# CMB dipoles and other low-order multipoles in the quasispherical Szekeres model

@article{Buckley2013CMBDA, title={CMB dipoles and other low-order multipoles in the quasispherical Szekeres model}, author={Robert G. Buckley and Eric M. Schlegel}, journal={Physical Review D}, year={2013}, volume={87}, pages={023524} }

Several authors have previously shown that Gpc-scale void based on the spherically symmetric LTB model can provide a good fit to certain cosmological data, including the SNIa data, but it is only consistent with the observed CMB dipole if we are located very close to the center, in violation of the Copernican principle. In this work we investigate the more general quasispherical Szekeres model, which does not include spherical symmetry, in order to determine whether this option may be less…

## 18 Citations

### Multiple nonspherical structures from the extrema of Szekeres scalars

- Physics
- 2015

We examine the spatial extrema (local maxima, minima and saddle points) of the covariant scalars (density, Hubble expansion, spatial curvature and eigenvalues of the shear and electric Weyl tensors)…

### Inhomogeneity of the $\Lambda$LTB models

- Physics
- 2016

The Lemaitre-Toman-Bondi (LTB) models have reported to suffer from incompatibility with cosmological observations and fine-tuning of the observer's location. Further analysis of these issues…

### The effects of structure anisotropy on lensing observables in an exact general relativistic setting for precision cosmology

- Physics
- 2014

The study of relativistic, higher order, and nonlinear effects has become necessary in recent years in the pursuit of precision cosmology. We develop and apply here a framework to study gravitational…

### Physical geometry of the quasispherical Szekeres models

- PhysicsPhysical Review D
- 2020

The quasispherical Szekeres metric is an exact solution to Einstein's equations describing an inhomogeneous and anisotropic cosmology. Though its governing equations are well-known, there are subtle,…

### Lagrangian theory of structure formation in relativistic cosmology. VI. Comparison with Szekeres exact solutions

- Physics
- 2020

We examine the relation between the Szekeres models and relativistic Lagrangian perturbation schemes, in particular the Relativistic Zel'dovich Approximation (RZA). We show that the second class of…

### Differential cosmic expansion and the Hubble flow anisotropy

- Physics
- 2015

The Universe on scales 10–100 h−1Mpc is dominated by a cosmic web of voids, filaments, sheets and knots of galaxy clusters. These structures participate differently in the global expansion of the…

### Coarse-grained description of cosmic structure from Szekeres models

- Mathematics
- 2015

We show that the full dynamical freedom of the well known Szekeres models allows for the description of elaborated 3-dimensional networks of cold dark matter structures (over-densities and/or density…

### Effects of anisotropy on gravitational infall in galaxy clusters using an exact general relativistic model

- Physics
- 2013

We study the effects and implications of anisotropies at the scale of galaxy clusters by building an exact general relativistic model of a cluster using the inhomogeneous and anisotropic Szekeres…

### Effects of anisotropy on gravitational infall in galaxy clusters using an exact general relativistic model

- Physics
- 2013

We study the effects and implications of anisotropies at the scale of galaxy clusters by building an exact general relativistic model of a cluster using the inhomogeneous and anisotropic Szekeres…

### Rotation, embedding, and topology for the Szekeres geometry

- Mathematics
- 2020

Recent work on the Szekeres inhomogeneous cosmological models uncovered a surprising rotation effect. Hellaby showed that the angular $(\theta, \phi)$ coordinates do not have a constant orientation,…

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