212 citations · 454 across the 24 of their papers we have counts for
23 papers · 1 filter
New techniques to investigate the AGN-SF connection with integral field spectroscopy
Aman Chopra, Henry R. M. Zovaro, Rebecca L. Davies
Understanding the connection between active galactic nuclei and star-formation (the AGN-SF connection) is one of the longest standing problems in modern astrophysics. In the age of…
Hector Galaxy Survey: Data Processing, Quality Control and Early Science
S. Oh, M. L. P. Gunawardhana, S. M. Croom +52
The Hector Galaxy Survey is a new optical integral field spectroscopy (IFS) survey currently using the AAT to observe up to 15,000 galaxies at low redshift (). The Hector…
An Integral Field Spectroscopy Study Of Thin And Thick Discs In IC 2531
Fan Xu, K. C. Freeman, Henry Zovaro
Thin and thick discs are prominent components in the Milky Way and other spiral galaxies, but their formation histories are not yet understood, which is particularly true for thick…
Relighting the fire in Hickson Compact Group (HCG) 15: magnetised fossil plasma revealed by the SKA Pathfinders & Precursors
C. J. Riseley, T. Vernstrom, L. Lovisari +26
In the context of the life cycle and evolution of active galactic nuclei (AGN), the environment plays an important role. In particular, the over-dense environments of galaxy groups…
Does the Fundamental Metallicity Relation Evolve with Redshift? II: The Evolution in Normalisation of the Mass-Metallicity Relation
Alex M. Garcia, Paul Torrey, Sara L. Ellison +10
The metal content of galaxies is a direct probe of the baryon cycle. A hallmark example is the relationship between a galaxy's stellar mass, star formation rate (SFR), and gas-phas…
The SAMI Galaxy Survey: impact of star formation and AGN feedback processes on the ionized gas velocity dispersion
Sree Oh, Matthew Colless, Stefania Barsanti +12
We investigate the influence of star formation and instantaneous AGN feedback processes on the ionized gas velocity dispersion in a sample of 1285 emission-line galaxies with stell…
JWST/NIRSpec and MIRI observations of an expanding, jet-driven bubble of warm H in the radio galaxy 3C 326 N
James H. Leftley, Nicole P. H. Nesvadba, Geoff Bicknell +5
The physical link between AGN activity and the suppression of star formation in their host galaxies is one of the major open questions of AGN feedback. The Spitzer space mission re…
Does the Fundamental Metallicity Relation Evolve with Redshift? I: The Correlation Between Offsets from the Mass-Metallicity Relation and Star Formation Rate
Alex M. Garcia, Paul Torrey, Sara Ellison +8
The scatter about the mass-metallicity relation (MZR) has a correlation with the star formation rate (SFR) of galaxies. The lack of evidence of evolution in correlated scatter at $…
The SAMI Galaxy Survey: Using Tidal Streams and Shells to Trace the Dynamical Evolution of Massive Galaxies
Tomas H. Rutherford, Jesse van de Sande, Scott M. Croom +14
Slow rotator galaxies are distinct amongst galaxy populations, with simulations suggesting that a mix of minor and major mergers are responsible for their formation. A promising pa…
Constraints on the densities and temperature of Seyfert 2 NLR
Luc Binette, Henry R. M. Zovaro, Montserrat Villar Martin +7
Different studies have reported the so-called temperature problem of the narrow line region (NLR) of active galactic nuclei (AGNs). Its origin is still an open issue. To properly a…
Interplay of Stellar and Gas-Phase Metallicities: Unveiling Insights for Stellar Feedback Modeling with Illustris, IllustrisTNG, and EAGLE
Alex M. Garcia, Paul Torrey, Kathryn Grasha +6
The metal content of galaxies provides a window into their formation in the full context of the cosmic baryon cycle. In this study, we examine the relationship between stellar mass…
The SAMI Galaxy Survey: drives the presence of complex emission line profiles in star-forming galaxies
