31 citations · 76 across the 7 of their papers we have counts for
7 papers
Tracing the Cosmic Origins: Machine Learning Reconstruction of the Primordial Density Field from EoR Observations
Anchal Saxena, P. Daniel Meerburg, Guochao Sun +2
Reconstructing the initial conditions of the Universe from late-time tracers would unlock cosmological information buried by non-linear structure formation and astrophysics. We rec…
Optimisation of calibration sources for global 21-cm experiments: the REACH case
Adarsh Kumar Dash, Dominic Anstey, Harry T. J. Bevins +41
The spin-flip 21-cm signal from the Cosmic Dawn and the Epoch of Reionization is an essential probe of the conditions that led to the formation of the first luminous objects in the…
Circuit Modeling for In Situ 21 cm Radiometer Calibration
Gary Vincent Charles Allen, Saurabh Pegwal, Dirk de Villiers +42
Recent experiments in cosmology, particularly those aimed at detecting the faint, redshifted, global 21 cm hydrogen line (depth < ~200 mK, z > 7.5), have imposed stringent new requ…
Simulation-Based Inference of the sky-averaged 21-cm signal from CD-EoR with REACH
Anchal Saxena, P. Daniel Meerburg, Christoph Weniger +2
The redshifted 21-cm signal from the Cosmic Dawn and Epoch of Reionization carries invaluable information about the cosmology and astrophysics of the early Universe. Analyzing data…
Constraining the X-ray heating and reionization using 21-cm power spectra with Marginal Neural Ratio Estimation
Anchal Saxena, Alex Cole, Simon Gazagnes +3
Cosmic Dawn (CD) and Epoch of Reionization (EoR) are epochs of the Universe which host invaluable information about the cosmology and astrophysics of X-ray heating and hydrogen rei…
Sky-averaged 21-cm signal extraction using multiple antennas with an SVD framework: the REACH case
Anchal Saxena, P. Daniel Meerburg, Eloy de Lera Acedo +2
In a sky-averaged 21-cm signal experiment, the uncertainty on the extracted signal depends mainly on the covariance between the foreground and 21-cm signal models. In this paper, w…
Impact of dark matter models on the EoR 21-cm signal bispectrum
Anchal Saxena, Suman Majumdar, Mohd Kamran +1
The nature of dark matter sets the timeline for the formation of first collapsed halos and thus affects the sources of reionization. Here, we consider two different models of dark…