154 citations · 367 across the 9 of their papers we have counts for
10 papers
Preserving your skies since 1988 -- Committee on Radio Astronomy Frequencies (CRAF) -- Periodic Review 2011-2021
Committee on Radio Astronomy Frequencies, Benjamin Winkel, Simon Garrington +43
The Committee on Radio Astronomy Frequencies (CRAF) is an Expert Committee of the European Science Foundation. It aims to provide a cost-effective single voice on frequency protect…
A ring-like accretion structure in M87 connecting its black hole and jet
Ru-Sen Lu, Keiichi Asada, Thomas P. Krichbaum +118
The nearby radio galaxy M87 is a prime target for studying black hole accretion and jet formation^{1,2}. Event Horizon Telescope observations of M87 in 2017, at a wavelength of 1.3…
A monitoring campaign (2013-2020) of ESA's Mars Express to study interplanetary plasma scintillation
P. Kummamuru, G. Molera Calvés, G. Cimò +19
The radio signal transmitted by the Mars Express (MEX) spacecraft was observed regularly between the years 2013-2020 at X-band (8.42 GHz) using the European Very Long Baseline Inte…
The jet collimation profile at high resolution in BL Lacertae
C. Casadio, N. R. MacDonald, B. Boccardi +14
Controversial studies on the jet collimation profile of BL Lacertae (BL Lac), the eponymous blazar of BL Lac objects class, complicate the scenario in this already puzzling class o…
The Solar Radius at 37 GHz through Cycles 22 to 24
Caius L. Selhorst, Juha Kallunki, C. G. Giménez de Castro +2
To better understand the influence of the activity cycle on the solar atmosphere, we report the time variation of the radius observed at 37 GHz (=8.1 mm) obtained by the Metsäho…
The magnetic field structure in CTA 102 from high resolution mm-VLBI observations during the flaring state in 2016-2017
Carolina Casadio, Alan P. Marscher, Svetlana G. Jorstad +14
Investigating the magnetic field structure in the innermost regions of relativistic jets is fundamental to shed light on the crucial physical processes giving rise to the jet forma…
Location of Gamma-ray emission and magnetic field strengths in OJ 287
J. A. Hodgson, T. P. Krichbaum, A. P. Marscher +19
The Gamma-ray BL Lac object OJ 287 is known to exhibit inner-parsec "jet-wobbling", high degrees of variability at all wavelengths and quasi-stationary features including an appare…
Planetary Radio Interferometry and Doppler Experiment (PRIDE) technique: A test case of the Mars Express Phobos fly-by
Dmitry A. Duev, Sergei V. Pogrebenko, Giuseppe Cimò +33
The closest ever fly-by of the Martian moon Phobos, performed by the European Space Agency's Mars Express spacecraft, gives a unique opportunity to sharpen and test the Planetary R…
Using software spectrometer to ensure VLBI signal chain reliability
Minttu Uunila, Juha Kallunki, Guifré Molera Calvés
Software spectrometer (SWSpec) developed for spacecraft tracking can be used to assure VLBI signal chain reliability, and phase stability of a VLBI receiver. Testing performed with…
Observations and analysis of phase scintillation of spacecraft signal on the interplanetary plasma
G. Molera Calvés, S. V. Pogrebenko, G. Cimò +13
Aims. The phase scintillation of the European Space Agency's (ESA) Venus Express (VEX) spacecraft telemetry signal was observed at X-band (λ= 3.6 cm) with a number of radio telesco…