H. J. A. Röttgering

TL;DR: Euclid as mentioned in this paper is a space-based survey mission from the European Space Agency designed to understand the origin of the universe's accelerating expansion, using cosmological probes to investigate the nature of dark energy, dark matter and gravity by tracking their observational signatures.

TL;DR: Euclid as discussed by the authors is a space-based survey mission from the European Space Agency designed to understand the origin of the universe's accelerating expansion, using cosmological probes to investigate the nature of dark energy, dark matter and gravity by tracking their observational signatures.

TL;DR: In this article, the authors presented the results of a large program conducted with the Very Large Telescope and augmented by observations with the Keck telescope to search for forming clusters of galaxies near powerful radio galaxies at 2.5 and 3.0 GHz.

TL;DR: In this article, the authors present a new calibration method that attempts to iteratively solve and correct for ionospheric phase errors by constructing a time-variant, 2-dimensional phase screen at a fixed height above the Earth's surface.

TL;DR: The LOw Frequency ARray (LOFAR) as mentioned in this paper is a radio interferometer operating in the lowest 4 octaves of the ionospheric "radio window": 10-240 MHz, that will greatly facilitate observing pulsars at low radio frequencies.