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Articles tagged: primordial gas

  • DCBH, direct-collapse black holes, primordial black holes, primordial gas 30 March 2016 Have astronomers found the signatures of the very first black holes formed through the collapse of gas clouds?

    ...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...

    • DCBH
    • direct-collapse black holes
    • primordial black holes
    • primordial gas
  • aLIGO, gravitational waves, Population I stars, Population II stars, Population III stars 21 March 2016 Using gravitational waves to search for Population III stars

    ... 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...

    • aLIGO
    • gravitational waves
    • Population I stars
    • Population II stars
    • Population III stars
  • Dark-ages Reionisation And Galaxy Observables from Numerical Simulations (DRAGONS) programme, epoch of Reionisation, hydrogen, Murchison Widefield Array (MWA) 09 September 2019 Ancient light helps to unravel cosmic "dark age"

    ... 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...

    • Dark-ages Reionisation And Galaxy Observables from Numerical Simulations (DRAGONS) programme
    • epoch of Reionisation
    • hydrogen
    • Murchison Widefield Array (MWA)
  • Brown Dwarf, European Southern Observatory's Very Large Telescope (VLT), metal-poor, SDSS J0104+1535, Visible and Infrared Survey Telescope for Astronomy (VISTA) 27 March 2017 Most massive and 'purest' brown dwarf found

    ... 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...

    • Brown Dwarf
    • European Southern Observatory's Very Large Telescope (VLT)
    • metal-poor
    • SDSS J0104+1535
    • Visible and Infrared Survey Telescope for Astronomy (VISTA)
  • life on Earth, Life on other planets, Milky Way 08 March 2021 New study determines best place and time to live in the Milky Way

    ... 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...

    • life on Earth
    • Life on other planets
    • Milky Way

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