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View article: Glacier processes from seismic recordings on Sørsdal Glacier, East Antarctica
Glacier processes from seismic recordings on Sørsdal Glacier, East Antarctica Open
A catalogue of seismic events is produced and analysed for Sørsdal Glacier, East Antarctica. Recordings were made using an irregular array of three broadband and eight short-period seismometers, with approximately 3 km aperture, deployed s…
View article: Detection of supernova magnitude fluctuations induced by large-scale structure
Detection of supernova magnitude fluctuations induced by large-scale structure Open
The peculiar velocities of supernovae and their host galaxies are correlated with the large-scale structure of the Universe, and can be used to constrain the growth rate of structure and test the cosmological model. In this work, we measur…
View article: The Centre of Attention: A Powerful Radio Galaxy Pinpoints a Near-infrared-dark Protocluster at <i>z</i> ∼ 3.9
The Centre of Attention: A Powerful Radio Galaxy Pinpoints a Near-infrared-dark Protocluster at <i>z</i> ∼ 3.9 Open
We report the discovery of a z ∼ 3.9 protocluster identified from Atacama Large Millimeter/submillimeter Array Band 3 spectral scans of a bright radio source selected from the Galactic and Extragalactic All-sky Murchison Widefield Array (G…
View article: BRAiSE: synthetic polarisation in RMHD AGN jet simulations
BRAiSE: synthetic polarisation in RMHD AGN jet simulations Open
We present a new method to calculate the polarised synchrotron emission of radio AGN sources using magnetic field information from 3-dimensional relativistic magnetohydrodynamical (RMHD) simulations. Like its predecessor, which uses pressu…
View article: Jet outbursts, non-thermal pressure, and the AGN jet duty cycle
Jet outbursts, non-thermal pressure, and the AGN jet duty cycle Open
We predict the non-thermal pressure (NTP) induced in the cores of galaxy clusters by kinetic jet feedback from an active galactic nucleus (AGN). We model a population of Fanaroff–Riley type I jets when sampling power-law distributions in j…
View article: Jet outbursts, non-thermal pressure and the AGN jet duty cycle
Jet outbursts, non-thermal pressure and the AGN jet duty cycle Open
We predict the non-thermal pressure (NTP) induced in the cores of galaxy clusters by kinetic jet feedback from an active galactic nucleus (AGN). We model a population of Fanaroff-Riley type I jets when sampling power-law distributions in j…
View article: The Centre of Attention: a Powerful Radio Galaxy Pinpoints a NIR-Dark Protocluster at z~3.9
The Centre of Attention: a Powerful Radio Galaxy Pinpoints a NIR-Dark Protocluster at z~3.9 Open
We report the discovery of a $z\sim3.9$ protocluster identified from Atacama Large Millimetre/sub-millimetre Array Band 3 spectral scans of a bright radio source selected from the GaLactic and Extra-galactic All-sky Murchison Widefield Arr…
View article: Seismic monitoring of grounding line processes at Totten Glacier, East Antarctica
Seismic monitoring of grounding line processes at Totten Glacier, East Antarctica Open
The Aurora Subglacial Basin (ASB), East Antarctica, contains approximately 3.5m global sea-level equivalent of marine-based ice, which primarily drains through Totten Glacier. The dynamics of Totten Glacier are therefore a major influence …
View article: Seismicity of Denman Glacier: Constraints on Geometry and Dynamics
Seismicity of Denman Glacier: Constraints on Geometry and Dynamics Open
Denman Glacier is one of the largest outlet glaciers in Antarctica. Despite its potential significance for sea level change, its geometry and dynamics remain poorly constrained, making predictions of its response to the changing climate ch…
View article: AGN energetics and lifetimes from remnant radio galaxies
AGN energetics and lifetimes from remnant radio galaxies Open
The energy coupling efficiency of active galactic nucleus (AGN) outbursts is known to vary significantly with factors including the jet kinetic power, duration of the outburst, and properties of the host galaxy group or cluster. As such, c…
View article: CosmoDRAGoN II: Remnant radio galaxies in group and cluster environments
CosmoDRAGoN II: Remnant radio galaxies in group and cluster environments Open
Radio galaxy remnants are a rare subset of the radio-loud active galactic nuclei (RLAGN) population, representing the quiescent phase in the RLAGN lifecycle. Despite their observed scarcity, they offer valuable insights into the AGN duty c…
View article: Spectral signatures of young radio galaxies
Spectral signatures of young radio galaxies Open
We investigate the evolution of active galactic nucleus jets on kiloparsec-scales due to their interaction with the clumpy interstellar medium (ISM) of the host galaxy and, subsequently, the surrounding circumgalactic environment. Hydrodyn…
View article: A jet-induced shock in a young, powerful radio galaxy at <i>z</i> = 3.00
A jet-induced shock in a young, powerful radio galaxy at <i>z</i> = 3.00 Open
The bright radio source, GLEAM J091734 $-$ 001243 (hereafter GLEAM J0917 $-$ 0012), was previously selected as a candidate ultra-high redshift ( $z \gt 5$ ) radio galaxy due to its compact radio size and faint magnitude ( $K(\mathrm{AB})=2…
View article: Spectral signatures of young radio galaxies
Spectral signatures of young radio galaxies Open
We investigate the evolution of active galactic nucleus jets on kiloparsec-scales due to their interaction with the clumpy interstellar medium (ISM) of the host galaxy and, subsequently, the surrounding circumgalactic environment. Hydrodyn…
View article: A Jet-Induced Shock in a Young, Powerful Radio Galaxy at z=3.00
