489 citations · 1.2k across the 17 of their papers we have counts for
17 papers
The Evolutionary Map of the Universe: A new radio atlas for the southern hemisphere sky
A. M. Hopkins, A. Kapinska, J. Marvil +70
We present the Evolutionary Map of the Universe (EMU) survey conducted with the Australian Square Kilometre Array Pathfinder (ASKAP). EMU aims to deliver the touchstone radio atlas…
The evolution of extragalactic peaked-spectrum sources down to 54 megahertz
Sai Zhai, Anniek J. Gloudemans, Gülay Gürkan +4
Peaked-spectrum (PS) sources, known for their distinct peaked radio spectra, represent a type of radio-loud active galactic nuclei (AGN). Among these, megahertz-peaked spectrum (MP…
EMU/GAMA: Radio detected galaxies are more obscured than optically selected galaxies
U. T. Ahmed, A. M. Hopkins, J. Ware +13
We demonstrate the importance of radio selection in probing heavily obscured galaxy populations. We combine Evolutionary Map of the Universe (EMU) Early Science data in the Galaxy…
Ubiquitous radio emission in quasars: predominant AGN origin and a connection to jets, dust and winds
G. Calistro-Rivera, D. M. Alexander, C. M. Harrison +16
We present a comprehensive study of the physical origin of radio emission in optical quasars at redshifts z < 2.5. We focus particularly on the associations between compact radio e…
Central radio galaxies in galaxy clusters: Joint surveys by eROSITA and ASKAP
K. Böckmann, M. Brüggen, B. Koribalski +18
The extended ROentgen Survey with an Imaging Telescope Array (eROSITA) telescope onboard the Spectrum-Roentgen-Gamma (SRG) mission has finished the first eROSITA All-Sky Survey (eR…
Nearby galaxies in LoTSS-DR2: insights into the non-linearity of the radio-SFR relation
V. Heesen, M. Staffehl, A. Basu +24
Context. Cosmic rays and magnetic fields are key ingredients in galaxy evolution, regulating both stellar feedback and star formation. Their properties can be studied with low-freq…
Deep ASKAP EMU Survey of the GAMA23 field: Properties of radio sources
Gülay Gürkan, I. Prandoni, A. O'Brien +19
We present the Australian Square Kilometre Array Pathfinder (ASKAP) observations of the Galaxy and Mass Assembly (GAMA)-23h field. The survey was carried out at 887.5 MHz and cover…
The LOFAR Two-metre Sky Survey -- V. Second data release
T. W. Shimwell, M. J. Hardcastle, C. Tasse +103
In this data release from the LOFAR Two-metre Sky Survey (LoTSS) we present 120-168MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at ap…
Accretion mode versus radio morphology in the LOFAR Deep Fields
B. Mingo, J. H. Croston, P. N. Best +17
Radio-loud active galaxies have two accretion modes [radiatively inefficient (RI) and radiatively efficient (RE)], with distinct optical and infrared signatures, and two jet dynami…
A population of galaxy-scale jets discovered using LOFAR
B. Webster, J. H. Croston, B. Mingo +10
The effects of feedback from high luminosity radio-loud AGN have been extensively discussed in the literature, but feedback from low-luminosity radio-loud AGN is less well understo…
The Performance of Photometric Reverberation Mapping at High Redshift and the Reliability of Damped Random Walk Models
S. C. Read, D. J. B. Smith, M. J. Jarvis +1
Accurate methods for reverberation mapping using photometry are highly sought after since they are inherently less resource intensive than spectroscopic techniques. However, the ef…
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…
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…
ASKAP Commissioning Observations of the GAMA 23 Field
Denis A. Leahy, A. M. Hopkins, R. P. Norris +25
We have observed the G23 field of the Galaxy And Mass Assembly (GAMA) survey using the Australian Square Kilometre Array Pathfinder (ASKAP) in its commissioning phase, to validate…
The Far-Infrared Radio Correlation at low radio frequency with LOFAR/H-ATLAS
S. C. Read, D. J. B. Smith, G. Gürkan +14
The radio and far-infrared luminosities of star-forming galaxies are tightly correlated over several orders of magnitude; this is known as the far-infrared radio correlation (FIRC)…
LOFAR/H-ATLAS: The low-frequency radio luminosity - star-formation rate relation
Gulay Gurkan, Martin J. Hardcastle, Dan J. B. Smith +11
Radio emission is a key indicator of star-formation activity in galaxies, but the radio luminosity-star formation relation has to date been studied almost exclusively at frequencie…
LOFAR/H-ATLAS: A deep low-frequency survey of the Herschel-ATLAS North Galactic Pole field
M. J. Hardcastle, G. Gürkan, R. J. van Weeren +25
We present LOFAR High-Band Array (HBA) observations of the Herschel-ATLAS North Galactic Pole survey area. The survey we have carried out, consisting of four pointings covering aro…