activity
20152021
most citedImproved upper limits on the 21-cm signal power spectrum of neutral hydrogen at from LOFAR

311 citations · 744 across the 10 of their papers we have counts for

collaborators

18 papers

astro-ph.CO202111 cited

Exploring the Cosmic Dawn with NenuFAR

F. G. Mertens, B. Semelin, L. V. E. Koopmans

The exploration of the Cosmic Dawn, the period of the Universe during which the first stars and galaxies were formed, is one of the last frontiers of modern astronomy and cosmology…

astro-ph.HE2021

A detailed kinematic study of 3C 84 and its connection to Gamma-rays

Jeffrey A. Hodgson, Bindu Rani, Junghwan Oh +7

3C 84 (NGC 1275) is the bright radio core of the Perseus Cluster. Even in the absence of strong relativistic effects, the source has been detected at Gamma-rays up to TeV energies.…

astro-ph.CO20213 cited

21cm signal predictions at Cosmic Dawn and Reionization with coupled radiative-hydrodynamics

Nicolas J. F. Gillet, Dominique Aubert, Florent G. Mertens +1

The process of heating and reionization of the Universe at high redshift links small scale structures/galaxy formation and large scale inter-galactic medium properties. Even if the…

astro-ph.CO202059 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…

astro-ph.CO2020

The AARTFAAC Cosmic Explorer: observations of the 21-cm power spectrum in the EDGES absorption trough

B. K. Gehlot, F. G. Mertens, L. V. E. Koopmans +12

The 21-cm absorption feature reported by the EDGES collaboration is several times stronger than that predicted by traditional astrophysical models. If genuine, a deeper absorption…

astro-ph.CO2020

Interpreting LOFAR 21-cm signal upper limits at z~9.1 in the context of high-z galaxy and reionisation observations

Bradley Greig, Andrei Mesinger, Léon V. E. Koopmans +11

Using the latest upper limits on the 21-cm power spectrum at from the Low Frequency Array (LOFAR), we explore regions of parameter space which are inconsistent with t…