Henry R. M. Zovaro, J. Trevor Mendel, Brent Groves +13
Galactic fountains driven by star formation result in a variety of kinematic structures such as ionised winds and thick gas disks, both of which manifest as complex emission line p…
The SAMI Galaxy Survey: impact of black hole activity on galaxy spin-filament alignments
Stefania Barsanti, Matthew Colless, Francesco D'Eugenio +9
The activity of central supermassive black holes might affect the alignment of galaxy spin axes with respect to the closest cosmic filaments. We exploit the SAMI Galaxy Survey to s…
Beyond BPT: A New Multi-Dimensional Diagnostic Diagram for Classifying Power Sources Tested Using the SAMI Galaxy Survey
Victor Johnston, Anne Medling, Brent Groves +11
Current methods of identifying the ionizing source of nebular emission in galaxies are well defined for the era of single fiber spectroscopy, but still struggle to differentiate th…
The interplay between feedback, accretion, transport and winds in setting gas-phase metal distribution in galaxies
Piyush Sharda, Omri Ginzburg, Mark R. Krumholz +5
The recent decade has seen an exponential growth in spatially-resolved metallicity measurements in the interstellar medium (ISM) of galaxies. To first order, these measurements are…
The SAMI Survey: Evidence for dynamical coupling of ionised gas and young stellar populations
Caroline Foster, Sam Vaughan, Amelia Fraser-McKelvie +14
We explore local and global dynamical differences between the kinematics of ionised gas and stars in a sample of galaxies from Data Release 3 of the SAMI Galaxy Survey. We find bet…
Gas-phase metallicity break radii of star-forming galaxies in IllustrisTNG
Alex M. Garcia, Paul Torrey, Z. S. Hemler +6
We present radial gas-phase metallicity profiles, gradients, and break radii at redshift from the TNG50-1 star-forming galaxy population. These metallicity profiles are…
The SAMI Galaxy Survey: the difference between ionised gas and stellar velocity dispersions
Sree Oh, Matthew Colless, Francesco D'Eugenio +16
We investigate the mean locally-measured velocity dispersions of ionised gas () and stars () for 1090 galaxies with stellar masses $\log\,(M_*/M_{\odot}) \geq 9.5…
Revisiting the Giant Radio Galaxy ESO 422-G028: Part I. Discovery of a neutral inflow and recent star formation in a restarted giant
Henry R. M. Zovaro, Chris J. Riseley, Philip Taylor +4
Giant radio galaxies provide important clues into the life cycles and triggering mechanisms of radio jets. With large-scale jets spanning 1.8 Mpc, ESO 422-G028 () is a g…
Jet-driven AGN feedback on molecular gas and low star-formation efficiency in a massive local spiral galaxy with bright X-ray halo
N. P. H. Nesvadba, A. Y. Wagner, D. Mukherjee +6
It has long been suspected that powerful radio sources may lower the efficiency with which stars form from the molecular gas in their host galaxy, but so far, alternative mechanism…
Unravelling the enigmatic ISM conditions in Minkowski's Object
Henry R. M. Zovaro, Robert Sharp, Nicole P. H. Nesvadba +7
Local examples of jet-induced star formation lend valuable insight into its significance in galaxy evolution and can provide important observational constraints for theoretical mod…
Searching for signs of jet-driven negative feedback in the nearby radio galaxy UGC 05771
Henry R. M. Zovaro, Nicole P. H. Nesvadba, Robert Sharp +4
Hydrodynamical simulations predict that the jets of young radio sources can inhibit star formation in their host galaxies by injecting heat and turbulence into the interstellar med…
Jets blowing bubbles in the young radio galaxy 4C 31.04
Henry R. M. Zovaro, Robert Sharp, Nicole P. H. Nesvadba +5
We report the discovery of shocked molecular and ionized gas resulting from jet-driven feedback in the compact radio galaxy 4C 31.04 using near-IR imaging spectroscopy. 4C 31.04 is…