181 citations · 2.3k across the 90 of their papers we have counts for
9 papers · 1 filter
LOFAR Deep Fields: Probing a broader population of polarized radio galaxies in ELAIS-N1
N. Herrera Ruiz, S. P. O'Sullivan, V. Vacca +19
We present deep polarimetric observations of the European Large Area ISO Survey-North 1 (ELAIS-N1) field using the Low Frequency Array (LOFAR) at 114.9-177.4 MHz. The ELAIS-N1 fiel…
A perfect power-law spectrum even at highest frequencies: The Toothbrush relic
K. Rajpurohit, F. Vazza, M. Hoeft +12
Radio relics trace shock fronts generated in the intracluster medium (ICM) during cluster mergers. The particle acceleration mechanism at the shock fronts is not yet completely und…
Spectro-polarimetric observations of the CIZA J2242.8+5301 northern radio relic: no evidence of high-frequency steepening
Francesca Loi, Matteo Murgia, Valentina Vacca +16
Observations of radio relics at very high frequency (>10 GHz) can help to understand how particles age and are (re-)accelerated in galaxy cluster outskirts and how magnetic fields…
Low(er) frequency follow-up of 28 candidate, large-scale synchrotron sources
Torrance Hodgson, Melanie Johnston-Hollitt, Benajmin McKinley +2
We follow up on a report by Vacca et al. (2018) of 28 candidate large-scale diffuse synchrotron sources in an 8°8° area of the sky (centred at RA 5h0m0s Dec 5°48'0''). Thes…
Diffuse Radio Sources in a Statistically Complete Sample of High Redshift Galaxy Clusters
G. Giovannini, M. Cau, A. Bonafede +9
Non-thermal properties of galaxy clusters have been studied with detailed and deep radio images in comparison with X-ray data. While much progress has been made, most of the studie…
Magnetism Science with the Square Kilometre Array
George Heald, Sui Ann Mao, Valentina Vacca +41
The Square Kilometre Array (SKA) will answer fundamental questions about the origin, evolution, properties, and influence of magnetic fields throughout the Universe. Magnetic field…
The LOFAR view of intergalactic magnetic fields with giant radio galaxies
C. Stuardi, S. P. O'Sullivan, A. Bonafede +8
Giant radio galaxies (GRGs) are physically large radio sources that extend well beyond their host galaxy environment. Their polarization properties are affected by the poorly const…
Collimated synchrotron threads linking the radio lobes of ESO137-006
M. Ramatsoku, M. Murgia, V. Vacca +14
We present MeerKAT 1000 MHz and 1400 MHz observations of a bright radio galaxy in the southern hemisphere, ESO~137-006. The galaxy lies at the centre of the massive and merging Nor…
New constraints on the magnetization of the cosmic web using LOFAR Faraday rotation observations
S. P. O'Sullivan, M. Brüggen, F. Vazza +11
Measuring the properties of extragalactic magnetic fields through the effect of Faraday rotation provides a means to understand the origin and evolution of cosmic magnetism. Here w…