had formed hundreds of millions of years after the big bang. This review describes the early growth of their small-amplitude seed fluctuations.

(

**5709**views)

**The Cosmological Constant**

by

**Sean M. Carroll**-

**arXiv**

This is a review of the physics and cosmology of the cosmological constant. The author presents an overview of cosmology in the presence of a cosmological constant, observational constraints on its magnitude, and the physics of a small vacuum energy.

(

**4705**views)

**Cosmic Microwave Background Anisotropies up to Second Order**

by

**Nicola Bartolo, Sabino Matarrese, Antonio Riotto**-

**arXiv**

These notes present the computation of the system of Boltzmann equations describing the evolution of the photon, baryon and cold dark matter fluids up to second order in perturbation theory. They follow the time evolution of the CMB anisotropies.

(

**4458**views)