A Jet-Induced Shock in a Young, Powerful Radio Galaxy at z=3.00 Open
The bright radio source, GLEAM J091734-001243 (hereafter GLEAM J0917-0012), was previously selected as a candidate ultra-high redshift (z>5) radio galaxy due to its compact radio size and faint magnitude (K(AB)=22.7). Its redshift was not …
View article: The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host galaxies
The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host galaxies Open
We present deep near-infrared $K_{\rm s}$-band imaging for 35 of the 53 sources from the high-redshift ($z > 2$) radio galaxy candidate sample defined in Broderick et al. (2022). These images were obtained using the High-Acuity Widefield $…
View article: Faraday rotation as a probe of radio galaxy environment in RMHD AGN jet simulations
Faraday rotation as a probe of radio galaxy environment in RMHD AGN jet simulations Open
Active galactic nuclei (AGNs) play an integral role in galaxy formation and evolution by influencing galaxies and their environments through radio jet feedback. Historically, interpreting observations of radio galaxies and quantifying radi…
View article: AGN energetics and lifetimes from remnant radio galaxies
AGN energetics and lifetimes from remnant radio galaxies Open
The energy coupling efficiency of active galactic nucleus (AGN) outbursts is known to {vary} significantly with factors including the jet kinetic power, duration of the outburst, and properties of the host galaxy group or cluster. As such,…
View article: Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part 1: Event detection for cryoseismology
Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part 1: Event detection for cryoseismology Open
Cryoseismology is a powerful toolset for progressing the understanding of the structure and dynamics of glaciers and ice sheets. It can enable the detection of hidden processes such as brittle fracture, basal sliding, transient hydrologica…
View article: Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part 2: Unsupervised learning for source process characterization
Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part 2: Unsupervised learning for source process characterization Open
Given the high number and diversity of events in a typical cryoseismic dataset, in particular those recorded on ice sheet margins, it is desirable to use a semi-automated method of grouping similar events for reconnaissance and ongoing ana…
View article: Are Odd Radio Circles phoenixes of powerful radio galaxies?
Are Odd Radio Circles phoenixes of powerful radio galaxies? Open
Odd Radio Circles (ORCs) are a class of low surface brightness, circular objects approximately one arcminute in diameter. ORCs were recently discovered in the Australian Square Kilometre Array Pathfinder (ASKAP) data, and subsequently conf…
View article: The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host galaxies
The GLEAMing of the first supermassive black holes: III. Radio sources with ultra-faint host galaxies Open
We present deep near-infrared $K_\textrm{s}$ -band imaging for 35 of the 53 sources from the high-redshift ( $z \gt 2$ ) radio galaxy candidate sample defined in Broderick et al. (2022, PASA, 39, e061). These images were obtained using the…
View article: Are Odd Radio Circles phoenixes of powerful radio galaxies?
Are Odd Radio Circles phoenixes of powerful radio galaxies? Open
Odd Radio Circles (ORCs) are a class of low surface brightness, circular objects approximately one arcminute in diameter. ORCs were recently discovered in the Australian Square Kilometre Array Pathfinder (ASKAP) data and subsequently confi…
View article: Faraday rotation as a probe of radio galaxy environment in RMHD AGN jet simulations
Faraday rotation as a probe of radio galaxy environment in RMHD AGN jet simulations Open
Active galactic nuclei (AGN) play an integral role in galaxy formation and evolution by influencing galaxies and their environments through radio jet feedback. Historically, interpreting observations of radio galaxies and quantifying radio…
View article: Rayleigh–Taylor Flow with Two Interfaces: The Completed Boussinesq Approximation
Rayleigh–Taylor Flow with Two Interfaces: The Completed Boussinesq Approximation Open
A system of three horizontal fluid layers is considered, with two interfaces separating them. When the upper fluids are of higher density, the system is unstable and Rayleigh–Taylor instabilities occur, as interfacial disturbances grow wit…
View article: Comment on egusphere-2023-1341
Comment on egusphere-2023-1341 Open
Abstract. Given the high number and diversity of events in a typical cryoseismic dataset, in particular those recorded on ice sheet margins, it is desirable to use a semi-automated method of grouping similar events for reconnaissance and o…
View article: Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part B: Unsupervised learning for source process characterisation
Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part B: Unsupervised learning for source process characterisation Open
Given the high number and diversity of events in a typical cryoseismic dataset, in particular those recorded on ice sheet margins, it is desirable to use a semi-automated method of grouping similar events for reconnaissance and ongoing ana…
View article: Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part A: Event detection for cryoseismology
Towards the systematic reconnaissance of seismic signals from glaciers and ice sheets – Part A: Event detection for cryoseismology Open
Cryoseismology is a powerful toolset for progressing the understanding of the structure and dynamics of glaciers and ice sheets. It can enable the detection of hidden processes such as brittle fracture, basal sliding, transient hydrologica…