507 citations · 8.4k across the 215 of their papers we have counts for
222 papers
Thermal activation rate of dilute axion stars close to the maximum mass
Pierre-Henri Chavanis
We compute the thermal activation rate of metastable self-gravitating Bose-Einstein condensates with attractive self-interaction (e.g., dilute axion stars) by using the instanton t…
Polytropes, logotropes, the universal value of the surface density of dark matter halos, and the value of the cosmological constant
Pierre-Henri Chavanis
We discuss the connection between logotropes and polytropes in astrophysics and cosmology. The logotropic equation of state may be seen as a degenerate form of the…
Energy Balance of a Boson Gas at Zero Temperature in Curved Spacetime
Jorge Meza-Domínguez, Tonatiuh Matos, Pierre-Henri Chavanis
We develop a comprehensive thermodynamic description for a zero-temperature boson gas in curved spacetime, integrating energy conservation with information-theoretic principles. Us…
Kinetic theory of two-dimensional point vortices at order and
Jean-Baptiste Fouvry, Pierre-Henri Chavanis
We investigate the long-term relaxation of a distribution of point vortices in two-dimensional hydrodynamics. To focus on the regime of weak collective amplification, we embed…
Thermodynamics of self-gravitating fermions as a robust theory for dark matter halos: Stability analysis applied to the Milky Way
A. Krut, C. R. Argüelles, P. -H. Chavanis
We present a framework for dark matter (DM) halo formation based on a kinetic theory of self-gravitating fermions together with a solid connection to thermodynamics. Based on maxim…
On the long-term evolution of razor-thin galactic discs: Balescu-Lenard prediction and perspectives
Mathieu Roule, Jean-Baptiste Fouvry, Christophe Pichon +1
In the last five decades, numerical simulations have provided invaluable insights into the evolution of galactic discs over cosmic times. As a complementary approach, developments…