activity
19952025
most citedProbing for dynamics of dark energy and curvature of universe with latest cosmological observations

113 citations · 534 across the 30 of their papers we have counts for

collaborators

30 papers

astro-ph.CO2025★ 1 cited

The anisotropic expansion rate of the local Universe and its covariant cosmographic interpretation

Basheer Kalbouneh, Christian Marinoni, Roy Maartens +5

Without making any assumption on the underlying geometry and metric of the local Universe, we provide a measurement of the expansion rate fluctuation field using the Cosmicflows-4…

astro-ph.CO2016★ 39 cited

Power law cosmology model comparison with CMB scale information

Isaac Tutusaus, Brahim Lamine, Alain Blanchard +14

Despite the ability of the cosmological concordance model (CDM) to describe the cosmological observations exceedingly well, power law expansion of the Universe scale radius, $R(…

astro-ph.CO2009★ 35 cited

Cosmological parameter extraction and biases from type Ia supernova magnitude evolution

Sebastian Linden, Jean-Marc Virey, Andre Tilquin

We study different one-parametric models of type Ia Supernova magnitude evolution on cosmic time scales. Constraints on cosmological and Supernova evolution parameters are obtained…

astro-ph2008★ 51 cited

A test of the CPL parameterization for rapid dark energy equation of state transitions

Sebastian Linden, Jean-Marc Virey

We test the robustness and flexibility of the Chevallier-Polarski-Linder (CPL) parameterization of the Dark Energy equation of state in recovering a fo…

astro-ph2008★ 15 cited

The VIMOS VLT Deep Survey: Testing the gravitational instability paradigm at z ~ 1

C. Marinoni, L. Guzzo, A. Cappi +5

We have reconstructed the three-dimensional density fluctuation maps to z ~ 1.5 using the distribution of galaxies observed in the VVDS-Deep survey. We use this overdensity field t…

astro-ph2008★ 46 cited

On the determination of curvature and dynamical Dark Energy

J. -M. Virey, D. Talon-Esmieu, A. Ealet +2

Constraining simultaneously the Dark Energy(DE) equation of state and the curvature of the Universe is difficult due to strong degeneracies. To circumvent this problem when analyzi…