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20232026
most citedDeeper multi-redshift upper limits on the Epoch of Reionization 21-cm signal power spectrum from LOFAR between z=8.3 and z=10.1

27 citations · 54 across the 15 of their papers we have counts for

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Showing 2024Show all

6 papers · 1 filter

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★ 2 cited

Exploring the effect of different cosmologies on the Epoch of Reionization 21-cm signal with POLAR

Anshuman Acharya, Qing-bo Ma, Sambit K. Giri +8

A detection of the 21-cm signal power spectrum from the Epoch of Reionization is imminent, thanks to consistent advancements from telescopes such as LOFAR, MWA, and HERA, along wit…

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

Inferring IGM parameters from the redshifted 21-cm Power Spectrum using Artificial Neural Networks

Madhurima Choudhury, Raghunath Ghara, Saleem Zaroubi +8

The high redshift 21-cm signal promises to be a crucial probe of the state of the intergalactic medium (IGM). Understanding the connection between the observed 21-cm power spectrum…

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.IM2024★ 2 cited

Spectral fit residuals as an indicator to increase model complexity

Anshuman Acharya, Vinay L. Kashyap

Spectral fitting of X-ray data usually involves minimizing statistics like the chi-square and the Cash statistic. Here we discuss their limitations and introduce two measures based…