309 citations · 345 across the 9 of their papers we have counts for
7 papers · 1 filter
RadioLensfit: an HPC Tool for Accurate Galaxy Shape Measurement with SKA
Marzia Rivi, Lance Miller
The new generation radio telescopes, such as the Square Kilometre Array (SKA), are expected to reach sufficient sensitivity and resolution to provide large number densities of reso…
Radio Galaxy Detection in the Visibility Domain
Adam Malyali, Marzia Rivi, Filipe B. Abdalla +1
We explore a new Bayesian method of detecting galaxies from radio interferometric data of the faint sky. Working in the Fourier domain, we fit a single, parameterised galaxy model…
Radio Weak Lensing Shear Measurement in the Visibility Domain - II. Source Extraction
Marzia Rivi, Lance Miller
This paper extends the method introduced in Rivi et al. (2016b) to measure galaxy ellipticities in the visibility domain for radio weak lensing surveys. In that paper we focused on…
RadioLensfit: Bayesian weak lensing measurement in the visibility domain
Marzia Rivi, Lance Miller, Sphesihle Makhathini +1
Observationally, weak lensing has been served so far by optical surveys due to the much larger number densities of background galaxies achieved, which is typically by two to three…
Radio Weak Lensing Shear Measurement in the Visibility Domain - I. Methodology
Marzia Rivi, Lance Miller, Sphesihle Makhathini +1
The high sensitivity of the new generation of radio telescopes such as the Square Kilometre Array (SKA) will allow cosmological weak lensing measurements at radio wavelengths that…
GPU Accelerated Particle Visualization with Splotch
Marzia Rivi, Claudio Gheller, Tim Dykes +2
Splotch is a rendering algorithm for exploration and visual discovery in particle-based datasets coming from astronomical observations or numerical simulations. The strengths of th…
High-performance astrophysical visualization using Splotch
Zhefan Jin, Mel Krokos, Marzia Rivi +3
The scientific community is presently witnessing an unprecedented growth in the quality and quantity of data sets coming from simulations and real-world experiments. To access effe…