654 citations · 3.4k across the 55 of their papers we have counts for
5 papers · 1 filter
The widest-frequency radio relic spectra: observations from 150 MHz to 30 GHz
Andra Stroe, Timothy Shimwell, Clare Rumsey +9
Radio relics are patches of diffuse synchrotron radio emission that trace shock waves. Relics are thought to form when intra-cluster medium electrons are accelerated by cluster mer…
AGN duty cycle estimates for the ultra-steep spectrum radio relic VLSS J1431.8+1331
A. Shulevski, R. Morganti, P. D. Barthel +19
Steep spectrum radio sources associated with active galactic nuclei (AGN) may contain remnants of past AGN activity episodes. Novel instruments like the LOw Frequency ARray (LOFAR)…
Spectral ageing in the lobes of cluster-centre FR-II radio galaxies
Jeremy Harwood, Martin Hardcastle, Judith Croston
Recent investigations have shown that many parameters and assumptions made in the application of spectral ageing models to FR-II radio galaxies (e.g. injection index, uniform magne…
The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results
G. H. Heald, R. F. Pizzo, E. Orrú +147
We present the Multifrequency Snapshot Sky Survey (MSSS), the first northern-sky LOFAR imaging survey. In this introductory paper, we first describe in detail the motivation and de…
LOFAR discovery of a 700-kpc remnant radio galaxy at low redshift
M. Brienza, L. Godfrey, R. Morganti +13
Remnant radio galaxies represent the final dying phase of radio galaxy evolution, in which the jets are no longer active. Due to their rarity in flux limited samples and the diffic…