Fields of Research

Cosmology and extragalactic astronomy
Astronomical sciences
Galactic astronomy
Geodesy
Astronomical instrumentation
High energy astrophysics and galactic cosmic rays
Solar physics
Plant physiology
Geophysics
Particle physics
Astrobiology
Cartography and digital mapping

Research Objectives

Expanding knowledge in the physical sciences
Expanding knowledge in the earth sciences
Environmentally sustainable plant production
Learner and learning
Expanding knowledge in engineering

Career Best Publications

Active galactic nucleus feedback drives the colour evolution of local galaxies; Monthly Notices of the Royal Astronomical Society
AGN jet kinetic power and the energy budget of radio galaxy lobes; The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics
Energetics and lifetimes of local radio active galactic nuclei; The Astrophysical Journal
Galaxy Zoo: dust and molecular gas in early-type galaxies with prominent dust lanes; Monthly Notices of the Royal Astronomical Society
Galaxy Zoo: dust lane early-type galaxies are tracers of recent, gas-rich minor mergers; Monthly Notices of the Royal Astronomical Society
Radio source feedback in galaxy evolution; The Astrophysical Journal
Simulating the effects of quasar structure on parameters from geodetic VLBI; Journal of Geodesy
Size dependence of the radio-luminosity-mechanical-power correlation in radio galaxies; Astrophysical Journal
The duty cycle of local radio galaxies; Monthly Notices of the Royal Astronomical Society

