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

A census of millisecond pulsars with the MWA

Aug 29, 2024, 4:30 PM
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 Pulsars and Fast Transients (PFT) Pulsars and Fast Transients

Speaker

Christopher Lee (Curtin University)

Description

Millisecond pulsars (MSPs) are exquisite astrophysical tools which provide unique opportunities to advance fundamental physics. The MWA is playing an important role in preparing for SKA science, having recently completed data collection for the Southern-sky MWA Rapid Two-metre (SMART) pulsar survey. With a dwell time of 4800 s and high time/frequency resolutions, SMART will be the most sensitive southern pulsar survey at frequencies below 300 MHz. Several pulsar discoveries have been made, as well as re-detections of over 200 pulsars. To date, very few southern MSPs have been observed at such low frequencies. The SMART data provide a valuable resource for studying the low-frequency characteristics of MSPs, including their spectral properties and profile evolution. Motivated by this, we are performing a census of known MSPs in the SMART data. The census will inform pulsar population simulations to assess the detectable population of MSPs in the SKA-Low band and will feed into plans for performing targeted, high-sensitivity searches for such pulsars. I will present the progress to date from these efforts, including the updated MSP census and initial results from the ongoing searches.

Timeslot preferences 15+5 min

Primary author

Christopher Lee (Curtin University)

Co-authors

Dr Bradley Meyers (Curtin University) Ramesh Bhat (Dr)

Presentation materials