A5103200999- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- Spectroscopy and Laser Applications
- Nuclear Physics and Applications
- Photocathodes and Microchannel Plates
- Astrophysics and Cosmic Phenomena
- Veterinary Equine Medical Research
Macquarie University
2023-2024
ASTRO-3D
2023-2024
ARC Centre of Excellence for All-sky Astrophysics
2023-2024
Australian Astronomical Observatory
2023
ABSTRACT Using adaptive optics with the Multi-Unit Spectroscopic Explorer on Very Large Telescope, Middle Ages Galaxy Properties Integral Field Spectroscopy survey allows us to study spatially resolved Universe at a crucial time of ∼4 Gyr ago (z ∼ 0.3) when simulations predict greatest diversity in evolutionary pathways for galaxies. We investigate radial trends star formation (SF) activity and luminosity-weighted stellar ages as function offset from star-forming main sequence (SFMS) total...
The nature of the minute-to-hour long Fast X-ray Transients (FXTs) localised by telescopes such as Chandra, Swift, and XMM-Newton remains mysterious, with numerous models suggested for events. Here, we report multi-wavelength observations EP240315a, a 1600 s transient detected Einstein Probe, showing it to have redshift z=4.859. We measure low column density neutral hydrogen, indicating that event is embedded in low-density environment, further supported direct detection leaking ionising...
Abstract We propose a new method for identifying active galactic nuclei (AGN) in low mass ( $\mathrm{M}_*\leq10^{10}\mathrm{M}_\odot$ ) galaxies. This relies on spectral energy distribution (SED) fitting to identify galaxies whose radio flux density has an excess over that expected from star formation alone. Combining data the Galaxy and Mass Assembly (GAMA) G23 region GAMA, Evolutionary Map of Universe (EMU) early science observations, Wide-field Infrared Survey Explorer (WISE), we compare...
We report the discovery of three double-peaked Lyman- α emitters (LAEs) exhibiting strong blue-peak emission at 2.9 ≲ z 4.8 in VLT/MUSE data obtained as part Middle Ages Galaxy Properties with Integral Field Spectroscopy (MAGPI) survey. These systems provide a unique window into scattering Ly photons by neutral hydrogen (H I ), suggesting gas inflows along line sight and low H column density. Two them = 3.6, are spatially extended halos their core regions clearly stronger blue peak than red...
We propose a new method for identifying active galactic nuclei (AGN) in low mass ($\rm M_*\leq10^{10}M_\odot$) galaxies. This relies on spectral energy distribution (SED) fitting to identify galaxies whose radio flux density has an excess over that expected from star formation alone. Combining data the Galaxy and Mass Assembly (GAMA) G23 region GAMA, Evolutionary Map of Universe (EMU) early science observations, Wide-field Infrared Survey Explorer (WISE), we compare this technique with...
Galaxy gas kinematics are sensitive to the physical processes that contribute a galaxy's evolution. It is expected external will cause more significant kinematic disturbances in outer regions, while internal for inner regions. Using subsample of 47 galaxies ($0.27<z<0.36$) from Middle Ages Properties with Integral Field Spectroscopy (MAGPI) survey, we conduct study into source by measuring asymmetry present ionised line-of-sight velocity maps at $0.5R_e$ (inner regions) and $1.5R_e$ (outer...
Abstract Galaxy gas kinematics are sensitive to the physical processes that contribute a galaxy’s evolution. It is expected external will cause more significant kinematic disturbances in outer regions, while internal for inner regions. Using subsample of 47 galaxies ( $0.27<z<0.36$ ) from Middle Ages Properties with Integral Field Spectroscopy (MAGPI) survey, we conduct study into source by measuring asymmetry present ionised line-of-sight velocity maps at $0.5R_e$ (inner regions) and...
Using adaptive optics with the Multi-Unit Spectroscopic Explorer (MUSE) on Very Large Telescope (VLT), Middle Ages Galaxy Properties Integral Field Spectroscopy (MAGPI) survey allows us to study spatially resolved Universe at a crucial time of ~4 Gyr ago ($z$ ~ 0.3) when simulations predict greatest diversity in evolutionary pathways for galaxies. We investigate radial trends star formation (SF) activity and luminosity-weighted stellar ages as function offset from star-forming main sequence...
We present a study of kinematic asymmetries from the integral field spectroscopic surveys MAGPI and SAMI. By comparing in ionsied gas stars, we aim to disentangle physical processes that contribute disturbances. normalise deviations circular motion by $S_{05}$, allowing us stars gas, regardless temperature. find similar distribution stellar galaxies where do not detect ionised suggesting whatever is driving does always lead removal. In both SAMI, an anti-correlation between asymmetry mass,...
Abstract We present spectroscopic properties of 22 Ly $\alpha$ emitters (LAEs) at $z = 5.5 - 6.6$ with luminosity $\mathrm{log}( L_{\mathrm{Ly}\alpha} \, [\mathrm{erg} \mathrm{s}^{-1}]) 42.4 43.5 $ , obtained using VLT/MUSE as part the Middle Ages Galaxy Properties Integral Field Spectroscopy (MAGPI) survey. Additionally, we incorporate broad-band photometric data from Subaru Hyper Suprime-Cam (HSC) Wide layer for 17 LAEs in our sample. The HSC- y band magnitudes show that are UV-bright,...
We report the discovery of three double-peaked Lyman-$\alpha$ emitters (LAEs) exhibiting strong blue peak emission at 2.9 $\lesssim z \lesssim$ 4.8, in VLT/MUSE data obtained as part Middle Ages Galaxy Properties with Integral Field Spectroscopy (MAGPI) survey. These systems provide a unique window into scattering photons by neutral hydrogen (HI), suggesting gas inflows along line-of-sight and low HI column density. Two them $z=2.9$ $z=3.6$ are spatially extended halos their core regions...