Research Publications

HST WFC3/Grism observations of the candidate ultra-high-redshift radio galaxy GLEAM J0917–0012; Publications of the Astronomical Society of Australia
A Herschel*-ATLAS study of dusty spheroids: Probing the minor-merger process in the local Universe; Monthly Notices of the Royal Astronomical Society
A simple model for AGN feedback in nearby early-type galaxies; Royal Astronomical Society. Monthly Notices
Active galactic nucleus feedback drives the colour evolution of local galaxies; Monthly Notices of the Royal Astronomical Society
AGN feedback through sound wave dissipation; Astrophysics and Space Science
AGN jet kinetic power and the energy budget of radio galaxy lobes; The Astrophysical Journal: An International Review of Astronomy and Astronomical Physics
An ALMA view of star formation efficiency suppression in early-type galaxies after gas-rich minor mergers; Monthly Notices Royal Astronomical Society
BL LAC OBJECT PKS B1144−379: An extreme scintillator; The Astrophysical Journal Letters
Calcium efflux systems in stress signaling and adaptation in plants; Frontiers in Plant Science
Challenges for geodetic VLBI in the southern hemisphere; Advances in Space Research
Changing modality behaviour in the radio light curve of blazar PKS B1144 - 379; Monthly Notices of the Royal Astronomical Society
Cold-gas outflows in typical low-redshift galaxies are driven by star formation, not AGN; Monthly Notices of the Royal Astronomical Society
Constraining the radio properties of the z = 6.44 QSO VIK J2318-3113; Astronomy and Astrophysics
Cosmology with powerful radio-loud AGNs; Monthly Notices of the Royal Astronomical Society
Delayed triggering of radio active galactic nuclei in gas-rich minor mergers in the local Universe; Monthly Notices of the Royal Astronomical Society
Discovery of a new extragalactic circular radio source with ASKAP: ORC J0102-2450; Monthly Notices of the Royal Astronomical Society
Discovery of H ɪ gas in a young radio galaxy at z = 0.44 using the Australian Square Kilometre Array Pathfinder; Monthly Notices of the Royal Astronomical Society
Dynamics of relativistic radio jets in asymmetric environments; Monthly Notices of the Royal Astronomical Society
Energetics and lifetimes of local radio active galactic nuclei; The Astrophysical Journal
Evolution of H II regions in hierarchically structured molecular clouds; Monthly Notices of the Royal Astronomical Society
Extended emission associated with young Hɪɪ regions; Monthly Notices of the Royal Astronomical Society
Feedback by supermassive black holes in galaxy evolution: Impacts of accretion and outflows on the star formation rate; Monthly Notices of the Royal Astronomical Society
Galaxy Zoo: dust and molecular gas in early-type galaxies with prominent dust lanes; Monthly Notices of the Royal Astronomical Society
Galaxy Zoo: dust lane early-type galaxies are tracers of recent, gas-rich minor mergers; Monthly Notices of the Royal Astronomical Society
How frequent are close supermassive binary black holes in powerful jet sources?; Monthly Notices of the Royal Astronomical Society
Interstellar scintillation of an extreme scintillator: PKS B1144-379; Monthly Notices of the Royal Astronomical Society
Investigating the evolution of PKS B1144-379: comparison of VLBI and scintillation techniques; Monthly Notices of the Royal Astronomical Society
Investigating the properties of AGN feedback in hot atmospheres triggered by cooling-induced gravitational collapse; Monthly Notices of the Royal Astronomical Society
Magnetic fields in galaxies - I. Radio discs in local late-type galaxies; Royal Astronomical Society. Monthly Notices
MASIV: The Microarcsecond Scintillation-Induced Variability; SINS - Small Ionized and Neutral Structures in the Diffuse Interstellar Medium
Measuring the jet power of flat-spectrum radio quasars; Astrophysical Journal
Microarcsecond scintillation-induced variability (MASIV) survey of the northern sky; Astronomical and Astrophysical Transactions
Molecular and atomic gas in dust lane early-type galaxies – I. Low star formation efficiencies in minor merger remnants; Monthly Notices of the Royal Astronomical Society
Mutual distance dependence drives the observed jet-power–radio-luminosity scaling relations in radio galaxies; Monthly Notices of the Royal Astronomical Society
Observability of intermittent radio sources in galaxy groups and clusters; Monthly Notices of the Royal Astronomical Society
On the estimation of a celestial reference frame in the presence of source structure; Monthly Notices of the Royal Astronomical Society
PKS 2250-351: A giant radio galaxy in Abell 3936; Publications of the Astronomical Society of Australia
PRAiSE: Resolved spectral evolution in simulated radio sources; Monthly Notices of the Royal Astronomical Society
Probing gaseous halos of galaxies with radio jets; Astronomy and Astrophysics
Radio AGN in spiral galaxies; Monthly Notices of the Royal Astronomical Society
Radio Galaxy Zoo: a search for hybrid morphology radio galaxies; Astronomical Journal
Radio Galaxy Zoo: CLARAN - a deep learning classifier for radio morphologies; Monthly Notices of the Royal Astronomical Society
Radio Galaxy Zoo: cosmological alignment of radio sources; Monthly notices of the Royal Astronomical Society
Radio Galaxy Zoo: discovery of a poor cluster through a giant wide-angle tail radio galaxy; Monthly Notices of the Royal Astronomical Society
