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The LOFAR Tied-Array All-Sky Survey: Timing of 35 radio pulsars and an overview of the properties of the LOFAR pulsar discoveries
E. van der Wateren, C. G. Bassa, S. Cooper +20
The LOFAR Tied-Array All-Sky Survey (LOTAAS) is the most sensitive untargeted radio pulsar survey performed at low radio frequencies (119--151\,MHz) to date and has discovered 76 n…
Cospatial 21 cm and metal-line absorbers in the epoch of reionization -- I : Incidence and observability
Aniket Bhagwat, Benedetta Ciardi, Erik Zackrisson +1
Overdense, metal-rich regions, shielded from stellar radiation might remain neutral throughout reionization and produce metal as well as 21 cm absorption lines. Simultaneous absorp…
Assessing the impact of two independent direction-dependent calibration algorithms on the LOFAR 21-cm signal power spectrum
H. Gan, F. G. Mertens, L. V. E. Koopmans +11
Detecting the 21-cm signal from the Epoch of Reionisation (EoR) is challenging due to the strong astrophysical foregrounds, ionospheric effects, radio frequency interference and in…
Ionizing photon production and escape fractions during cosmic reionization in the TNG50 simulation
Ivan Kostyuk, Dylan Nelson, Benedetta Ciardi +2
In this work we investigate the dependence of the escape fraction of ionizing photons, , on various galaxy and host halo properties during the epoch of reionization. W…
Subarcsecond view on the high-redshift blazar GB 1508+5714 by the International LOFAR Telescope
A. Kappes, P. R. Burd, M. Kadler +14
Studies of the most distant AGNs allow us to test our current understanding of the physics present in radio-jetted AGNs across a range of environments. The decrease in apparent lum…
A CRASH simulation of the contribution of binary stars to the epoch of reionization
Qing-Bo Ma, Silvia Fiaschi, Benedetta Ciardi +2
We use a set of 3D radiative transfer simulations to study the effect that a large fraction of binary stars in galaxies during the epoch of reionization has on the physical propert…
Statistical analysis of the causes of excess variance in the 21 cm signal power spectra obtained with the Low-Frequency Array
H. Gan, L. V. E Koopmans, F. G. Mertens +11
The detection of the 21 cm signal of neutral hydrogen from the Epoch of Reionization (EoR) is challenging due to bright foreground sources, radio frequency interference (RFI), the…