187 citations · 1.2k across the 21 of their papers we have counts for
3 papers · 1 filter
Relating turbulent pressure and macroturbulence across the HR diagram with a possible link to γ-Dor stars
Luca Grassitelli, Luca Fossati, Norbert Langer +3
A significant fraction of the envelope of low- and intermediate-mass stars is unstable to convection, leading to sub-surface turbulent motion. Here, we consider and include the eff…
Observational consequences of turbulent pressure in the envelopes of massive stars
Luca Grassitelli, Luca Fossati, Sergio Simon-Diaz +3
The major mass fraction of the envelope of hot luminous stars is radiatively stable. However, the partial ionisation of hydrogen, helium and iron gives rise to extended sub-surface…
Massive main sequence stars evolving at the Eddington limit
Debashis Sanyal, Luca Grassitelli, Norbert Langer +1
The evolution of massive stars even on the main sequence is not yet well understood. Due to the steep mass-luminosity relation, massive main sequence stars become very luminous. Th…