3–11 Jul 2025
University of Adelaide
Australia/Adelaide timezone
Please note: Timetable is provisional for the time being!

The enigmatic long-period radio transients

8 Jul 2025, 17:00
15m
Scott Theatre (University of Adelaide)

Scott Theatre

University of Adelaide

Oral Transients

Speaker

Natasha Hurley-Walker (Curtin University / International Centre for Radio Astronomy Research)

Description

The long-period radio transients are a newly-discovered class of Galactic radio sources that produce pulsed emission lasting tens of seconds to several minutes, repeating on timescales of tens of minutes to hours. Such cadence is unprecedented, and there is currently no clear emission mechanism or progenitor that can explain the observations, which include complex polarisation behaviour, pulse microstructure, and activity windows that range from hours to decades.

Could they be ultra-long period magnetars, and connected to the phenomenon of Fast Radio Bursts? Could they be white dwarf pulsars, defying the expectations of the magnetic field evolution of these stellar remnants? In this talk I will review the ten discoveries made so far, informative simulations of their evolution, the potential physical explanations, and the prospects for detecting more of these sources in ongoing and upcoming Australian and international radio surveys, that will help uncover their true nature.

Author

Natasha Hurley-Walker (Curtin University / International Centre for Radio Astronomy Research)

Presentation materials

There are no materials yet.