54 citations · 156 across the 9 of their papers we have counts for
9 papers
A mass invariant in a compressible turbulent medium
Pierre Dumond, Jérémy Fensch, Gilles Chabrier +1
Predicting the measurable statistical properties of density fluctuations in a supersonic compressible turbulent flow is a major challenge in physics. In 1951, Chandrasekhar derived…
Statistical properties and correlation length in star-forming molecular clouds: II. Gravitational potential and virial parameter
Etienne Jaupart, Gilles Chabrier
In the first article of this series, we have used the ergodic theory to assess the validity of a statistical approach to characterize various properties of star-forming molecular c…
Statistical properties and correlation length in star-forming molecular clouds: I. Formalism and application to observations
Etienne Jaupart, Gilles Chabrier
The proper characterization of the general statistical behavior of these fluctuations, from a limited sample of observations or simulations, is of prime importance to understand th…
Generalised transport equation of the Autocovariance Function of the density field and mass invariant in star-forming clouds
Etienne Jaupart, Gilles Chabrier
In this Letter, we study the evolution of the autocovariance function (ACF) of density field fluctuations in star-forming clouds and thus of the correlation length of thes…
Evolution of the density PDF in star forming clouds: the role of gravity
Etienne Jaupart, Gilles Chabrier
We derive an analytical theory of the PDF of density fluctuations in supersonic turbulence in the presence of gravity in star-forming clouds. The theory is based on a rigorous deri…
Channels for streaming instability in dusty discs
Etienne Jaupart, Guillaume Laibe
Streaming instability is a privileged channel to bridge the gap between collisional growth of dust grains and planetesimal formation triggered by gravity. This instability is thoug…
The Acceleration of Superrotation in Simulated Hot Jupiter Atmospheres
Florian Debras, Nathan Mayne, Isabelle Baraffe +5
Context. Atmospheric superrotating flows at the equator are an almost ubiquitous result of simulations of hot Jupiters, and a theory explaining how this zonally coherent flow reach…
The Limits of the Primitive Equations of Dynamics for Warm, Slowly Rotating Small Neptunes and Super Earths
N. J. Mayne, B. Drummond, F. Debras +5
We present significant differences in the simulated atmospheric flow for warm, tidally-locked small Neptunes and super Earths (based on a nominal GJ 1214b) when solving the simplif…
Contribution of the Galactic center to the local cosmic-ray flux
Etienne Jaupart, Etienne Parizot, Denis Allard
Context. Recent observations of unexpected structures in the Galactic Cosmic Ray (GCR) spectrum and composition, as well as growing evidence for episodes of intense dynamical activ…