A periodically active pulsar giving insight into magnetospheric physics

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dc.creatorKramer, M.
dc.creatorLyne, A. G.
dc.creatorO'Brien, J. T.
dc.creatorJordan, C. A.
dc.creatorLorimer, D. R.
dc.date2006-04-28
dc.date.accessioned2026-07-07T13:02:33Z
dc.date.available2026-07-07T13:02:33Z
dc.descriptionPSR B1931+24 (J1933+2421) behaves as an ordinary isolated radio pulsar during active phases that are 5-10 days long. However, the radio emission switches off in less than 10 seconds and remains undetectable for the next 25-35 days, then it switches on again. This pattern repeats quasi-periodically. The origin of this behaviour is unclear. Even more remarkably, the pulsar rotation slows down 50% faster when it is on than when it is off. This indicates a massive increase in magnetospheric currents when the pulsar switches on, proving that pulsar wind plays a substantial role in pulsar spin-down. This allows us, for the first time, to estimate the currents in a pulsar magnetospheric during the occurrence of radio emission.
dc.description12 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0604605
dc.identifierhttp://arxiv.org/abs/astro-ph/0604605
dc.identifierScience 312:549-551,2006
dc.identifierdoi:10.1126/science.1124060
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226484
dc.subjectAstrophysics
dc.titleA periodically active pulsar giving insight into magnetospheric physics
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