4 papers
The slope of the power spectrum of the density field in isothermal supersonic compressible turbulence
Pierre Dumond, Jérémy Fensch, Gilles Chabrier +1
The power spectrum (PS) of the density field in supersonic turbulence is a fundamental quantity that characterizes the statistical properties of the structures formed in compressib…
Do tides play a role in the determination of the pre-stellar core mass function?
Pierre Dumond, Gilles Chabrier
Recent studies have examined the role of tides in the star formation process. They suggest, notably, that the tides determine the characteristic mass of the stellar initial mass fu…
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…
Impact of the shape of the prestellar density fluctuations on the core mass function
Pierre Dumond, Gilles Chabrier
It is well known that departure from sphericity in the geometry of primordial dark matter halos modifies their mass function. The ellipsoidal collapse model yields a better agreeme…