A Census of the LyC Photons that Form the UV Background During Reionization

31 May 2018 Katz Harley Kimm Taysun Haehnelt Martin Sijacki Debora Rosdahl Joakim Blaizot Jeremy

We present a new, on-the-fly photon flux and absorption tracer algorithm designed to directly measure the contribution of different source populations to the metagalactic UV background and to the ionisation fraction of gas in the Universe. We use a suite of multifrequency radiation hydrodynamics simulations that are carefully calibrated to reproduce a realistic reionization history and galaxy properties at $z \ge 6$, to disentangle the contribution of photons emitted by different mass haloes and by stars with different metallicities and ages to the UV background during reionization... (read more)

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Categories


  • COSMOLOGY AND NONGALACTIC ASTROPHYSICS
  • ASTROPHYSICS OF GALAXIES