activity
20182026
most citedThe LOFAR Two-metre Sky Survey - II. First data release

586 citations · 2.7k across the 49 of their papers we have counts for

collaborators

50 papers

astro-ph.GA2026

Fundamental differences in the X-ray accretion properties of low and high-excitation radio galaxies

R. Kondapally, T. Holc, P. N. Best +7

We characterise the accretion rate properties of radio-detected AGN by combining deep radio and X-ray observations of the Boötes field. We used deep international LOFAR telescope o…

astro-ph.GA2026

The DESI View of the Faint Radio Source Population in LoTSS DR2

M. I. Arnaudova, L. R. Holden, D. J. B. Smith +10

The faint radio-source population includes galaxies dominated by both star formation (SF) and active galactic nuclei (AGN), which are two key processes shaping galaxy evolution. To…

astro-ph.GA2026

Evolution of AGN Across Cosmic Epochs with the SKAO

R. Kondapally, V. Singh, G. Mazzolari +10

Understanding the evolution of active galactic nuclei (AGN) and their host galaxies across cosmic epochs is one of the key science drivers of extragalactic astronomy. The detection…

astro-ph.GA2026★ 17 cited

The LOFAR Two-metre Sky Survey: VII. Third Data Release

T. W. Shimwell, M. J. Hardcastle, C. Tasse +99

We present the third data release of the LOFAR Two-metre Sky Survey (LoTSS-DR3). The survey images cover 88% of the northern sky and were created from 12,950 hrs of data (18.6 PB)…

astro-ph.CO2025

The Clustering of Active Galactic Nuclei and Star Forming Galaxies in the LoTSS DeepFields

C. L. Hale, P. N. Best, K. J. Duncan +7

Using deep observations across three of the LOFAR Two-metre Sky Survey Deep Fields, this work measures the angular clustering of star forming galaxies (SFGs) and low-excitation rad…

astro-ph.GA2025

The LOFAR Two-metre Sky Survey Deep Fields: new probabilistic spectroscopic classifications and the accretion rates of radio galaxies

M. I. Arnaudova, D. J. B. Smith, M. J. Hardcastle +8

The faint radio-source population includes sources dominated both by star formation and active galactic nuclei (AGN), encoding the evolution of activity in the Universe. To investi…

astro-ph.GA2025

Euclid Quick Data Release (Q1). First Euclid statistical study of the active galactic nuclei contribution fraction

Euclid Collaboration, B. Margalef-Bentabol, L. Wang +331

Active galactic nuclei (AGN) play a key role in galaxy evolution but are challenging to identify due to their varied observational signatures. Furthermore, understanding their impa…

astro-ph.CO2025★ 12 cited

The LOFAR Two-metre Sky Survey: Deep Fields Data Release 2. I. The ELAIS-N1 field

T. W. Shimwell, C. L. Hale, P. N. Best +29

We present the final 6'' resolution data release of the ELAIS-N1 field from the LOw-Frequency ARray (LOFAR) Two-metre Sky Survey Deep Fields project (LoTSS Deep). The 144MHz images…

astro-ph.GA2024

Unveiling AGN Outflows: [O iii] Outflow Detection Rates and Correlation with Low-Frequency Radio Emission

Emmy L. Escott, Leah K. Morabito, Jan Scholtz +10

Some Active Galactic Nuclei (AGN) host outflows which have the potential to alter the host galaxy's evolution (AGN feedback). These outflows have been linked to enhanced radio emis…

astro-ph.GA2024★ 9 cited

WEAVE First Light Observations: Origin and Dynamics of the Shock Front in Stephan's Quintet

M. I. Arnaudova, S. Das, D. J. B. Smith +62

We present a detailed study of the large-scale shock front in Stephan's Quintet, a byproduct of past and ongoing interactions. Using integral-field spectroscopy from the new Willia…

astro-ph.GA2024★ 1 cited

Radio-AGN activity across the galaxy population: dependence on stellar mass, star-formation rate, and redshift

R. Kondapally, P. N. Best, K. J. Duncan +16

We characterise the co-evolution of radio-loud AGN and their galaxies by mapping the dependence of radio-loud AGN activity on stellar mass and star-formation rate (SFR) across cosm…

astro-ph.GA2024

A hidden Active Galactic Nuclei population: the first radio luminosity functions constructed by physical process

