The central radio source in M87 provides the best opportunity to study jet formation because
it has a large angular size for the gravitational radius of the black hole and has a bright jet …

This second edition of The Illustrated Wavelet Transform Handbook: Introductory Theory and
Applications in Science, Engineering, Medicine and Finance has been fully updated and …

Context. Very long baseline interferometry (VLBI) imaging of radio emission from
extragalactic jets provides a unique probe of physical mechanisms governing the launching …

We study the kinematics of the M87 jet using the first-year data of the KVN and VERA Array
(KaVA) large program, which has densely monitored the jet at 22 and 43 GHz since 2016 …

It has now become clear that the radio jet in the giant elliptical galaxy M87 must turn on very
close to the black hole. This implies the efficient acceleration of leptons within the jet at …

Context. Very long baseline interferometry (VLBI) is a radio-astronomical technique whereby
the correlated signal from various baselines is combined into an image of the highest …

We study the collimation and acceleration of jets in the nearby giant radio galaxy NGC 315,
using multifrequency Very Long Baseline Array observations and archival High Sensitivity …

Total intensity variability light curves offer a unique insight into the ongoing debate about the
launching mechanism of jets. For this work, we utilised the availability of radio and γ-ray light …

We report the initial results of our high-cadence monitoring program on the radio jet in the
active galaxy M 87, obtained by the KVN and VERA Array (KaVA) at 22 GHz. This is a pilot …

Context. Reconstructing images from very long baseline interferometry (VLBI) data with a
sparse sampling of the Fourier domain (uv-coverage) constitutes an ill-posed deconvolution …