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An Estimation of the Geometrical Structure of Polar Cap and Emission Property of Radio Pulsar: A Treatment from an Analytical Approach

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dc.contributor.author Roy, Tridib
dc.date.accessioned 2023-04-26T08:21:57Z
dc.date.available 2023-04-26T08:21:57Z
dc.date.issued 2023-04
dc.identifier.citation Research in Astronomy and Astrophysics, Vol. 23, No. 4, 045004 en_US
dc.identifier.issn 2397-6209
dc.identifier.uri http://hdl.handle.net/2248/8183
dc.description Restricted Access en_US
dc.description.abstract Pulsars are believed to be one of the most interesting objects in the universe. The emission mechanism of pulsars is still a conundrum to physicists, as there is no completely acceptable theory that can establish a consensus between theory and observation. Pulsars possess a gigantic magnetic field, to the order of 1012 Gauss, and generate a very powerful radio beam from the magnetic pole. However, the powerful radio beam is generated by some complicated coherent plasma processes and acceleration in the pulsar magnetosphere. The location of the origin of the radio waves has been predicted to come out exclusively from the polar cap zone, whose boundary is defined by the footprint of the last open field line. However, in this paper, we mainly try to generate the shape of the polar cap structure from an analytical solution and discuss how it gets distorted for different geometrical parameters due to the presence of perturbation such as polar cap current flow. Also, apart from that, we try to emphasize understanding the variation of radio emission height and polarization angle with respect to different geometryrelated parameters as well as with frequency. en_US
dc.language.iso en en_US
dc.publisher IOP Publishing en_US
dc.relation.uri https://doi.org/10.1088/1674-4527/acb9dd
dc.rights © 2023. National Astronomical Observatories, CAS and IOP Publishing
dc.subject (stars:) pulsars: general en_US
dc.subject Stars: neutron en_US
dc.subject Radiation mechanisms: non-thermal en_US
dc.title An Estimation of the Geometrical Structure of Polar Cap and Emission Property of Radio Pulsar: A Treatment from an Analytical Approach en_US
dc.type Article en_US


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