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Position-dependent power spectra of the 21-cm signal from the epoch of reionization
Sambit K. Giri, Anson D'Aloisio, Garrelt Mellema +3
The 21-cm signal from the epoch of reionization is non-Gaussian. Current radio telescopes are focused on detecting the 21-cm power spectrum, but in the future the Square Kilometre…
The 21cm bispectrum as a probe of non-Gaussianities due to X-ray heating
Catherine A. Watkinson, Sambit K. Giri, Hannah E. Ross +4
We present analysis of the normalised 21-cm bispectrum from fully-numerical simulations of intergalactic-medium heating by stellar sources and high-mass X-ray binaries (HMXB) durin…
Optimal identification of HII regions during reionization in 21-cm observations
Sambit K. Giri, Garrelt Mellema, Raghunath Ghara
The ability of the future low frequency component of the Square Kilometre Array radio telescope (SKA-Low) to produce tomographic images of the redshifted 21-cm signal will enable d…