Fluctuations of the luminosity distance

By C. Bonvin, R. Durrer, M. A. Gasparini. 2005

204 citations recorded by the source corpus.

We derive an expression for the luminosity distance in a perturbed Friedmann universe. We define the correlation function and the power spectrum of the luminosity distance fluctuations and express them in terms of the initial spectrum of the Bardeen potential. We present semianalytical results for the case of a pure CDM (cold dark matter) universe. We argue that the luminosity distance power spectrum represents a new observational tool which can be used to determine cosmological parameters. In addition, our results shed some light into the debate whether second order small scale fluctuations can mimic an accelerating universe.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/3bcdda050c3f740c33166b5811d5c1dbf7055f77

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. R. Durrer
2. C. Caprini
3. Tomi Koivisto
4. D. Mota
5. Julien Lesgourgues
6. Francesco Montanari
7. Nicola Tamanini
8. E. Dio

In Nuclear and High Energy Physics

1. Tomi Koivisto
2. R. Durrer
3. D. Mota
4. C. Caprini
5. Nicola Tamanini
6. Francesco Montanari
7. E. Dio
8. E. Barausse

Citations in the corpus

• Accelerating Cosmologies with an Anisotropic Equation of State (2007, background): “The luminosity distance as a probe of anisotropies has been considered in [88, 89].”
• The CLASSgal code for relativistic cosmological large scale structure (2013, background): “The last term is not present in [23], since there it is assumed that Ψ = Φ, however, it can be found e.”
• Dark Energy from structure: a status report (2007, background): “owever, different strategies proposed and pursued in [145]), [22], and [133]), which in turn is related to the issue of light–propagation in an inhomogeneous Universe (see [102], [103], [104], [183], [23], [130], and discussion and references in [72]). A promising strategy to exploit the LTB solutio”
• Science with the space-based interferometer eLISA. III: probing the expansion of the universe using gravitational wave standard sirens (2016, methodology): “Second, we add to this “experimental” error those due to weak-lensing and peculiar velocities, σlens(z) and σv(z) [19, 43].”