Aug 28 – 30, 2024
BC Building, Swiss Federal Institute of Technology Lausanne (EPFL)
Europe/Zurich timezone

Interplanetary Scintillation Science with the Murchison Widefield Array

Aug 29, 2024, 10:30 AM
20m
BC01 (level 0) (BC Building, Swiss Federal Institute of Technology Lausanne (EPFL))

BC01 (level 0)

BC Building, Swiss Federal Institute of Technology Lausanne (EPFL)

Rte Cantonale, 1015 Lausanne, Switzerland
Presentation Solar, Heliospheric and Ionospheric Science (SHI) Solar, Heliospheric and Ionospheric Science

Speaker

Angelica Waszewski (ICRAR - Curtin University)

Description

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 the Murchison Widefield Array (MWA) we have made some key advances. The unique capabilities of the MWA have already been exploited to launch the IPS space weather era of the MWA, with the first detection and characterisation of a coronal mass ejection (CME), with many more potential CME candidates identified in recent data.
Owing to the huge field of view of the MWA, we are able to monitor all IPS sources across 30 degrees of the sky, leading to an unprecedented density of measurements catalogued in the largest IPS source survey to date.
In this presentation, I will give a quick overview of IPS, updates on the next data release and expansion of the MWA IPS survey, as well as how the MWA is being used to study new CME candidates in early-2023 data.

Timeslot preferences Preference for morning timeslot (European time), length 20min

Primary authors

Angelica Waszewski (ICRAR - Curtin University) John Morgan

Presentation materials