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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7138
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dc.contributor.authorMcSweeney, S J-
dc.contributor.authorBhat, N.D.R.-
dc.contributor.authorTremblay, S.E.-
dc.contributor.authorDeshpande, A.A.-
dc.contributor.authorWright, G.-
dc.date.accessioned2019-01-27T18:17:03Z-
dc.date.available2019-01-27T18:17:03Z-
dc.date.issued2019-01-07-
dc.identifier.citationAstrophysical Journal, 2019, Vol. 870, p48en_US
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357-(Online)-
dc.identifier.urihttp://hdl.handle.net/2289/7138-
dc.descriptionOpen Accessen_US
dc.description.abstractThe phenomenon of subpulse drifting offers unique insights into the emission geometry of pulsars, and is commonly interpreted in terms of a rotating carousel of "spark" events near the stellar surface. We develop a detailed geometric model for the emission columns above a carousel of sparks that is entirely calculated in the observer's inertial frame, and which is consistent with the well-understood rotational effects of aberration and retardation. We explore the observational consequences of the model, including (1) the appearance of the reconstructed beam pattern via the cartographic transform and (2) the morphology of drift bands and how they might evolve as a function of frequency. The model, which is implemented in the software package PSRGEOM, is applicable to a wide range of viewing geometries, and we illustrate its implications using PSRs B0809+74 and B2034+19 as examples. Some specific predictions are made with respect to the difference between subpulse evolution and microstructure evolution, which provides a way to further test our model.en_US
dc.language.isoenen_US
dc.publisherIOP Sciences for The American Astronomical Societyen_US
dc.relation.urihttp://inspirehep.net/record/1706260?ln=enen_US
dc.relation.urihttps://arxiv.org/abs/1812.00526en_US
dc.relation.urihttp://dx.doi.org/en_US
dc.rights2019, The American Astronomical Societyen_US
dc.subjectpulsarsen_US
dc.subjectgeneral – pulsarsen_US
dc.subjectindividual (B0809+74, B2034+19, B0031-07) – radiation mechanismsen_US
dc.titleOn the Geometry of Curvature Radiation and Implications for Subpulse Driftingen_US
dc.typeArticleen_US
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