2024-25 has been an exciting year for the solar science group of the MWA. We have had significant developments on both fronts - developing novel calibration and imaging algorithms and pipelines and using them to pursue novel science. On the techniques front, we have made strides towards making state-of-the-art spectro-polarimetric snapshot images and are working towards automating this...
This talk presents a cost feasible remote sensing solution that we have developed to aid and improve the calibration of Murchison Widefield Array (MWA) measurements for ionospheric errors using small satellites. For polarimetry, a crucial step in the calibration of MWA measurements involves removing the polarization error due to ionospheric Faraday rotation (FR) with a sufficiently high...
The plasma bubble where the density of the ionosphere is low caused due to the Rayleigh–Taylor instability. As the low-density region contains a small-scale structure, the variation of total electron content (TEC) is a good indicator of a plasma bubble. The TEC data observed by the Global Navigation Satellite Systems (GNSS) shows plasma bubbles propagated to Western Australia from the...
Square Kilometer Array (SKA) will provide unprecedented quality data for solar sciences and space weather. Understanding space weather is vital for human space endeavours and territorial existence by avoiding space-based catastrophes. The Sun is a plasma laboratory capturing a variety of plasma parameters and plays a pivotal role in space weather. Thus, solar activity, including eruptions like...
Interplanetary scintillation (IPS) is the variability of compact radio sources caused by turbulence in the solar wind. IPS is a fantastic space weather tool as it is able to measure the solar wind density along any line of sight an arbitrary distance from the Sun, giving it unlimited reign to probe the entire heliosphere.
By adapting this technique for modern low-frequency instruments such as...
