Interpreting LOFAR 21-cm signal upper limits at z ≈ 9.1 in the context of high-z galaxy and reionization observations

  title={Interpreting LOFAR 21-cm signal upper limits at z ≈ 9.1 in the context of high-z galaxy and reionization observations},
  author={Bradley Greig and Andrei Mesinger and L{\'e}on V. E. Koopmans and Benedetta Ciardi and Garrelt Mellema and Saleem Zaroubi and Sambit K. Giri and Raghunath Ghara and Abhik Ghosh and Ilian T Iliev and F G Mertens and Rajesh Mondal and Andr{\'e} R. Offringa and Vishambhar N. Pandey},
  journal={Monthly Notices of the Royal Astronomical Society},
Using the latest upper limits on the 21-cm power spectrum at $z\approx9.1$ from the Low Frequency Array (LOFAR), we explore regions of parameter space which are inconsistent with the data. We use 21CMMC, a Monte Carlo Markov Chain sampler of 21cmFAST which directly forward models the 3D cosmic 21-cm signal in a fully Bayesian framework. We use the astrophysical parameterisation from 21cmFAST, which includes mass-dependent star formation rates and ionising escape fractions as well as soft-band X… Expand

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