A5074309568- Galaxies: Formation, Evolution, Phenomena
- Pulsars and Gravitational Waves Research
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Scientific Research and Discoveries
- Astrophysics and Cosmic Phenomena
- Geophysics and Sensor Technology
- Astrophysical Phenomena and Observations
- Geophysics and Gravity Measurements
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
ARC Centre of Excellence for All-sky Astrophysics
2024
ASTRO-3D
2024
International Centre for Radio Astronomy Research
2024
The University of Western Australia
2024
ARC Centre of Excellence for Gravitational Wave Discovery
2022-2024
Monash University
2022
Australian Research Council
2022
Swinburne University of Technology
2022
It is currently unknown how matter behaves at the extreme densities found within cores of neutron stars. Gravitational waves from binary star mergers encode rich information about stars' deformability, allowing equation state---and hence nuclear physics---to be inferred. Planned third-generation gravitational-wave observatories, having vastly improved sensitivity, are expected to provide tight constraints on state. We combine simulated observations by observatories Cosmic Explorer and...
Abstract Observations of the intracluster medium (ICM) in outskirts galaxy clusters reveal shocks associated with gas accretion from cosmic web. Previous work based on non-radiative cosmological hydrodynamical simulations have defined shock radius, $r_{\text{shock}}$ , using ICM entropy, $K \propto T/{n_\mathrm{e}}^{2/3}$ where T and $n_{\text{e}}$ are temperature electron density, respectively; is identified either radius at which K a maximum or its logarithmic slope minimum. We investigate...
We model long-term variations in the scintillation of binary pulsar PSR J1603$-$7202, observed by 64 m Parkes radio telescope (Murriyang) between 2004 and 2016. find that time variation arc curvature is well-modelled scattering from an anisotropic thin screen plasma Earth pulsar. Using our model, we measure inclination angle longitude ascending node orbit, yielding a significant improvement over constraints timing. From measurement angle, place lower bound on mass J1603$-$7202's companion...
Cosmological parameters such as $\Omega_{\rm{M}}$ and $\sigma_{8}$ can be measured indirectly using various methods, including galaxy cluster abundance cosmic shear. These measurements constrain the composite parameter $S_{8}$, leading to degeneracy between $\sigma_{8}$. However, some structural properties of clusters also correlate with cosmological parameters, due their dependence on a cluster's accretion history. In this work, we focus splashback radius, an observable feature that...
Abstract Cosmological parameters such as Ω M and σ 8 can be measured indirectly using various methods, including galaxy cluster abundance cosmic shear. These measurements constrain the composite parameter S , leading to degeneracy between . However, some structural properties of clusters also correlate with cosmological parameters, due their dependence on a cluster’s accretion history. In this work, we focus splashback radius, an observable feature that represents boundary surrounding...