## Search

Now showing items 1-7 of 7

#### Gravitational energy as dark energy: Towards concordance cosmology without Lambda

(University of Canterbury. Physics and Astronomy, 2009)

I briefly outline a new physical interpretation to the average cosmological parameters for an inhomogeneous universe with backreaction. The variance in local geometry and gravitational energy between ideal isotropic observers ...

#### The disc-dominated host galaxy of FR-I radio source B2 0722+30

(University of Canterbury. University Centre for Teaching and Learning, 2009)

We present new observational results that conclude that the nearby radio galaxy B2 0722+30 is one of the very few known disc galaxies in the low–redshift Universe that host a classical double–lobed radio source. In this ...

#### Average observational quantities in the timescape cosmology

(University of Canterbury. Physics and Astronomy, 2009)

We examine the properties of a recently proposed observationally viable alternative to homogeneous
cosmology with smooth dark energy, the timescape cosmology. In the timescape model
cosmic acceleration is realized as an ...

#### Gravitational energy as dark energy: Average observational quantities

(University of Canterbury. Physics and Astronomy, 2009)

In the timescape scenario cosmic acceleration is understand as an apparent effect, due to gravitational energy
gradients that grow when spatial curvature gradients become significant with the nonlinear growth of cosmic ...

#### Gravitational energy as dark energy: Towards concordance cosmology without Lambda

(University of Canterbury. Physics and Astronomy, 2009)

I briefly outline a new physical interpretation to the average cosmological parameters for an inhomogeneous universe with backreaction. The variance in local geometry and gravitational energy between ideal isotropic observers ...

#### From time to timescape: Einstein's unfinished revolution

(University of Canterbury. Physics and Astronomy, 2009)

I argue that Einstein overlooked an important aspect of the relativity of time in never quite realizing his quest to embody Mach’s principle in his theory of gravity. As a step towards that goal, I broaden the Strong ...

#### Average observational quantities in the timescape cosmology

(University of Canterbury. Physics and Astronomy, 2009)

We examine the properties of a recently proposed observationally viable alternative to homogeneous
cosmology with smooth dark energy, the timescape cosmology. In the timescape model
cosmic acceleration is realized as an ...