250 citations · 599 across the 7 of their papers we have counts for
7 papers
On the importance of nonlinear couplings in large-scale neutrino streams
Hélène Dupuy, Francis Bernardeau
We propose a procedure to evaluate the impact of nonlinear couplings on the evolution of massive neutrino streams in the context of large-scale structure growth. Such streams can b…
Cosmological Perturbation Theory for streams of relativistic particles
Hélène Dupuy, Francis Bernardeau
Motion equations describing streams of relativistic particles and their properties are explored in detail in the framework of Cosmological Perturbation Theory. Those equations, der…
Describing massive neutrinos in cosmology as a collection of independent flows
Hélène Dupuy, Francis Bernardeau
A new analytical approach allowing to account for massive neutrinos in the non-linear description of the growth of the large-scale structure of the universe is proposed. Unlike the…
Can all cosmological observations be accurately interpreted with a unique geometry?
Pierre Fleury, Hélène Dupuy, Jean-Philippe Uzan
The recent analysis of the Planck results reveals a tension between the best fits for (Ωm0, H0) derived from the cosmic microwave background or baryonic acoustic oscillations on th…
Interpretation of the Hubble diagram in a nonhomogeneous universe
Pierre Fleury, Hélène Dupuy, Jean-Philippe Uzan
In the standard cosmological framework, the Hubble diagram is interpreted by assuming that the light emitted by standard candles propagates in a spatially homogeneous and isotropic…
Atmospheric escape from HD 189733b observed in HI Lyman-alpha: detailed analysis of HST/STIS September 2011 observations
Vincent Bourrier, Alain Lecavelier des Etangs, Hélène Dupuy +8
Observations of transits of the hot giant exoplanet HD 189733b in the unresolved HI Lyman-alpha line show signs of hydrogen escaping the upper atmosphere of the planet. New resolve…
Temporal variations in the evaporating atmosphere of the exoplanet HD 189733b
A. Lecavelier des Etangs, V. Bourrier, P. J. Wheatley +8
Atmospheric escape has been detected from the exoplanet HD 209458b through transit observations of the hydrogen Lyman-alpha line. Here we present spectrally resolved Lyman-alpha tr…