3 papers
astro-ph.SR2026
Wave-Driven Mixing Enhanced by Rotation in Red Giant Branch Stars
Simon Blouin, Paul R. Woodward, Pavel A. Denissenkov +2
Stars like our Sun expand as they exhaust their core hydrogen fuel, becoming red giants that eventually reach sizes up to 100 times their original radius. These giants have long pr…
astro-ph.SR2026
3D hydrodynamic simulations of massive main-sequence stars -- IV. Internal gravity waves matter for SLF variability
Praneet Pathak, Simon Blouin, Falk Herwig +1
The power spectrum of light curves from satellites like CoRoT and TESS of massive main-sequence stars show stochastic low-frequency (SLF) variability. To investigate the origin of…
astro-ph.SR2025
Quantifying systematic uncertainties in white dwarf cooling age determinations
Praneet Pathak, Simon Blouin, Falk Herwig
Cooling ages of white dwarfs are routinely determined by mapping effective temperatures and masses to ages using evolutionary models. Typically, the reported uncertainties on cooli…