92 citations · 351 across the 12 of their papers we have counts for
12 papers
The dependence of triggering mechanisms on radio AGN sub-types: the role of galaxy mergers
Freya Barwell, Clive N. Tadhunter, Jonathon C. S. Pierce +10
Powerful, radio-loud active galactic nuclei (AGN) are associated with one of the most important forms of AGN feedback, and understanding how they are triggered is key to properly i…
The Merging Galaxy Cluster Environment Affects the Morphology of Radio-AGN
Mary Rickel, Emily Moravec, Yjan A. Gordon +4
It has previously been found that the galaxy cluster environment can affect the fueling and evolution of Active Galactic Nuclei (AGN). This work examines the effect of the merging…
Galaxy interactions are the dominant trigger for local type 2 quasars
J. C. S. Pierce, C. Tadhunter, C. Ramos Almeida +8
The triggering mechanism for the most luminous, quasar-like active galactic nuclei (AGN) remains a source of debate, with some studies favouring triggering via galaxy mergers, but…
Warm molecular and ionized gas kinematics in the Type-2 quasar J0945+1737
G. Speranza, C. Ramos Almeida, J. A. Acosta-Pulido +11
We analyze Near-Infrared Integral Field Spectrograph (NIFS) observations of the type-2 quasar (QSO2) SDSS J094521.33+173753.2 to investigate its warm molecular and ionized gas kine…
Identifying anomalous radio sources in the EMU Pilot Survey using a complexity-based approach
Gary Segal, David Parkinson, Ray Norris +12
The Evolutionary Map of the Universe (EMU) large-area radio continuum survey will detect tens of millions of radio galaxies, giving an opportunity for the detection of previously u…
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…
Quantifying the cool ISM in radio AGNs: evidence for late-time re-triggering by galaxy mergers and interactions
E. Bernhard, C. N. Tadhunter, J. C. S. Pierce +4
We use deep Herschel observations of the complete 2Jy sample of powerful radio AGNs in the local universe (0.05 < z < 0.7) to probe their cool interstellar medium (ISM) contents an…
Do AGN triggering mechanisms vary with radio power? II. The importance of mergers as a function of radio power and optical luminosity
J. C. S. Pierce, C. N. Tadhunter, Y. Gordon +7
Investigation of the triggering mechanisms of radio AGN is important for improving our general understanding of galaxy evolution. In the first paper in this series, detailed morpho…
The diverse cold molecular gas contents, morphologies, and kinematics of type-2 quasars as seen by ALMA
C. Ramos Almeida, M. Bischetti, S. Garcia-Burillo +8
We present CO(2-1) and adjacent continuum observations of 7 nearby radio-quiet type-2 quasars (QSO2s) obtained with ALMA at ~0.2" resolution (370 pc at z~0.1). The CO morphologies…
The radio properties of HERGs with intermediate radio powers
Jonathon C. S. Pierce, Clive N. Tadhunter, Raffaella Morganti
In the past decade, high sensitivity radio surveys have revealed that the local radio AGN population is dominated by moderate-to-low power sources with emission that is compact on…
Do AGN triggering mechanisms vary with radio power? I.Optical morphologies of radio-intermediate HERGs
Jonathon C. S. Pierce, Clive N. Tadhunter, Cristina Ramos Almeida +2
Radio AGNs with intermediate radio powers are capable of driving multi-phase outflows in galaxy bulges, and are also more common than their high-radio-power counterparts. In-depth…
The Effect of Minor and Major Mergers on the Evolution of Low Excitation Radio Galaxies
Yjan A. Gordon, Kevin A. Pimbblet, Sugata Kaviraj +8
We use deep, , -band imaging from the Dark Energy Camera Legacy Survey (DECaLS) to search for past, or ongoing, merger activit…