Archive abstract

Abstract of the proposal for the experiment EN006D


Late-time (~6.2 years post explosion) observations of the atypical supernova SN 2012au, show evidence of a pulsar wind nebula (PWN; Milisavljevic et al. 2018). This PWN candidate, if confirmed, would be the youngest PWN ever observed - providing the rare opportunity to study the birth properties of a pulsar and the early evolution of its nebula. Recent observations with the VLA uncovered bright, late-time radio emission (7.7+-0.5 mJy and 8.09+-0.03 mJy at 6.1 GHz on November 5, 2018 and September 12, 2019, respectively; Coppejans, Margutti et al. in prep.). However, it is currently difficult to robustly distinguish between the competing theories for the origin of the emission: a young PWN versus late-time re-brightening from the supernova shock. EVN observations are crucial to study the morphology and size of the observed emission region - in order to firmly establish the origin of the emission and to study the properties of this novel source.
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