activity
20202026
most citedComparing Foreground Removal Techniques for Recovery of the LOFAR-EoR 21cm Power Spectrum

59 citations · 71 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.CO2026

Impact of 21-cm foreground mitigation strategies on reionization power spectrum constraints

Sambit K. Giri, Florent Mertens

The 21-cm signal probes the intergalactic medium during the Epoch of Reionization (EoR) but is overwhelmed by astrophysical foregrounds orders of magnitude stronger than the cosmol…

astro-ph.CO2026

Foreground Characterization and Mitigation in the Observations of the CD/EoR with the SKA

Philip Bull, Jacob Burba, Emilio Ceccotti +20

The Square Kilometre Array (SKA), with its unprecedented sensitivity, frequency coverage, and large collecting area, is poised to revolutionize our understanding of the Cosmic Dawn…

astro-ph.CO2026

Overview of 21cm Experiments at high redshift with SKAO

CD Science Working Group, Gianni Bernardi, Daniela Breitman +81

We provide an overview of the eight SKAO Science Book chapters that motivate the Epoch of Reionisation and Cosmic Dawn experiments with SKA-Low. We describe the individual SKA-Low…

astro-ph.IM2026

Observations of the Cosmic Dawn and Epoch of Reionization with the SKAO: Observational Lessons Learned from Precursors and Pathfinder Instruments

Eloy de Lera Acedo, James Aguirre, Dominic Anstey +34

This chapter summarizes the observational lessons learned after two decades of observations of the Cosmic Dawn (CD) and Epoch of Reionization (EoR) with SKAO pathfinders and precur…

astro-ph.IM2024★ 2 cited

Extracting the Epoch of Reionization Signal with 3D U-Net Neural Networks Using Data-driven Systematic Effect Model

Li-Yang Gao, Léon V. E. Koopmans, Florent G. Mertens +11

Neutral hydrogen (HI) serves as a crucial probe for the Cosmic Dawn and the Epoch of Reionization (EoR). Actual observations of the 21-cm signal often encounter challenges such as…

astro-ph.CO2024

Revised LOFAR upper limits on the 21-cm signal power spectrum at using Machine Learning and Gaussian Process Regression

Anshuman Acharya, Florent Mertens, Benedetta Ciardi +3

The use of Gaussian Process Regression (GPR) for foregrounds mitigation in data collected by the LOw-Frequency ARray (LOFAR) to measure the high-redshift 21-cm signal power spectru…

astro-ph.CO2024★ 10 cited

Probing the intergalactic medium during the Epoch of Reionization using 21-cm signal power spectra

Raghunath Ghara, Abinash Kumar Shaw, Saleem Zaroubi +9

The redshifted 21-cm signal from the epoch of reionization (EoR) directly probes the ionization and thermal states of the intergalactic medium during that period. In particular, th…

astro-ph.CO2020★ 59 cited

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…