Radio Galaxy Zoo: host galaxies and radio morphologies derived from visual inspection; Monthly Notices of the Royal Astronomical Society
Radio galaxy zoo: Knowledge transfer using rotationally invariant self-organizing maps; Publications of the Astronomical Society of the Pacific
Radio Galaxy Zoo: machine learning for radio source host galaxy cross-identification; Monthly Notices of the Royal Astronomical Society
Radio galaxy zoo: New giant radio galaxies in the RGZ DR1 catalogue; Monthly Notices of the Royal Astronomical Society
Radio Galaxy Zoo: observational evidence for environment as the cause of radio source asymmetry; Monthly Notices of the Royal Astronomical Society
Radio Galaxy Zoo: the distortion of radio galaxies by galaxy clusters; Astronomical Journal
Radio galaxy zoo: Unsupervised clustering of convolutionally auto-encoded radio-astronomical images; Publications of the Astronomical Society of the Pacific
Radio source feedback in galaxy evolution; The Astrophysical Journal
RAiSE II: resolved spectral evolution in radio AGN; Monthly Notices of the Royal Astronomical Society
RAiSE III: 3C radio AGN energetics and composition; Monthly Notices of the Royal Astronomical Society
RAiSE X: searching for radio galaxies in X-ray surveys; Monthly Notices of the Royal Astronomical Society
RAiSE: simulation-based analytical model of AGN jets and lobes; Monthly Notices of the Royal Astronomical Society
RAiSERed: radio continuum redshifts for lobed active galactic nuclei; Monthly Notices of the Royal Astronomical Society
Reconciliation of damped Lyman α and H ιι region metallicities; Monthly Notices of the Royal Astronomical Society
Remnant radio galaxies discovered in a multi-frequency survey; Publications of the Astronomical Society of Australia
Results from the regional AUSTRAL VLBI sessions for Southern Hemisphere reference frames; International Association of Geodesy Symposia
Scintillation is an indicator of astrometric stability; Monthly Notices of the Royal Astronomical Society
Simulating the effects of quasar structure on parameters from geodetic VLBI; Journal of Geodesy
Size dependence of the radio-luminosity-mechanical-power correlation in radio galaxies; Astrophysical Journal
Sound waves in the intracluster medium; Royal Astronomical Society. Monthly Notices
Spheroidal post-mergers in the local Universe; Monthly Notices of the Royal Astronomical Society
Testing general relativity with geodetic VLBI. What a single, specially designed experiment can teach us; Astronomy and Astrophysics
The AuScope geodetic VLBI array; Journal of Geodesy
The AUSTRAL VLBI observing program; Journal of Geodesy
The Australia Telescope Large Area Survey: spectroscopic catalogue and radio luminosity functions; Monthly Notices of the Royal Astronomical Society
The best of both worlds: Combining LOFAR and Apertif to derive resolved radio spectral index images; Astronomy and Astrophysics
The drivers of AGN activity in galaxy clusters: AGN fraction as a function of mass and environment; Monthly Notices of the Royal Astronomical Society
The duty cycle of local radio galaxies; Monthly Notices of the Royal Astronomical Society
The duty cycle of radio galaxies and AGN feedback ; The interface between galaxy formation and AGNs
The duty cycle of radio galaxies revealed by LOFAR: remnant and restarted radio source populations in the Lockman Hole; Monthly Notices of the Royal Astronomical Society
The effects of frequency-dependent quasar variability on the celestial reference frame; Journal of Geodesy
The effects of simulated and observed quasar structure on the VLBI reference frame; 2014 International Association of Geodesy Symposium (REFAG 2014)
The evolutionary map of the universe pilot survey; Publications of the Astronomical Society of Australia
The GLEAMing of the first supermassive black holes: II. A new sample of high-redshift radio galaxy candidates; Publications of the Astronomical Society of Australia
The life cycle of radio galaxies in the LOFAR Lockman Hole field; Astronomy and Astrophysics
The many lives of active galactic nuclei-II: the formation and evolution of radio jets and their impact on galaxy evolution; Royal Astronomical Society. Monthly Notices
The Micro-arcsecond Scintillation-Induced Variability (MASIV) Survey. II. The first four epochs; The Astrophysical Journal
The role of environment in the observed Fundamental Plane of radio active galactic nuclei; Monthly Notices of the Royal Astronomical Society
The triggering of local AGN and their role in regulating star formation; Monthly Notices of the Royal Astronomical Society
Triggered star formation in the inner filament of Centaurus A; Monthly Notices of the Royal Astronomical Society
Triggering active galactic nuclei in galaxy clusters; Monthly Notices of the Royal Astronomical Society

Research Projects

A major upgrade to the Australia Telescope Compact Array; Australian Research Council (ARC)
Broadband receivers for AuScope geodetic and astronomical applications; Australian Research Council (ARC)
Eternal struggle: star formation and black hole activity in galaxies; Australian Research Council (ARC)
Modelling supermassive black hole jets; Department of Education, Skills and Employment (DESE)
Probing the central engines of supermassive black holes; University of Tasmania (UTAS)

Research Candidate Supervision

The link between Active Galactic Nuclei and the stellar evolution of their host galaxy
Triggering and feedback from Active Galactic Nuclei across cosmic time