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Kavli Institute for Cosmology, Cambridge



My research interests are primarily in using the hydrogen 21cm line to observe the early universe, particularly the first stars and Epoch of Reionisation. I am also interested in Bayesian statistics and data analysis methods. I have been developing a Bayesian data analysis pipeline for the REACH experiment, which aims at a joint fit of the cosmological 21cm sky-averaged signal, the foregrounds and the instrument itself using physics-rooted models, measurements and simulations. I also work on simulations to identify the impact of systematic errors in the Square Kilometre Array on the ability to detect the 21cm signal.


Key publications: 
  • D. Anstey et al., "Use of time dependent data in Bayesian global 21-cm foreground and signal modelling" (arXiv:2210.04707)
  • E. de Lera Acedo et al., "The REACH radiometer for detecting the 21-cm hydrogen signal from redshift 7.5 to 28" (arXiv:2210.07409)
  • D. Anstey et al., "Informing antenna design for sky-averaged 21-cm experiments using a simulated Bayesian data analysis pipeline" (arXiv:2106.10193)
  • D. Anstey et al., "A general Bayesian framework for foreground modelling and chromaticity correction for global 21 cm experiments" (arXiv:2010.09644)
Other publications: