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Spectral analysis of spatially-resolved 3C295 (sub-arcsecond resolution) with the International LOFAR Telescope
Etienne Bonnassieux, Frits Sweijen, Marisa Brienza +11
3C295 is a bright, compact steep spectrum source with a well-studied integrated radio spectral energy distribution (SED) from 132 MHz to 15 GHz. However, spatially resolved spectra…
High-resolution imaging with the International LOFAR Telescope: Observations of the gravitational lenses MG 0751+2716 and CLASS B1600+434
Shruti Badole, Deepika Venkattu, Neal Jackson +7
We present Low-Frequency Array (LOFAR) telescope observations of the radio-loud gravitational lens systems MG 0751+2716 and CLASS B1600+434. These observations produce images at 30…
High-resolution international LOFAR observations of 4C~43.15 -- Spectral ages and injection indices in a high-z radio galaxy
Frits Sweijen, Leah K. Morabito, Jeremy Harwood +6
Radio sources with steep spectra are preferentially associated with the most distant galaxies, the relation, but the reason for this relation is an open question. The spatial…
Unmasking the history of 3C 293 with LOFAR sub-arcsecond imaging
Pranav Kukreti, Raffaella Morganti, Timothy W. Shimwell +10
Active galactic nuclei (AGNs) show episodic activity, evident in galaxies that exhibit restarted radio jets. These restarted jets can interact with their environment, leaving signa…
The resolved jet of 3C 273 at 150 MHz
Jeremy J. Harwood, Sean Mooney, Leah K. Morabito +6
Since its discovery in 1963, 3C273 has become one of the most widely studied quasars with investigations spanning the electromagnetic spectrum. While much has been discovered about…
Origin of the ring structures in Hercules A -- Sub-arcsecond 144 MHz to 7 GHz observations
R. Timmerman, R. J. van Weeren, J. R. Callingham +18
The prominent radio source Hercules A features complex structures in its radio lobes. Although it is one of the most comprehensively studied sources in the radio sky, the origin of…