The nature of the first Pop III stars is still a mystery and the energy distribution of the first
supernovae is completely unexplored. For the first time we account simultaneously for the …

The characteristic mass that sets the peak of the stellar initial mass function (IMF) is closely
linked to the thermodynamic behaviour of interstellar gas, which controls how gas fragments …

The first stars were born from chemically pristine gas. They were likely massive, and thus
they rapidly exploded as supernovae, enriching the surrounding gas with the first heavy …

The metal-poor stars in the Galactic halo are thought to show the imprints of the first (Pop III)
stars, and thus provide a glance at the first episodes of star formation. In this work, we aim at …

We use Gaia DR2 astrometric and photometric data, published radial velocities and mesa
models to infer distances, orbits, surface gravities, and effective temperatures for all ultra …

Although true metal-free" Population III" stars have so far escaped discovery, their nature,
and that of their supernovae, is revealed in the chemical products left behind in the next …

We present and discuss the results of a search for extremely metal-poor stars based on
photometry from data release DR1. 1 of the SkyMapper imaging survey of the southern sky …

The non-detection of zero-metallicity stars in ultra-faint dwarf galaxies (UFDs) can be used to
constrain the initial mass function (IMF) of the first (PopIII) stars by means of a statistical …

We present the evolution and the explosion of two massive stars, 15 and 25 M⊙, spanning a
wide range of initial rotation velocities (from 0 to 800 km s− 1) and three initial metallicities …

Carbon-enhanced metal-poor (CEMP) stars comprise a high percentage of stars at the
lowest metallicities. The stars in the CEMP-no subcategory do not show any s-process …