I will outline some of the puzzles related to the connection between the first stars and the first galaxies in the light of new theoretical and observational (ALMA, JWST) findings.
We present new evolutionary models of primordial very massive stars, with initial masses ranging from 100 Msun to 1000 Msun, that extend from the main sequence until the onset of dynamical instability caused by the creation of electron-positron pairs during core C, Ne, or O burning, depending on the star's mass and metallicity.
Mass loss accounts for radiation-driven winds as well as...
Population III (Pop III) stars are almost metal-free stars, born from the primordial gas in the Universe. They have eluded any attempt of observation so far. Therefore, we must rely on predictions from the most advanced and detailed stellar evolutionary models to study them. The almost total absence of metals impacts their initial mass function distribution (predicted to be top-heavy), their...
