Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/44966
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dc.contributor.authorAliu, E.-
dc.contributor.authorBarrio, J. A.-
dc.contributor.authorBordas Coma, Pol-
dc.contributor.authorBosch i Ramon, Valentí-
dc.contributor.authorCamara, M.-
dc.contributor.authorContreras, J. L.-
dc.contributor.authorCortina Blanco, Juan-
dc.contributor.authorReyes, R. de los-
dc.contributor.authorErrando, M.-
dc.contributor.authorMiranda, J. M.-
dc.contributor.authorMoralejo, Abelardo-
dc.contributor.authorNieto, D.-
dc.contributor.authorOya, I.-
dc.contributor.authorParedes i Poy, Josep Maria-
dc.contributor.authorPuchades, N.-
dc.contributor.authorRibó Gomis, Marc-
dc.contributor.authorSidro Martín, Núria-
dc.contributor.authorTescaro, Diego-
dc.contributor.authorZabalza de Torres, Víctor-
dc.contributor.authorZanin, Roberta-
dc.date.accessioned2013-07-19T09:09:41Z-
dc.date.available2013-07-19T09:09:41Z-
dc.date.issued2008-
dc.identifier.issn0036-8075-
dc.identifier.urihttp://hdl.handle.net/2445/44966-
dc.description.abstractOne fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on this question. By developing a new electronic trigger, we lowered the threshold of the Major Atmospheric γ-ray Imaging Cherenkov (MAGIC) telescope to 25 giga-electron volts. In this configuration, we detected pulsed γ-rays from the Crab pulsar that were greater than 25 giga-electron volts, revealing a relatively high cutoff energy in the phase-averaged spectrum. This indicates that the emission occurs far out in the magnetosphere, hence excluding the polar-cap scenario as a possible explanation of our measurement. The high cutoff energy also challenges the slot-gap scenario.-
dc.format.extent10 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Association for the Advancement of Science-
dc.relation.isformatofVersió postprint del document publicat a: http://dx.doi.org/10.1126/science.1164718-
dc.relation.ispartofScience, 2008, vol. 322, num. 5905, p. 1221-1224-
dc.relation.urihttp://dx.doi.org/10.1126/science.1164718-
dc.rights(c) Aliu, E. et al., 2008-
dc.subject.classificationPúlsars-
dc.subject.classificationTelescopis espacials-
dc.subject.classificationElectromagnetisme-
dc.subject.classificationAstronomia de raigs gamma-
dc.subject.classificationMagnetosfera-
dc.subject.classificationRadiació sincrotrònica-
dc.subject.otherPulsars-
dc.subject.otherSpace telescopes-
dc.subject.otherElectromagnetism-
dc.subject.otherGamma ray astronomy-
dc.subject.otherMagnetosphere-
dc.subject.otherSynchrotron radiation-
dc.titleObservation of Pulsed γ-Rays Above 25 GeV from the Crab Pulsar with MAGIC-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.identifier.idgrec567364-
dc.date.updated2013-07-19T09:09:42Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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