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The 4th UniverseNet School - Frontiers of Particle Cosmology

13–18 Sept 2010
Lecce, Università del Salento
Europe/Rome timezone
The 4th UniverseNet Annual School - Lecce, 13-18 September 2010

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Session

6 Talks (Chair: Poul DAMGAARD)

16 Sept 2010, 14:30
Lecce, Università del Salento

Lecce, Università del Salento

Via Michele De Pietro, 12 I-73100 Lecce (LE)

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  1. 28. Dr. BROUZAKIS, Nikolaos (IFAE Barcelona): Non-linear Matter Spectrum for a Variable Equation of State
    16/09/2010, 14:30
    We study the growth of matter perturbations beyond the linear level in cosmologies in which the dark energy has a variable equation of state. The non-linear corrections result in shifts in the positions of the maximum, minima and nodes of the spectrum within the range of Baryon Acoustic Oscillations. These can be used in order to distinguish theories with different late-time variability of the...
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  2. 29. Mr. DE LAVALLAZ, Arnaud (King's College London): Voids in LambdaCDM: Effects on Density Parameters
    16/09/2010, 14:45
    We consider a Swiss-cheese model embedded in a LambdaCDM universe in order to study the effects that voids might have on conclusions about dark energy. Testing various geometrical configurations, we want to analyse how voids could affect the values of Omega_m and Omega_{Lambda}.
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  3. 37. Ms. JENNINGS, Elise (Durham University): Predictions for large-scale structure in future galaxy redshift surveys
    16/09/2010, 15:00
    Forthcoming galaxy redshift surveys will make high precision measurements of the clustering of galaxies on scales in excess of 100/h Mpc. In particular, the quantification of the distortion of clustering due to the peculiar motions of galaxies and the scale of characteristic features in the galaxy distribution have been proposed as tests of the cosmic acceleration. To obtain robust constraints...
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  4. 30. Dr. MUSSO, Marcello (ICTP Trieste): Improved excursion set formalism for the halo mass function
    16/09/2010, 15:15
  5. 33. Dr. PARANJAPE, Aseem (ICTP Trieste): Improved calculations of the non-Gaussian mass functions for halos and voids (A)
    16/09/2010, 15:30
  6. 39. Mr. ROMANO, Antonio Enea (National Taiwan University): Dark energy or large scale inhomogeneities?
    16/09/2010, 15:45
    As an alternative to dark energy it has been suggested that we may be at the center of an inhomogeneous isotropic universe described by a Lemaitre-Tolman-Bondi (LTB) solution of Einstein's field equations. In order to test this hypothesis we calculate the general analytical formula to fifth order for the redshift spherical shell mass. Using the same analytical method we write the metric in...
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