E. Osinga
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View article: Discovery of Diffuse Radio Emission in a Massive <i>z</i> = 1.709 Cool Core Cluster: A Candidate Radio Minihalo
Discovery of Diffuse Radio Emission in a Massive <i>z</i> = 1.709 Cool Core Cluster: A Candidate Radio Minihalo Open
Clusters of galaxies host spectacular diffuse radio sources, extending over scales from 100 kpc to several Mpcs. These sources, with extremely faint surface brightness ( μ Jy/arcsec 2 level), are not tied to individual galaxies but trace s…
View article: The phase-space of tailed radio galaxies in massive clusters
The phase-space of tailed radio galaxies in massive clusters Open
The radio jets of radio galaxies in galaxy clusters are often bent due to the ram pressure of the intracluster medium. Most studies of bent radio tails initially identified tailed sources and then attempted to characterise their environmen…
View article: Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655
Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655 Open
Some galaxy clusters contain non-thermal synchrotron emitting plasma that permeate the intracluster medium (ICM). The spectral properties of this radio emission are not well characterised at decametre wavelengths ( ν < 30 MHz), primarily d…
View article: Probing cluster magnetism with embedded and background radio sources in Planck clusters
Probing cluster magnetism with embedded and background radio sources in Planck clusters Open
Magnetic fields remain an elusive part of the content of galaxy clusters. Faraday rotation and depolarisation of extragalactic radio sources are useful probes, but the limited availability of polarised radio sources necessitates the stacki…
View article: Barriers and Facilitators for Bringing Model‐Informed Precision Dosing to the Patient's Bedside: A Systematic Review
Barriers and Facilitators for Bringing Model‐Informed Precision Dosing to the Patient's Bedside: A Systematic Review Open
Model‐informed precision dosing (MIPD) utilizes mathematical models to predict optimal medication doses for a specific patient or patient population. However, the factors influencing the implementation of MIPD have not been fully elucidate…
View article: Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655
Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655 Open
Some galaxy clusters contain non-thermal synchrotron emitting plasma permeating the intracluster medium (ICM). The spectral properties of this radio emission are not well characterized at decameter wavelengths (ν < 30 MHz), primarily due t…
View article: Probing the magnetized gas distribution in galaxy groups and the cosmic web with POSSUM Faraday rotation measures
Probing the magnetized gas distribution in galaxy groups and the cosmic web with POSSUM Faraday rotation measures Open
We present initial results from the Polarization Sky Survey of the Universe’s Magnetism (POSSUM), analysing 22 817 Faraday rotation measures (RMs) with median uncertainties of 1.2 rad m$^{-2}$ across 1520 deg2 to study magnetized gas assoc…
View article: Probing the Magnetised Gas Distribution in Galaxy Groups and the Cosmic Web with POSSUM Faraday Rotation Measures
Probing the Magnetised Gas Distribution in Galaxy Groups and the Cosmic Web with POSSUM Faraday Rotation Measures Open
We present initial results from the Polarisation Sky Survey of the Universe's Magnetism (POSSUM), analysing 22,817 Faraday Rotation Measures (RMs) with median uncertainties of 1.2 rad m^-2 across 1,520 square degrees to study magnetised ga…
View article: Probing particle acceleration in Abell 2256: From 16 MHz to gamma rays
Probing particle acceleration in Abell 2256: From 16 MHz to gamma rays Open
Merging galaxy clusters often host spectacular diffuse radio synchrotron sources. These sources can be explained by a non-thermal pool of relativistic electrons that are accelerated by shocks and turbulence in the intracluster medium. The …
View article: Probing particle acceleration in Abell 2256: from to 16 MHz to gamma rays
Probing particle acceleration in Abell 2256: from to 16 MHz to gamma rays Open
Merging galaxy clusters often host spectacular diffuse radio synchrotron sources. These sources can be explained by a non-thermal pool of relativistic electrons accelerated by shocks and turbulence in the intracluster medium. The origin of…
View article: The LOFAR Two-Metre Sky Survey
The LOFAR Two-Metre Sky Survey Open
The second data release of the LOFAR Two-Metre Sky Survey (LoTSS) covers 27% of the northern sky, with a total area of ~5700 deg 1 . The high angular resolution of LOFAR with Dutch baselines (6 arcsec) allows us to carry out optical identi…
