Results 21 to 30 of about 35,861 (225)
Galaxies, 2021 NenuFAR, the New Extension in Nancay Upgrading LOFAR, is currently in its early science phase. It is in this context that the Cosmic Filaments and Magnetism Pilot Survey is observing sources with the array as it is still under construction—with 57 (56 ...
Etienne Bonnassieux +11 more
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Time resolution of cosmic noise observations with acorrelation experiment [PDF]
Annales Geophysicae, 2004 A radio wave correlation experiment using a Mills Cross technique can be used to observe the cosmic noise intensity from the ground for the purpose of determining the absorption in the ionosphere.
E. Nielsen, F. Honary, M. Grill
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Inherent and Local Magnetic Field Structures in Jets from Active Galactic Nuclei
Galaxies, 2021 In theoretical models for the electromagnetic launching of astrophysical jets, a helical magnetic (B)-field component is generated through the winding up of an initial longitudinal field component by the rotation of the cental black hole and accretion ...
Denise C. Gabuzda
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Japanese VLBI Network observations of radio-loud narrow-line Seyfert 1 galaxies [PDF]
, 2007 We performed phase-reference very long baseline interferometry (VLBI) observations on five radio-loud narrow-line Seyfert 1 galaxies (NLS1s) at 8.4 GHz with the Japanese VLBI Network (JVN).
Doi, Akihiro +22 more
core +2 more sources
Testing of the transionospheric radiochannel using data from the global GPS network
Annals of Geophysics, 2003 Using the international ground-based network of two-frequency receivers of the GPS navigation system provides a means of carrying out a global, continuous and fully-computerized monitoring of phase fluctuations of signals from satellite-borne ...
V. A. Karachenschev, E. L. Afraimovich
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Characterizing Pulsars Detected in the Rapid ASKAP Continuum Survey
The Astrophysical Journal, 2023 We present the detection of 661 known pulsars observed with the Australian SKA Pathfinder (ASKAP) telescope at 888 MHz as part of the Rapid ASKAP Continuum Survey (RACS).
Akash Anumarlapudi +18 more
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Galaxies, 2021 I offer a brief and personal history of the development of polarization sensitive observations with widely separated antennas. The story starts at Jodrell Bank in the late 1960s with a 24 km baseline radio linked (but not phase stable) interferometer and
John Wardle
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Compressed sensing for radio interferometric imaging: review and future direction [PDF]
, 2011 Radio interferometry is a powerful technique for astronomical imaging. The theory of Compressed Sensing (CS) has been applied recently to the ill-posed inverse problem of recovering images from the measurements taken by radio interferometric telescopes ...
McEwen, J. D., Wiaux, Y.
core +2 more sources
VHF Radio Interferometry of Lightning [PDF]
International Astronomical Union Colloquium, 1991 AbstractLightning discharges radiate strongly at radio frequencies, and studies of the radiation provide valuable information on lightning breakdown processes. Interferometric techniques can be used to locate the numerous radiation events as a function of time during a discharge and to generate images of the developing lightning channels inside a storm,
P.R. Krehbiel +4 more
openaire +1 more source
An Updated View of the Milky Way from Maser Astrometry
Universe, 2022 Astrometric observations of maser sources in the Milky Way, using the Very Long Baseline Interferometry (VLBI) technique, have been exploited to determine the spiral structure of our Galaxy. Several major spiral arms have now been pinpointed in the first
Katharina Immer, Kazi L. J. Rygl
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