The redshifted 21 cm signal from neutral hydrogen is a direct probe of the physics of the
early universe and has been an important science driver of many present and upcoming …

Context. To date, only 69 pulsars have been identified with a detected pulsed radio emission
below 100 MHz. A LOFAR-core LBA census and a dedicated campaign with the Nançay …

Context. With the advent of multi-wavelength electromagnetic observations of neutron stars–
spanning many decades in photon energies–from radio wavelengths up to X-rays and γ …

We present the results from the low-frequency (40–78 MHz) extension of the first pulsar
census of non-recycled pulsars carried out with the LOw-Frequency ARray (LOFAR). We …

Our understanding of the universe relies mostly on electromagnetism. As photons are the
messengers, fundamental physics is concerned in testing their properties. Photon mass …

The recently developed new generation, low-frequency Giant Ukrainian Radio Telescope
(GURT) is built nearby the well-known Ukrainian T-shaped Radio Telescope. The new …

NenuFAR is a new, large low-frequency radio telescope, in construction and commissioning
at the Nançay Radioastronomy Observatory, that starts to provide high sensitivity …

In radio astronomy, accurate calibration is of crucial importance for the new generation of
radio interferometers. More specifically, because of the potential presence of outliers which …

In this paper, we address the antenna array design problem at low signal-to-noise ratio
(SNR). The Cramér-Rao bound (CRB) is the most commonly used criterion to solve the array …

Context. The magnetized solar system planets are strong radio emitters and theoretical
studies suggest that the radio emission from nearby exoplanets in close-in orbits could …