A study of the radio activity of magnetar XTE J1810-197 four years after its outburst
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Tuesday 9th
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A study of the radio activity of magnetar XTE J1810-197 four years after its outburst
Magnetars are a particular class of young neutron stars. They are characterised by their long rotational periods and gigantic surface magnetic fields (10**13-10**15 G). They exhibit a rich transient phenomenology observed mainly in X-Ray, including events such as giant flares, short bursts and outburst. Of the total 30 known magnetars, only 6 had emission detected in radio frequencies. Five of them had radio emission associated with X-ray outbursts, the six of them had Fast Radio Burst /FRB)-like emission. Magnetar XTE J1810-197 had an outburst in late 2018, observed in X-ray and radio. We started a high cadence monitoring campaing of this source in September 2022 with the radiotelescopes of the Instituto Argentino de Radioastronomía (IAR). We performed the observations with a highest freequency of 1456 MHz and a time resolution of 146 us. Here we present an study of the transient radio emission detected from the magnetar 4 years from it outburst.