Radio Emission from Ultra-long Period Magnetars
Alexander Cooper (University of Oxford)

The nature of the recently discovered class of object known as long period radio transients is uncertain. New evidence suggests two distinct classes are emerging: white dwarf binary systems and isolated, slowly rotating neutron stars. In the neutron star interpretation, long periods strongly challenge all current rotation-powered models of pulsar radio emission. In this talk I will discuss the observational status of these novel sources, and present a new model for radio emission from highly magnetized neutron stars, in which crustal stress driven mild magnetospheric twists produce coherent radio emission. I will introduce the likely driving forces behind emission including the magnetically driven plastic crustal flow, and show how inverse-Compton scattered or curvature photons can naturally produce coherent radio emission which matches observed luminosities, variability, pulse profiles and polarimetric properties. I will further detail our predictions of multi-wavelength counterparts and new ‘active-zones’ in which further long period sources may soon be discovered. I will conclude with an observational and theoretical outlook for these fascinating sources.

THE WILLIAM NORDBERG AWARD AND LECTURE
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Mian Chin, Goddard Space Flight Center

TBD
Anna Ho (Cornell)