507 citations · 8.4k across the 215 of their papers we have counts for
Showing 2026Show all
3 papers · 1 filter
astro-ph.CO2026
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…
gr-qc2026
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…
gr-qc2026
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…