654 citations · 12.9k across the 278 of their papers we have counts for
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Differences in radio emission from similar M dwarfs in the binary system Ross 867-8
L. H. Quiroga-Nuñez, H. T. Intema, J. R. Callingham +5
Serendipitously, we have rediscovered radio emission from the binary system Ross 867 (M4.5V) and Ross 868 (M3.5V) while inspecting archival Giant Metrewave Radio Telescope (GMRT) o…
Realising the LOFAR Two-Metre Sky Survey -- using the supercomputer JUWELS at the Forschungszentrum Jülich
A. Drabent, M. Hoeft, A. P. Mechev +10
The new generation of high-resolution broad-band radio telescopes, like the Low Frequency Array (LOFAR), produces, depending on the level of compression, between 1 to 10 TB of data…
Low-frequency radio absorption in Tycho's supernova remnant
Maria Arias, Jacco Vink, Ping Zhou +3
Tycho's SNR is the remnant of the type Ia supernova explosion SN1572. In this work we present new low-frequency radio observations with the LOFAR Low-Band and High-Band Antennae, c…
Revived Fossil Plasma Sources in Galaxy Clusters
S. Mandal, H. T. Intema, R. J. van Weeren +10
It is well established that particle acceleration by shocks and turbulence in the intra-cluster medium can produce cluster-scale synchrotron emitting sources. However, the detailed…
LOFAR early-time search for coherent radio emission from GRB 180706A
A. Rowlinson, K. Gourdji, K. van der Meulen +12
The nature of the central engines of gamma-ray bursts (GRBs) and the composition of their relativistic jets are still under debate. If the jets are Poynting flux dominated rather t…
A LOFAR-IRAS cross-match study: the far-infrared radio correlation and the 150-MHz luminosity as a star-formation rate
L. Wang, F. Gao, K. J. Duncan +15
Aims. We aim to study the far-infrared radio correlation (FIRC) at 150 MHz in the local Universe (at a median redshift z~0:05) and improve the use of the rest-frame 150-MHz luminos…
Radio constraints on dark matter annihilation in Canes Venatici I with LOFAR
Martin Vollmann, Volker Heesen, Timothy Shimwell +4
Dwarf galaxies are dark matter-dominated and therefore promising targets for the search for weakly interacting massive particles (WIMPs), which are well-known candidates for dark m…
Particle acceleration in a nearby galaxy cluster pair: the role of cluster dynamics
A. Botteon, R. Cassano, D. Eckert +17
Diffuse radio emission associated with the intra-cluster medium (ICM) is observed in a number of merging galaxy clusters. It is currently believed that in mergers a fraction of the…
One- and Two-point Source Statistics from the LOFAR Two-metre Sky Survey First Data Release
Thilo M. Siewert, Catherine Hale, Nitesh Bhardwaj +13
The LOFAR Two-metre Sky Survey (LoTSS) will map the complete Northern sky and provide an excellent opportunity to study the distribution and evolution of the large-scale structure…
Growth and disruption in the Lyra complex
S. Clavico, S. De Grandi, S. Ghizzardi +16
Nearby clusters of galaxies, z<0.1, are cosmic structures still under formation. Understanding the thermodynamic properties of merging clusters can provide crucial information on h…
LOFAR discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45
R. Cassano, A. Botteon, G. Di Gennaro +15
In this Letter, we report the discovery of a radio halo in the high-redshift galaxy cluster PSZ2 G099.86+58.45 () with the LOw Frequency ARray (LOFAR) at 120-168 MHz. This…
LOFAR first look at the giant radio galaxy 3C 236
A. Shulevski, P. D. Barthel, R. Morganti +8
We have examined the giant radio galaxy 3C~236 using LOFAR at 143 MHz down to an angular resolution of 7", in combination with observations at higher frequencies. We have used the…
Revisiting the Fanaroff-Riley dichotomy and radio-galaxy morphology with the LOFAR Two-Metre Sky Survey (LoTSS)
B. Mingo, J. H. Croston, M. J. Hardcastle +15
The relative positions of the high and low surface brightness regions of radio-loud active galaxies in the 3CR sample were found by Fanaroff and Riley to be correlated with their l…
NGC 326: X-shaped no more
M. J. Hardcastle, J. H. Croston, T. W. Shimwell +7
We present new 144-MHz LOFAR observations of the prototypical `X-shaped' radio galaxy NGC 326, which show that the formerly known wings of the radio lobes extend smoothly into a la…
Observations of a Pre-Merger Shock in Colliding Clusters of Galaxies
Liyi Gu, Hiroki Akamatsu, Timothy W. Shimwell +10
Clusters of galaxies are the largest known gravitationally-bound structures in the Universe. When clusters collide, they create merger shocks on cosmological scales, which transfor…
Scalability Model for the LOFAR Direction Independent Pipeline
A. P. Mechev, T. W. Shimwell, A. Plaat +3
LOFAR is a leading aperture synthesis telescope operated in the Netherlands with stations across Europe. The LOFAR Two-meter Sky Survey (LoTSS) will produce more than 3000 14 TB da…
A single fast radio burst localized to a massive galaxy at cosmological distance
K. W. Bannister, A. T. Deller, C. Phillips +51
Fast Radio Bursts (FRBs) are brief radio emissions from distant astronomical sources. Some are known to repeat, but most are single bursts. Non-repeating FRB observations have had…
Signatures from a merging galaxy cluster and its AGN population: LOFAR observations of Abell 1682
A. O. Clarke, A. M. M. Scaife, T. Shimwell +13
We present LOFAR data from 110--180~MHz of the merging galaxy cluster Abell 1682, alongside archival optical, radio and X-ray data. Our 6 arc-second resolution images at low freque…
A radio ridge connecting two galaxy clusters in a filament of the cosmic web
F. Govoni, E. Orrù, A. Bonafede +26
Galaxy clusters are the most massive gravitationally bound structures in the Universe. They grow by accreting smaller structures in a merging process that produces shocks and turbu…
Giant radio galaxies in the LOFAR Two-metre Sky Survey-I
P. Dabhade, H. J. A. Rottgering, J. Bagchi +7
Giant radio galaxies (GRGs) are a subclass of radio galaxies which have grown to megaparsec scales. GRGs are much rarer than normal sized radio galaxies (< 0.7 Mpc) and the reason…