...Universe (see https://room.eu.com/news/Using_gravitational_waves...). By a combination of either mergers or through accretion of gas onto the newly formed primordial stellar black hole, these processes offer a natural way in which to grow black holes...
... forming stars. If this is indeed the case, then it is surmised that Population III stars are composed entirely of primordial gas – hydrogen, helium and very small amounts of lithium and beryllium and is therefore pristine material left over...
... describes the time when a dense, obscuring fog of primordial gas spread throughout the Universe, started to cool down allowing ...detect electromagnetic radiation emitted by neutral hydrogen - the EoR gas that would later form the first stars. So far...
... years ago, SDSS J0104+1535 is also made of gas that consists of more than 99.99% hydrogen and helium. Brown...It was not previously known if brown dwarfs could form from such primordial gas, and the discovery is tantalising as it points the way to what...
... the periphery,” adds co-author Francesco Haardt, professor at the University of Insubria and INAF associate. “Consequently, the primordial gas of hydrogen and helium was enriched with heavier elements (oxygen, carbon, nitrogen) quickly in the center...