GBT21B-354

Radio monitoring of quiescent magnetars

Abstract

Magnetars are an exciting class of neutron stars with strong surface magnetic fields and can show outbursts at high-energies. For a handful of sources these outbursts also onset observable radio emission of the neutron star. The connection between the high-energy bursting emission and radio emission is still not understood. Although the radio observations after the burst onset provide interesting results, less is known about their behaviour in quiescence. To remove the bias of observing magnetars only after activity periods, we set out to monitor the radio behaviour of the radio loud magnetars in quiescence to obtain the stable radio properties of the magnetars before they go into outburst. Monitoring the radio emission preluding bursting epochs will provide valuable constraints on magnetar emission models. Here we request monitoring observations to three sources to study their pulse profile morphology, spectral and temporal evolution.

Investigators

Name	Institution
Samayra Straal *	Abu Dhabi, New York University
Yogesh Maan	Tata Institute of Fundamental Research
Joseph Gelfand	New York University; National Science Foundation ; Abu Dhabi, New York University
Chryssa Kouveliotou	George Washington University
Moaz Abdelmaguid	New York University; Abu Dhabi, New York University

* indicates the PI