Leah K. Morabito, R. Kondapally, P. N. Best +10

Both star formation (SF) and Active Galactic Nuclei (AGN) play an important role in galaxy evolution. Statistically quantifying their relative importance can be done using radio lu…

astro-ph.GA2024★ 1 cited

Mergers, Radio Jets, and Quenching Star-Formation in Massive Galaxies: Quantifying their Synchronized Cosmic Evolution & Assessing the Energetics

Timothy Heckman, Namrata Roy, Philip Best +1

The existence of a population of massive quiescent galaxies with little to no star-formation poses a challenge to our understanding of galaxy evolution. The physical process that q…

astro-ph.GA2024★ 1 cited

The JWST Emission Line Survey (JELS): An untargeted search for H emission line galaxies at and their physical properties

C. A. Pirie, P. N. Best, K. J. Duncan +19

We present the first results of the JWST Emission Line Survey (JELS). Utilising the first NIRCam narrow-band imaging at 4.7m, over 63 arcmin in the PRIMER/COSMOS field, we…

astro-ph.GA2024★ 8 cited

The JWST Emission Line Survey (JELS): Extending rest-optical narrow-band emission line selection into the Epoch of Reionization

K. J. Duncan, D. J. McLeod, P. N. Best +20

We present the JWST Emission Line Survey (JELS), a JWST imaging programme exploiting the wavelength coverage and sensitivity of NIRCam to extend narrow-band rest-optical emission l…

astro-ph.GA2024★ 13 cited

The LOFAR Two Metre Sky Survey Data Release 2: Probabilistic Spectral Source Classifications and Faint Radio Source Demographics

A. B. Drake, D. J. B. Smith, M. J. Hardcastle +8

We present an analysis of 152,355 radio sources identified in the second data release of the LOFAR Two Metre Sky Survey (LoTSS-DR2) with Sloan Digital Sky Survey (SDSS) spectroscop…

astro-ph.IM2024

Into the depths: Unveiling ELAIS-N1 with LOFAR's deepest sub-arcsecond wide-field images

J. M. G. H. J. de Jong, R. J. van Weeren, F. Sweijen +11

We present the deepest wide-field 115-166 MHz image at sub-arcsecond resolution spanning an area of 2.5 by 2.5 degrees centred at the ELAIS-N1 deep field. To achieve this, we impro…

astro-ph.GA2024

The LOFAR Two-metre Sky Survey: The nature of the faint source population and SFR-radio luminosity relation using Prospector

Soumyadeep Das, Daniel J. B. Smith, Paul Haskell +12

Spectral energy distribution (SED) fitting has been extensively used to determine the nature of the faint radio source population. Recent efforts have combined fits from multiple S…

astro-ph.GA2023★ 18 cited

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…

astro-ph.GA2023

Cosmic evolution of FRI and FRII sources out to z=2.5

J. M. G. H. J. de Jong, H. J. A. Röttgering, R. Kondapally +8

Radio-loud active galactic nuclei (RLAGN) play an important role in the evolution of galaxies through the effects on their environment. The two major morphological classes are core…

astro-ph.CO2023

Cosmology from LOFAR Two-metre Sky Survey Data Release 2: Angular Clustering of Radio Sources

C. L. Hale, D. J. Schwarz, P. N. Best +17

Covering 5600 deg to rms sensitivities of 70100 Jy beam, the LOFAR Two-metre Sky Survey Data Release 2 (LoTSS-DR2) provides the largest low-frequency (…

astro-ph.GA2023★ 69 cited

The LOFAR Two-Metre Sky Survey (LoTSS): VI. Optical identifications for the second data release

M. J. Hardcastle, M. A. Horton, W. L. Williams +49

The second data release of the LOFAR Two-Metre Sky Survey (LoTSS) covers 27% of the northern sky, with a total area of deg. The high angular resolution of LOFAR wi…

astro-ph.GA2023★ 27 cited

Cosmic evolution of radio-AGN feedback: confronting models with data

R. Kondapally, P. N. Best, M. Raouf +11

Radio-mode feedback is a key ingredient in galaxy formation and evolution models, required to reproduce the observed properties of massive galaxies in the local Universe. We study…

astro-ph.GA2023★ 6 cited

A multi-band AGN-SFG classifier for extragalactic radio surveys using machine learning

J. Karsten, L. Wang, B. Margalef-Bentabol +7

Extragalactic radio continuum surveys play an increasingly more important role in galaxy evolution and cosmology studies. While radio galaxies and radio quasars dominate at the bri…