311 citations · 723 across the 6 of their papers we have counts for
17 papers
Decaying Dark Matter: Simulations and Weak-Lensing Forecast
Jonathan Hubert, Aurel Schneider, Doug Potter +2
Despite evidence for the existence of dark matter (DM) from very high and low redshifts, a moderate amount of DM particle decay remains a valid possibility. This includes both mode…
Constraining the state of the intergalactic medium during the Epoch of Reionization using MWA 21-cm signal observations
Raghunath Ghara, Sambit K. Giri, Benedetta Ciardi +2
The Murchison Widefield Array (MWA) team has derived new upper limits on the spherically averaged power spectrum of the 21-cm signal at six redshifts in the range $z \approx 6.5-8.…
Deep learning approach for identification of HII regions during reionization in 21-cm observations
Michele Bianco, Sambit. K. Giri, Ilian T. Iliev +1
The upcoming Square Kilometre Array (SKA-Low) will map the distribution of neutral hydrogen during reionization, and produce a tremendous amount of 3D tomographic data. These image…
Measuring the topology of reionization with Betti numbers
Sambit K. Giri, Garrelt Mellema
The distribution of ionised hydrogen during the epoch of reionization (EoR) has a complex morphology. We propose to measure the three-dimensional topology of ionised regions using…
Redshift-space distortions in simulations of the 21-cm signal from the cosmic dawn
Hannah E. Ross, Sambit K. Giri, Keri L. Dixon +3
The 21-cm signal from the Cosmic Dawn (CD) is likely to contain large fluctuations, with the most extreme astrophysical models on the verge of being ruled out by observations from…
Comparing Foreground Removal Techniques for Recovery of the LOFAR-EoR 21cm Power Spectrum
Ian Hothi, Emma Chapman, Jonathan R. Pritchard +10
We compare various foreground removal techniques that are being utilised to remove bright foregrounds in various experiments aiming to detect the redshifted 21cm signal of neutral…