| Description |
We plan to search for pulsed radio-emission in transient "magnetar" sources (already known or to be discovered yet at the time of submission of this proposal), during the phase following an X-ray outburst, i.e. after an increasing of the X-ray flux of the magnetar of a factor at least 10 with respect to the normal emission. Observations of past years showed that radio-emission has been triggered in transient magnetars in at least 2 cases over 3 after this kind of outburst. However, no prompt radio observation had been planned in those cases, preventing to investigate the phase of onset of the radio emission. That may greatly contribute to clarify the nature of the radio-emission mechanism in the "magnetars" and the relation between them and the canonical radio pulsars. A similar program of NAPA observations has been planned by our group at various X-ray satellites and ground based infrared and optical telescopes, thus allowing a multi-wavelenght investigation of the sources.
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