View article: The LOFAR Two-Metre Sky Survey (LoTSS): VI. Optical identifications for the second data release
The LOFAR Two-Metre Sky Survey (LoTSS): VI. Optical identifications for the second data release Open
The second data release of the LOFAR Two-Metre Sky Survey (LoTSS) covers 27% of the northern sky, with a total area of $\sim 5,700$ deg$^2$. The high angular resolution of LOFAR with Dutch baselines (6 arcsec) allows us to carry out optica…
View article: A MeerKAT-meets-LOFAR study of Abell 1413: a moderately disturbed non-cool-core cluster hosting a ~500 kpc ‘mini’-halo
A MeerKAT-meets-LOFAR study of Abell 1413: a moderately disturbed non-cool-core cluster hosting a ~500 kpc ‘mini’-halo Open
Many relaxed cool-core clusters host diffuse radio emission on scales of hundreds of kiloparsecs: mini-haloes. However, the mechanism responsible for generating them, as well as their connection with central active galactic nuclei, is elus…
View article: Revisiting the alignment of radio galaxies in the ELAIS-N1 field
Revisiting the alignment of radio galaxies in the ELAIS-N1 field Open
Aims. Previous studies reported an alignment of the major axes of radio galaxies on various angular scales. Here, we study the alignment of radio galaxies in the ELAIS-N1 Low Frequency ARray (LOFAR) deep field, which covers an area of 25 d…
View article: Deep low-frequency radio observations of Abell 2256
Deep low-frequency radio observations of Abell 2256 Open
We present the first detailed analysis of the radio halo in the merging galaxy cluster Abell 2256 using the LOw Frequency ARray, the upgraded Giant Metrewave Radio Telescope, and the Karl G. Jansky Very Large Array. Radio observations (120…
View article: Deep low-frequency radio observations of Abell 2256 II: The ultra-steep spectrum radio halo
Deep low-frequency radio observations of Abell 2256 II: The ultra-steep spectrum radio halo Open
We present the first detailed analysis of the radio halo in the merging galaxy cluster Abell 2256 using the LOFAR, uGMRT, and VLA. These observations combined with archival X-ray data allowed us to study the halo emission with unprecedente…
View article: The detection of cluster magnetic fields via radio source depolarisation
The detection of cluster magnetic fields via radio source depolarisation Open
It has been well established that galaxy clusters have magnetic fields. The exact properties and origin of these magnetic fields are still uncertain even though these fields play a key role in many astrophysical processes. Various attempts…
View article: Deep Low-frequency Radio Observations of A2256. I. The Filamentary Radio Relic
Deep Low-frequency Radio Observations of A2256. I. The Filamentary Radio Relic Open
We present deep and high-fidelity images of the merging galaxy cluster A2256 at low frequencies using the upgraded Giant Metrewave Radio Telescope (uGMRT) and LOw-Frequency ARray (LOFAR). This cluster hosts one of the most prominent known …
View article: Deep low-frequency radio observations of Abell 2256 I: The filamentary radio relic
Deep low-frequency radio observations of Abell 2256 I: The filamentary radio relic Open
We present deep and high fidelity images of the merging galaxy cluster Abell 2256 at low frequencies, using the upgraded Giant Metrewave Radio Telescope (uGMRT) and LOw-Frequency ARray (LOFAR). This cluster hosts one of the most prominent …
View article: A LOFAR-uGMRT spectral index study of distant radio halos
A LOFAR-uGMRT spectral index study of distant radio halos Open
Context. Radio halos are megaparsec-scale diffuse radio sources mostly located at the centres of merging galaxy clusters. The common mechanism invoked to explain their origin is the re-acceleration of relativistic particles caused by large…
View article: LOFAR detection of a low-power radio halo in the galaxy cluster Abell 990
LOFAR detection of a low-power radio halo in the galaxy cluster Abell 990 Open
Radio haloes are extended (∼Mpc), steep spectrum sources found in the central region of dynamically disturbed clusters of galaxies. Only a handful of radio haloes have been reported to reside in galaxy clusters with a mass $M_{500}\lesssim…
View article: A giant radio bridge connecting two clusters in Abell 1758
A giant radio bridge connecting two clusters in Abell 1758 Open
Collisions between galaxy clusters dissipate enormous amounts of energy in the intra-cluster medium (ICM) through turbulence and shocks. In the process, Mpc-scale diffuse synchrotron emission in form of radio halos and relics can form. How…