• Corpus ID: 253420468

Statistical recovery of 21cm visibilities and their power spectra with Gaussian constrained realisations and Gibbs sampling

@inproceedings{Kennedy2022StatisticalRO,
  title={Statistical recovery of 21cm visibilities and their power spectra with Gaussian constrained realisations and Gibbs sampling},
  author={Fraser Kennedy and Philip Bull and Michael J. Wilensky and Samir Choudhuri},
  year={2022}
}
Radio interferometers designed to probe the 21cm signal from Cosmic Dawn and the Epoch of Reionisation must contend with systematic effects that make it difficult to achieve sufficient dynamic range to separate the 21cm signal from foreground emission and other effects. For instance, the instrument’s chromatic response modulates the otherwise spectrally smooth foregrounds, making them difficult to model, while a significant fraction of the data must be excised due to the presence of radio… 

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Stochastic Processes: Theory for Applications

1. Introduction and review of probability 2. Poisson processes 3. Gaussian random vectors and processes 4. Finite-state Markov chains 5. Renewal processes 6. Countable-state Markov chains 7. Markov