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20112025
most citedImproved upper limits on the 21-cm signal power spectrum of neutral hydrogen at from LOFAR

311 citations · 1.8k across the 22 of their papers we have counts for

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astro-ph.CO2020★ 311 cited

Improved upper limits on the 21-cm signal power spectrum of neutral hydrogen at from LOFAR

F. G. Mertens, M. Mevius, L. V. E Koopmans +23

A new upper limit on the 21-cm signal power spectrum at a redshift of is presented, based on 141 hours of data obtained with the Low-Frequency Array (LOFAR). The an…

astro-ph.CO2020★ 109 cited

Constraining the intergalactic medium at 9.1 using LOFAR Epoch of Reionization observations

R. Ghara, S. K. Giri, G. Mellema +19

We derive constraints on the thermal and ionization states of the intergalactic medium (IGM) at redshift 9.1 using new upper limits on the 21-cm power spectrum measured b…

astro-ph.CO2017★ 290 cited

Upper limits on the 21-cm Epoch of Reionization power spectrum from one night with LOFAR

A. H. Patil, S. Yatawatta, L. V. E. Koopmans +25

We present the first limits on the Epoch of Reionization (EoR) 21-cm HI power spectra, in the redshift range , using the Low-Frequency Array (LOFAR) High-Band Antenna (…

astro-ph.CO2015★ 20 cited

Simulating the 21cm forest detectable with LOFAR and SKA in the spectra of high-z GRBs

B. Ciardi, S. Inoue, F. B. Abdalla +26

We investigate the feasibility of detecting 21cm absorption features in the afterglow spectra of high redshift long Gamma Ray Bursts (GRBs). This is done employing simulations of c…

astro-ph.CO2015★ 2 cited

Polarization leakage in Epoch of Reionization windows: I. LOFAR observations of the 3C196 field

K. M. B. Asad, L. V. E. Koopmans, V. Jelić +25

Detection of the 21-cm signal coming from the epoch of reionization (EoR) is challenging especially because, even after removing the foregrounds, the residual Stokes maps conta…

astro-ph.CO2014★ 61 cited

Constraining the epoch of reionization with the variance statistic: simulations of the LOFAR case

Ajinkya H. Patil, Saleem Zaroubi, Emma Chapman +27

Several experiments are underway to detect the cosmic redshifted 21-cm signal from neutral hydrogen from the Epoch of Reionization (EoR). Due to their very low signal-to-noise rati…

astro-ph.CO2011★ 24 cited

Discovery of the correspondence between intra-cluster radio emission and a high pressure region detected through the Sunyaev-Zel'dovich effect

C. Ferrari, H. T. Intema, E. Orrù +9

We analyzed new 237 MHz and 614 MHz GMRT data of the most X-ray luminous galaxy cluster, RX J1347-1145. Our radio results are compared with the MUSTANG 90 GHz Sunyaev-Zel'dovich ef…